SE544112C2 - Deterrent composition and method - Google Patents
Deterrent composition and methodInfo
- Publication number
- SE544112C2 SE544112C2 SE2050773A SE2050773A SE544112C2 SE 544112 C2 SE544112 C2 SE 544112C2 SE 2050773 A SE2050773 A SE 2050773A SE 2050773 A SE2050773 A SE 2050773A SE 544112 C2 SE544112 C2 SE 544112C2
- Authority
- SE
- Sweden
- Prior art keywords
- undecenal
- cis
- precursor
- location
- fruits
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002243 precursor Substances 0.000 claims abstract description 58
- 241001136566 Drosophila suzukii Species 0.000 claims abstract description 53
- 238000006701 autoxidation reaction Methods 0.000 claims abstract description 11
- 235000013399 edible fruits Nutrition 0.000 claims description 68
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 244000078534 Vaccinium myrtillus Species 0.000 claims description 22
- 235000003095 Vaccinium corymbosum Nutrition 0.000 claims description 19
- 235000017537 Vaccinium myrtillus Nutrition 0.000 claims description 19
- 235000021014 blueberries Nutrition 0.000 claims description 19
- 241000196324 Embryophyta Species 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 8
- 244000005700 microbiome Species 0.000 claims description 7
- XDZHZBMDQJPELG-VMNXYWKNSA-N (7Z,11Z)-octadeca-7,11-diene Chemical compound CCCCCC\C=C/CC\C=C/CCCCCC XDZHZBMDQJPELG-VMNXYWKNSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- RJYQFYALHBHYMG-ADYYPQGGSA-N 7Z,11Z-Heptacosadiene Chemical compound CCCCCCCCCCCCCCC\C=C/CC\C=C/CCCCCC RJYQFYALHBHYMG-ADYYPQGGSA-N 0.000 claims description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- 150000001993 dienes Chemical class 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 4
- 235000009434 Actinidia chinensis Nutrition 0.000 claims description 3
- 244000298697 Actinidia deliciosa Species 0.000 claims description 3
- 235000009436 Actinidia deliciosa Nutrition 0.000 claims description 3
- 244000144730 Amygdalus persica Species 0.000 claims description 3
- 241000167854 Bourreria succulenta Species 0.000 claims description 3
- 240000009088 Fragaria x ananassa Species 0.000 claims description 3
- 244000018633 Prunus armeniaca Species 0.000 claims description 3
- 235000009827 Prunus armeniaca Nutrition 0.000 claims description 3
- 235000006029 Prunus persica var nucipersica Nutrition 0.000 claims description 3
- 235000006040 Prunus persica var persica Nutrition 0.000 claims description 3
- 244000017714 Prunus persica var. nucipersica Species 0.000 claims description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 3
- 241000219094 Vitaceae Species 0.000 claims description 3
- 235000021029 blackberry Nutrition 0.000 claims description 3
- 235000019693 cherries Nutrition 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 235000021021 grapes Nutrition 0.000 claims description 3
- 235000021013 raspberries Nutrition 0.000 claims description 3
- 235000021012 strawberries Nutrition 0.000 claims description 3
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 244000235659 Rubus idaeus Species 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 22
- 235000021028 berry Nutrition 0.000 description 14
- 235000013601 eggs Nutrition 0.000 description 13
- 241000607479 Yersinia pestis Species 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000017448 oviposition Effects 0.000 description 9
- 239000000575 pesticide Substances 0.000 description 9
- PANBRUWVURLWGY-MDZDMXLPSA-N (E)-2-undecenal Chemical compound CCCCCCCC\C=C\C=O PANBRUWVURLWGY-MDZDMXLPSA-N 0.000 description 6
- 241000255925 Diptera Species 0.000 description 6
- 230000006378 damage Effects 0.000 description 6
- QGNDNDFXCNBMKI-FPLPWBNLSA-N (z)-undec-4-enal Chemical compound CCCCCC\C=C/CCC=O QGNDNDFXCNBMKI-FPLPWBNLSA-N 0.000 description 5
- 238000003556 assay Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 230000005070 ripening Effects 0.000 description 4
- 206010061217 Infestation Diseases 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 3
- 241000894007 species Species 0.000 description 3
- QGNDNDFXCNBMKI-UHFFFAOYSA-N undec-4-enal Natural products CCCCCCC=CCCC=O QGNDNDFXCNBMKI-UHFFFAOYSA-N 0.000 description 3
- 241000234282 Allium Species 0.000 description 2
- 241000255581 Drosophila <fruit fly, genus> Species 0.000 description 2
- 241000255601 Drosophila melanogaster Species 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 244000070406 Malus silvestris Species 0.000 description 2
- 240000007651 Rubus glaucus Species 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 238000000540 analysis of variance Methods 0.000 description 2
- 235000021016 apples Nutrition 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- NZQSUCLQBVGGNO-UHFFFAOYSA-N 4-methyl-1-oxaspiro[5.5]undecane Chemical compound C1C(C)CCOC11CCCCC1 NZQSUCLQBVGGNO-UHFFFAOYSA-N 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- AIJXBORWPJNFIJ-LRIZWFDKSA-N CCCCCC/C=C\CC/C=C\C Chemical group CCCCCC/C=C\CC/C=C\C AIJXBORWPJNFIJ-LRIZWFDKSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 244000141359 Malus pumila Species 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 150000007824 aliphatic compounds Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P17/00—Pest repellants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N2300/00—Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/10—Animals; Substances produced thereby or obtained therefrom
- A01N63/14—Insects
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Plant Pathology (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Agronomy & Crop Science (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Catching Or Destruction (AREA)
Abstract
A method of deterring Drosophila suzukii, comprising providing an effective dose of cis-4-undecenal, or a precursor yielding cis-4-undecenal through autoxidation, at a location from which Drosophila suzukii should be deterred, is disclosed. Use of cis-4-undecenal for deterring Drosophila suzukii, and a deterrent composition and a device for deterring Drosophila suzukii, the deterrent composition and device comprising cis-4-undecenal or a precursor yielding cis-4-undecenal through autoxidation, are also disclosed.
Description
DETERRENT COMPOSITION AND METHOD Technical field The technology proposed herein relates generally to the field of deterrent compositions and methods for deterring pests. More particularly the technology proposed herein concerns deterrent compositions comprising aldehydes, in particular, (Z)-4-_undecenal,_for ._ ~ formaterade: Teckensnirckursiv deterring flies, in particular Drosophila suzukii, the spotted wing Drosophila.
Background Damage caused by pests, such as flies, can have significant economic consequences forfarmers growing inter alia fruits and berries. Such pests may inter alia feed on parts of thefruits or berries, or deposit eggs that develop into larvae that feed on or in the fruits orberries. ln both cases the affected fruits and berries become damaged, and thereforedecrease in attractiveness and value from a consumer perspective. The damage broughtupon the berries or fruits by the pests may additionally allow or promote further damage,such as from other pests, microorganisms, or diseases, thus leading to further economicloss for the farmers. Conversely, some pests, including flies, only affect, e.g. feed on andlay eggs on and in, already damaged or overripe fruits. One such pest is the drosophilid fly Drosophila melanogaster.
Another Drosophila fly, Drosophila suzukii (also known as spotted wing drosophila), hassince the year 2008 invaded North America and Europe from Asia, thereby causingdevastating economic cost for farmers each year. Unlike most drosophilid flies, like theabove-mentioned Drosophila melanogaster which infest overripe and damaged fruit,female Drosophila suzukii puncture the fruit skin, using a serrated ovipositor, to inserteggs (oviposit) into, and damage, fresh ripening fruits. Larvae develop in the pulp beforeharvest. The developing larvae consume the fruit flesh resulting in collapse of the fruits.Secondary infestations by fungi and bacteria, as well as other insects is common. Thismakes Drosophila suzukii more difficult to control, and this initial damaging of undamaged,ripening fruits further, as discussed above, facilitates and increases the risk of other pestsattacking the fruit or berry. Moreover, Drosophila suzukii also infests stored fruit post-harvest. lrrelevant if infested pre- or post-harvest, developing larvae make fruit non-marketable. Fruits affected include strawberries, cherries, blueberries, raspberries, blackberries, peaches, nectarines, apricots, kiwi, grapes, and other soft fruits.
Measures for prevention and suppression of damage include harvest before ripeness, useof insect nets and strict sanitary measures such as destruction of infested fruits. However,these control methods for example can only be applied for certain fruits, are costly and not always practical.
Pesticides have also been used for controlling Drosophila suzukii. EP3488695A1 thusdiscloses pesticide compositions comprising one or more pesticide volatile organiccompounds made up from branched or cyclic alkanes or alkenes. As shown in Fig. 1B ofthis document, various compounds were effective in killing Drosophila suzukii flies,Pesticides are however generally, due to their toxicity, less desirable to use close to, oron, fruits intended for human consumption. lt is further difficult to target larvae inside thefruit with a pesticide. There is also a risk of pesticides killing or affecting (non-target)species other than the target species to be controlled by the pesticide. Further, in order toget an effect, i.e. a killing of the pests, an effective amount of the pesticide has to be provided to the species to be controlled by the pesticide.
There is accordingly a need for further methods, uses, and compositions that can be used to protect fruit from infestation by Drosophila suzukii.
Ob'ect of the Technology lt is accordingly a first object of the technology proposed herein to provide methods anduses for deterring Drosophila suzukii, in particular for deterring Drosophila suzukii from ovipositioning. lt is a further object of the technology proposed herein to provide a deterrent composition for deterring Drosophila suzukii. lt is yet a further object of the technology proposed herein to provide a device for deterring Drosophila suzukii.
Summam At least one of the abovementioned objects, or at least one of the further objects whichwill become evident from the below description, is according to corresponding first and second aspects of the technology proposed herein obtained by a method of deterring Drosophila suzukii, comprising providing an effective dose of cis-4- undecenal (s: a at a location from which Drosophila suzukii should be deterred.___and the use of cis-4-undecenal for deterring Drosophila suzukii.
Accordingly, the technology proposed herein is based on the discovery, as validated inExample 1, that cis-4-undecenal significantly decreases the oviposition of Drosophilasuzukii. ln other words, fewer eggs are laid in fruits in locations provided with cis-4-undecenal. This decrease in oviposition is significant, both in comparison with ethanol(controls) and in comparison, with the general aldehyde trans-2-undecenal.
The method and use according to the corresponding first and second aspects of thetechnology proposed herein provides for deterring Drosophila suzukii, thereby providing away of reducing and/or preventing the problem of Drosophila suzukii infestations.
Below, features applicable to both the first and second aspects of the technology proposed herein will be discussed.
Deterring Drosophila suzukii encompasses one or more of at least partially keepingDrosophila suzukii away from the location, reducing the attractiveness of the location toDrosophila suzukii, reducing the number of Drosophila suzukii in the location, andreducing the tendency of Drosophila suzukii to oviposit in the location.
Preferably, deterring Drosophila suzukii comprises or consists of deterring Drosophilasuzukii from ovipositioning, such as reducing the tendency of Drosophila suzukii to oviposit, at or in, the location.
The cis-4-undecenal, or a precursor as described further below, may be provided in solidphase, liquid phase or in gas phase in the location.
An effective dose of cis-4-undecenal is a dose sufficient to deter Drosophila suzukii in orfrom the location. The effective dose will depend on the size of the location and themanner in which the cis-4-undecenal is provided at the location. One of ordinary skill inthe art will be able of determining an effective dose on the basis of the examples and theembodiments discussed further below, and on the basis of observing whether Drosophilasuzukii is deterred from the location.
Where the cis-4-undecenal is provided as a precursor as described further below, then aneffective dose of the precursor is a dose sufficient to provide, through autoxidation of the precursor, an effective dose of cis-4-undecenal as described above.
Cis-4-undecenal is also known as (Z)-4-undecenal, cis-Undec-4-enal, (Z)-undec-4-enal, orZ4-11Al. lt has the CAS number 68820-32-6, the molecular formula C11H20O and a molecular weight of 168.28 g/mol. The structural formula is given as formula I below: The location may comprise any location in which fruits are grown, handled, transported, orstored. The location may for example comprise an individual fruit, a fruit bearing plant orbush, a fruit tree, a garden, an orchard, a greenhouse, all or a portion of a processingplant for handling, processing and/or packing the fruits, etc.
Additionally, the location may comprise a bag, box, or other container into whichharvested fruit is to be placed, or has been placed, for example for transporting and/orstoring the fruit. This includes freight containers carried by road vehicle, ship or plane, as well as holds on ships in which fruit has been, or will be, placed.
The cis-4-undecenal may be provided at the location by providing cis-4-undecenal per seat the location, or by providing a precursor yielding cis-4-undecenal through autoxidationat the location.
The precursor can be any linear aliphatic compound with at least 13 carbon atoms andcomprising Z double bonds at carbon atoms N and N+4 that is capable of yielding cis-4-undecenal through autoxidation. One example is (Z,Z)-7,11 tridecadiene.
The precursor is preferably a (Z,Z,Z)-7,11,15-triene, such as (Z,Z,Z)-7,11,15-docosatriene, or a (Z,Z)-7,11 diene such as (Z,Z)-7,11-octadecadiene or (Z,Z)-7,1 1-heptacosadiene.
The precursor preferably yields cis-4-undecenal in one reaction step of autoxidation.The rate at which the precursor autoxidizes depends on the temperature and partialpressure of oxygen in the location. Preferred precursors are those that autoxidizes at arate sufficient so that that at least 1% of the precursor has autoxidized yielding cis-4-undecenal after 2 hours in the location, alternatively at least 1% of the precursor has autoxidized yielding cis-4-undecenal after 1 hours in the location.
Preferably the method and corresponding use comprises deterring Drosophila suzukii from fruits provided at the location.
The fruits are preferably ripening or ripe fruits. Preferably the fruits are selected from thegroup consisting of strawberries, cherries, blueberries, raspberries, blackberries, peaches,nectarines, apricots, kiwi, and grapes.
Preferably the method and corresponding use comprises deterring Drosophila suzukii from ovipositioning on the fruits.
Preferably the cis-4-undecenal is provided at a dose of at least 0.1 ng cis-4-undecenal perg fruits, preferably at least 0.5 ng cis-4-undecenal per g fruits, more preferably at least 1ng cis-4-undecenal per g fruits. ln example 1 and 2, the dose used was 1.18 or 1 _23 ng cis-4-undecenal per g fruits, whichprovided a clear deterring effect of Drosophila suzukii, as noted in the decreased ovipositionon the berries. These dosages thus provide examples of an effective dose of cis-4-undecenal. Depending on the weight amount of fruit in the location, the total amount of cis- 4-undecenal provided in the location may be adjusted according to these dosages.
Alternatively, or additionally, the cis-4-undecenal is provided at a dose of at least 0.7 ug cis-4-undecenal per m2 of fruit surface area, preferably at least 3.5 ug cis-4-undecenal per m2of fruit surface area, more preferably at least 7 ug cis-4-undecenal per m2 of fruit surfacearea. ln example 1 and 2, the dose used was 7.8 or 8.1 ug cis-4-undecenal per m2 of fruit surfacearea, and this provided a clear deterring effect of ššæsærDrosophi/a suzukii, as noted in thedecreased oviposition on the berries.
These dosages thus provide examples of an effective dose of cis-4-undecenal.
Where a precursor yielding cis-4-undecenal is used as described above, then the dose ofthe precursor åßgggpreferably selected so as to provide the abovementioned dosages of cis- 4-undecenal.
The cis-4-undecenal or the precursor is preferably applied to the vegetation canopy of theplants, bushes or trees carrying the fruits, or to a bag, box, or other container in which thefruits are placed for transport and/or storage.
The cis-4-undecenal or the precursor may alternatively be applied, such as by spraying ordipping, in or at the location, such as by spraying or dipping the fruits.
Spraying may be used for applying the cis-4-undecenal or the precursor to fruits stillattached to plants, bushes or trees, whereas spraying or dipping may be applied to fruitsthat have been harvested, such as prior to the fruits being stored for later marketing and consumption. Cis-4-undecenal or the precursor may be sprayed using conventional spraying equipment, if needed dissolved in a suitable solvent, i.e. as the compositionaccording to the third aspect of the technology proposed herein. Likewise, cis-4-undecenal or the precursor, if needed dissolved in a suitable solvent, i.e. as thecomposition according to the third aspect of the technology proposed herein, may beprovided in a conventional container or bath into which the fruits are dipped. The cis-4-undecenal or the precursor may inter alia be applied to fruits being transported on aconveyor, mixed with fruits in a mixer or funnel, applied to fruits in storage or fruits being transported, etc. ln a further alternative, the cis-4-undecenal or the precursor is provided in a dispenserarranged at the location, the dispenser being configured to release the cis-4-undecenal orthe precursor.
This provides an alternative to applying the cis-4-undecenal or the precursor to thevegetation canopy or bag, box, or other container, and to applying the cis-4-undecenal tothe fruit itself. ln line with the above, the dispenser may for example be arranged in a bag,box, or other container in which the fruits are placed for transport and/or storage. Providingthe precursor or the cis-4-undecenal in a dispenser may prolong the effect of the cis-4- undecenal.
The dispenser may comprise a source of cis-4-undecenal or the precursor, such as acontainer or absorbent body holding cis-4-undecenal or the precursor, and dispensingdevice, such as a nozzle or outlet in contact with the source, for releasing the cis-4-undecenal or the precursor. The dispensing device may further comprise asemipermeable membrane or septa for releasing the cis-4-undecenal or the precursor.The dispenser may additionally comprise a pump or other means, such a source ofpressure, for pumping or pressuring the cis-4-undecenal or the precursor from the sourceof cis-4-undecenal or precursor to the dispensing device. ln these cases, the dispenserpreferably further comprises a control device for controlling actuation of the pump or othermeans, and/or the dispensing device, in order to provide the effective dose. The controldevice may inter alia comprise a clock device for controlling actuation at regular times,and for predetermined periods, to provide the efficient dose. Alternatively, or additionally,the control device may comprise a sensor for determining conditions at the location andfor controlling the actuation depending on the conditions determined. The conditions mayinclude one or more parameters such as temperature, light level, wind, and concentration of cis-4-undecenal in the atmosphere in the location, or information about pest abundance. The control device my further comprise an interface for receiving remotecommands enabling remote actuation.
Additionally or alternatively, the source of cis-4-undecenal or the precursor and thedispensing device, i.e. the dispenser, may comprise a rigid or non-rigid container, such asa sachet, having a wall defining an interior volume for holding cis-4-undecenal or theprecursor, where at least a section of the wall is permeable to the cis-4-undecenal or theprecursor. The dispenser may therefore for example comprise a plastic bag, sachet, ortube, for example made from polyethylene or other material permeable to cis-4-undecenal or the precursor.
Alternatively, the cis-4-undecenal or the precursor is provided by being synthesized by aplant or microorganism, more preferably a yeast or other microorganism, provided at thelocation, the genome of the plant or microorganism comprising a gene causing the plant toproduce and release cis-4-undecenal or the precursor. Suitable plants could inter alia include plants in the onion genus Allium and various herbs.
At least one of the abovementioned objects, or at least one of the further objects whichwill become evident from the below description, is according to the third aspect of thetechnology proposed herein further obtained by a deterrent composition for deterringDrosophila suzukii, the deterrent composition comprising cis-4-undecenal or a precursoryielding cis-4-undecenal through autoxidation, dissolved in a solvent, wherein theprecursor is as described above and preferably is a (Z,Z,Z)-7,11,15-triene, such as(Z,Z,Z)-7,11,15-docosatriene, or a (Z,Z)-7,11 diene such as (Z,Z)-7,11-octadecadiene or The deterrent composition according to the third aspect of the technology proposed hereinis advantageously used in the method and use according to the corresponding first andsecond aspects of the technology proposed herein.
The deterrent composition is preferably an ovipositional deterrent or ovipositional repellant.
The solvent is preferably selected from the group consisting of ethanol, acetone, benzene,carbon tetrachloride, diethyl ether, ethylene glycol, polyethylene glycol, glycerol,nitromethane, pyridine, and toluene.
Of these solvents, ethanol is preferred as it is readily available and generally safe.
Preferably, the composition comprises at least 0.1 mg/liter, preferably at least 0.5 mg/liter,more preferably at least 1 mg/liter of cis-4-undecenal, or alternatively, the composition comprises an amount of the precursor that, uponautoxidation, yields at least 0.1 mg/liter, preferably at least 0.5 mg/liter, more preferably atleast 1 mg/liter of cis-4-undecenal. 1 mg/liter corresponds to the 1ng/uL used in the examples.
The deterrent composition rsss§<~§ :åaégffurther comprise§; a viscosity-increasingcompound, which when included in the deterrent composition increases the viscosity ofthe deterrent composition.
This is advantageous in that it increases the tendency of the deterrent composition toadhere to a surface, such as the surface of a fruit or other plant material such as thevegetation canopy, or to a surface such as the surface of a bag, box or other container inwhich the fruit is transported and/or stored. This eases the application of the deterrentcomposition and increases the longevity, as the deterrent composition is less affected byrain and winds, as well as physical contact with other fruits, leaves, and plant parts. lnaddition, a viscosity increasing compound would limit the release rate of the cis-4-undecenal or the precursor, thus slowing down the release rate and thereby prolongingthe effect of the deterrent composition. ln particular, the addition of the viscosity-increasing compound may allow the deterrent composition to be formulated with aconcentration of cis-4-undecenal or precursor that is higher than ideally released, butwhich however, due to the lower release rate, is still released to provide an effective doseof cis-4-undecenal, however, over a longer time.
Suitable viscosity-increasing compounds include polyethylene glycol, glycerol, waxes, oils, etc.
The deterrent composition may be solid. This may be caused by providing a suitableviscosity-increasing compound at a suitable concentration. To render the deterrentcomposition solid a polyethylene glycol with a high viscosity and a high molecular weightmay for example be used. Alternatively, a wax may to render the deterrent compositionsolid.
A solid deterrent composition may for example be easily provided in a dispenser orattached to a plant or scattered over or around fruits. This may be advantageous as itallows the cis-4-undecenal or the precursor to be provided at a location while being separate from fruit at that location. 9 Alternatively, or additionally, the deterrent composition may comprise the cis-4-undecenalor the precursor in encapsulated form. The cis-4-undecenal or the precursor, with orwithout solvent, may thus be encapsulated. Possible encapsulants include inter alia starch matrices, various polymeric coatings, oil-in-water emulsions, and lipid nanoparticles. lt is further noted within the context of the technology proposed herein that (Z,Z,Z)-7,11,15-docosatriene and (Z,Z)-7,11-octadecadiene may be especially advantageous as aprecursor as it forms cis-4-undecenal from both ends during autoxidation. Accordingly,one further aspect of the technology proposed herein thus concerns a deterrent composition comprising (Z,Z,Z)-7,11,15-docosatriene or (Z,Z)-7,11-octadecadiene.
At least one of the abovementioned objects, or at least one of the further objects whichwill become evident from the below description, is according to the fourth aspect of the technology proposed herein further obtained by a device for deterring Drosophila suzukii, the device comprising §~cis-4-undecenal or a precursor yielding cis-4- undecenal through autoxidation, wherein the precursor preferably is a (Z,Z,Z)-7,11,15- Preferably the device comprises av :r-the deterrent composition according to the third aspect of the technology proposed herein.
Preferably the device comprises a dispenser configured to release the cis-4-undecenal orthe precursor as vapor or gas.
The dispenser may be configured as described above.
Brief description of the drawinqs and detailed description A more complete understanding of the abovementioned and other features andadvantages of the technology proposed herein will be apparent from the following detaileddescription of preferred embodiments in conjunction with the appended drawings,wherein:Fig. 1 shows the mean number of eggs laid by mated female (n=54) of Drosophilasuzukii after 24 h in a dual-choice assay on blueberries treated with either 5 ngof cis-4-undecenal (Z4-11Al; dissolved in 5 ul ethanol) or 5 uL of ethanol(EtOH) as a control.Fig. 2 shows the mean number of eggs laid by mated female (n=37) of Drosophilasuzukii after 24 h in a dual-choice assay on blueberries treated with either 5 ngof cis-4-undecenal (Z4-11Al) or 5 ng trans-2-undecenal (E2-11Al) as a control.The assay was conducted in a Petri-dish (1 female/Petri-dish). The number ofeggs was used as a proxy for oviposition preference and was analyzed byANOVA (F=4. 465; *p=0.038).Fig. 3A shows a dispenser being used to deter Drosophila suzukii from apples on anapple tree.Fig. 3BFig. 3C shows the dispenser in Fig. 3A in closer detail. shows an alternative dispenser. ln the figures and the description, the same reference numeral is used to refer to thesame feature. A ' added to a reference numeral indicates that the feature so referencedhas a similar function, structure or significance as the feature carrying the reference numeral without the ', however not being identical with this feature.
Example 1: cis-4-undecenal (Z4-11Al) decreases oviposition by Drosophila suzukii on blueberries Methods and materials Drosophila suzukii (Italian strain) were acquired from an existing colony previouslycollected in ltaly (Mori et al., Enhanced yeast feeding following mating facilitates control ofthe invasive fruit pest Drosophila suzukii. Journal of Applied Ecology, 54(1), 170-177,2017). The colony was maintained in a quarantine lab on a standard Bloomington diet at atemperature of 25 i 2°C and relative humidity (RH) of 50 i 10%, under a 12:12 (L:D) 11 photoperiod. Virgin flies were collected 4 h post-eclosion and sexed under gentle streamof C02. Male and female flies were kept separately in new food vials until 4-6 days whenthey were mixed in a new food vial for mating. Mating couples were collected with a glassPasteur pipette and relocated to an empty vial. The vials were plugged with a moisturizedcotton ball. Successfully mated females were used for the experiments. Mating was considered successful when male and female were separated from each other.
To determine the effect of cis-4-undecenal (Z4-1 1Al) on oviposition preference of D. suzukii,a dual-choice assay was performed (n=54). For oviposition substrates, blueberries werepurchased from a local grocery store. Prior to use, the surface area and weight for eachblueberry were determined. To determine the surface area, height and diameter of theblueberries were measured using a caliper ruler. Weight was determined using a weighingbalance (Precisa 4000 C, Precisa Gravimetrics AG, Switzerland). Additionally, theblueberries were graded according to ripeness and washed in deionized water and driedbefore use. To minimize variations due to size and weight of the blueberries, the substratesof similar phenological characters (weight, size, and ripeness) were paired in a glass Petri-dish (VWR 216-0073) (diameter = 115 mm, height = 65 mm). 5 uL of Z4-11Al (1 ng/uL,dissolved in ethanol) were applied on the surface of the blueberries. 5 uL of ethanol wasadded to the control blueberries. Two blueberries, i.e. a Z4-11Al-treated and a controlblueberry were arranged approximately 80 mm a part in one of the glass Petri-dishes. Matedfemales of D. suzukii were introduced, using a Pasteur-pipette, into the Petri-dishes (1female/Petri-dish) and covered with a perforated lid. To minimize variation due to firstcontact, the females were placed in the middle of the Petri-dishes at equidistance from theberries.
The number of eggs was used as a proxy for oviposition preference and was analyzed byANOVA.
Results The mean weight and surface area of berries were as follows: berry treated with Diameter (mm) surface area (mmz) weight (g)Z4-11Al 12.1310.77 320.12131.56 2.1110.32EtOH 12191069 322.10127.65 2.1110.33 As shown in Fig. 1, the mean number of eggs laid by mated females (n=54) of Drosophila suzukii after 24 h was significantly lower (F = 8.539, *p = 0.012) at 2.5 1 0.5 eggs on 12 blueberries treated with cis-4-undecenal (Z4-11Al) as compared to the control blueberries(5.2 i 0.8 eggs) treated with ethanol (EtOH).
Accordingly, treatment with cis-4-undecenal (Z4-11Al) provided a deterring effect on theDrosophila suzukiiflies (females) in that the number of eggs laid on the treated berries weresignificantly lower than on the control berries.
The dosing in this example was about 2.5 ng Z411Al per each blueberry, i.e. about 1.18 ngper gram blueberry. The corresponding dosage per surface area was 2.5 ng per 320.12 mm2 = 0,0078 ng per mm2.
Example 2: Comparison of cis-4-undecenal (Z4-11Al) and trans-2-undecenal (E2-11Al) Methods and materials To determine if Z4-11Al and trans-2-undecenal (E2-11Al) had different effect on theoviposition of D. suzukii, a second set of dual-choice experiments were conducted similarto the first dual-choice experiments (Example 1 above), except that blueberries treated with5 uL of E2-11Al (1 ng/uL) were paired with Z4-11Al treated blueberries (5 uL,1 ng/uL asabove) (n=37). ln both set-ups, the females were removed after 24 h, the number of eggslaid on the berries were counted under a microscope and used as a proxy for oviposition preference. Analysis of variance (ANOVA) was used for statistical analysis.
Results The mean weight and surface area of berries were as follows: berry treated with diameter (mm) surface area (mmz) weight (g)Z4-11Al 11.53 i 1.15 307.33 i 48.36 2.04 i 0.35E2-11Al 11.45 i 1.10 302.44 i 47.26 2.05 i 0.37 As shown in Fig. 2, the mean number of eggs laid by mated females (n=54) of Drosophilasuzukii after 24 h was significantly lower (F = 4.465; *p = 0.038) at 1.3 i 0.4 eggs onblueberries treated with cis-4-undecenal (Z4-11Al) as compared to 2.5 i 0.4 eggs on theblueberries treated with trans-2-undecenal (E2-11Al).
Accordingly, treatment with cis-4-undecenal (Z4-11Al) provided a significantly strongerdeterring effect on the Drosophila suzukiiflies (females) than trans-2-undecenal (E2-11Al).The dosing in this example was about 2.5 ng Z4-11Al per each blueberry, i.e. about 1.23ng per gram blueberry. The corresponding dosage per surface area was 2.5 ng per 307.33 mm2 = 0,0081 ng per mm2. 13 Fig. 3A shows a dispenser 10 (shown in more detail in fig. 3B) being used to deterDrosophila suzukii from ripening apples 4 on an apple tree 2.
The dispenser 10 comprises an enclosure 12 defining an interior volume 14, a source 16 ofcis-4-undecenal placed within the enclosure 12, a dispensing nozzle 18 connected to thesource 16 via a pump 20, the pump 20 alternatively being replaced by a suitable tubingand/or wick to deliver the cis-4-undecenal passively through capillary forces or evaporation.The pump 20 receives power from a battery 22, said power being routed through a relay 24controlled by a control device 26. The control device 26 is configured to close the relay 24at specific times, for example at specific timer intervals, to thereby selectively actuate the pump 20 in order to dispense the cis-4-undecenal.
Fig. 3C shows an alternative dispenser 10' comprising a semipermeable wall 12' definingan interior volume 14f_ in which cis-4-undecenal 16' is provided. Cis-4-undecenalcontinuously permeates through the wall 12' to reach the outer side 28' thereof, fromwhich the cis-4-undecenal evaporates. The alternative dispenser 10' thus dispenses thecis-4-undecenal only passively and spontaneously, in contrast to the dispenser 10 in which dispensing may be controlled by the control device 26.
Although figs 3A-3C refers to cis-4-undecenal as being used in the respective dispenser, a precursor yielding cis-4-undecenal through autoxidation could be used instead.
Feasible modifications The technology proposed herein is not limited only to the embodiments described aboveand shown in the drawings, which primarily have an illustrative and exemplifying purpose.This patent application is intended to cover all adjustments and variants of the preferredembodiments described herein, thus the present invention is defined by the wording of theappended claims and the equivalents thereof. Thus, the equipment may be modified in allkinds of ways within the scope of the appended claims.
For instance, it shall be pointed out that structural aspects of embodiments of the methodaccording to the first aspect of the technology proposed herein shall be considered to beapplicable to embodiments of the system according to the second aspect of thetechnology proposed herein, and conversely, methodical aspects of embodiments of the system according to the second aspect of the technology proposed herein shall be 14 considered to be applicable to embodiments of the method according to the first aspect ofthe technology proposed herein. lt shall also be pointed out that all information about/concerning terms such as above,under, upper, lower, etc., shall be interpreted/read having the equipment orientedaccording to the figures, having the drawings oriented such that the references can beproperly read. Thus, such terms only indicate mutual relations in the shown embodiments,which relations may be changed if the inventive equipment is provided with anotherstructure/design. lt shall also be pointed out that even though it is not explicitly stated that features from aspecific embodiment may be combined with features from another embodiment, thecombination shall be considered obvious, if the combination is possible.
Throughout this specification and the claims which follows, unless the context requiresotherwise, the word “comprise", and variations such as “comprises” or “comprising”, willbe understood to imply the inclusion of a stated integer or steps or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
Claims (14)
1. A method of deterring Drosophila suzukii, comprising providing an effective dose of cis- 4-undecenal at a location from which Drosophila suzukii should be deterred.
2. The method according to claim 1, wherein deterring Drosophila suzukii comprises or consists of deterring Drosophila suzukii from ovipositioning at or in the location.
3. The method according to any preceding claim, wherein cis-4-undecenal is provided atthe location, or alternatively wherein a precursor yielding cis-4-undecenal throughautoxidation is provided at the location, the precursor preferably being a (Z,Z,Z)-7,11,15-triene, such as (Z,Z,Z)-7,11,15-docosatriene, or a (Z,Z)-7,11 diene such as (Z,Z)-7,11- octadecadiene or (Z,Z)-7,11-heptacosadiene.
4. The method according to any preceding claim, wherein the method comprises deterringDrosophila suzukii from fruits provided at the location, the fruits preferably being selectedfrom the group consisting of strawberries, cherries, blueberries, raspberries, blackberries, peaches, nectarines, apricots, kiwi, and grapes.
5. The method according to any preceding claim, wherein the cis-4-undecenal is providedat a dose of at least 0.1 ng cis-4-undecenal per g fruits, preferably at least 0.5 ng cis-4- undecenal per g fruits, more preferably at least 1 ng cis-4-undecenal per g fruits.
6. The method according to any preceding claim, wherein the cis-4-undecenal is providedat a dose of at least 0.7 pg cis-4-undecenal per m2 of fruit surface area, preferably at least3.5 pg cis-4-undecenal per m2 of fruit surface area, more preferably at least 7 pg cis-4- undecenal per m2 of fruit surface area.
7. The method according to any of the claims 3-6, wherein the cis-4-undecenal or theprecursor is applied, such as by spraying or dipping, in or at the location, or alternatively or additionally, wherein the cis-4-undecenal or the precursor is provided ina dispenser arranged at the location, the dispenser being configured to release the cis-4-undecenal or the precursor, or alternatively or additionally, wherein the cis-4-undecenal or the precursor is provided bybeing synthesized by a plant or microorganism, more preferably a yeast or other microorganism, provided at the location, the genome of the plant or microorganism comprising a gene causing the plant to produce and release cis-4-undecenal or the precursor.
8. A deterrent composition for deterring Drosophila suzukii, the deterrent compositioncomprising cis-4-undecenal or a precursor yielding cis-4-undecenal through autoxidation,dissolved in a solvent, wherein the precursor preferably is a (Z,Z,Z)-7,11,15-triene, suchas (Z,Z,Z)-7,11,15-docosatriene, or a (Z,Z)-7,11-diene such as (Z,Z)-7,11-octadecadieneor (Z,Z)-7,11-heptacosadiene.
9. The deterrent composition according to claim 8, wherein the solvent is selected fromthe group consisting of ethanol, acetone, benzene, carbon tetrachloride, diethyl ether, ethylene glycol, polyethylene glycol, glycerol, nitromethane, pyridine, and toluene, andwherein, preferably, the deterrent composition further comprises a viscosity-increasing compound, which when included in the deterrent composition increases the viscosity of the deterrent composition, and wherein more preferably the deterrent composition is solid.
10. The deterrent composition according to claim any of the claims 8-9, whereincomposition comprises at least 0.1 mg/liter, preferably at least 0.5 mg/liter, morepreferably at least 1 mg/liter of cis-4-undecenal, or alternatively, wherein the composition comprises an amount of the precursor that, uponautoxidation, yields at least 0.1 mg/liter, preferably at least 0.5 mg/liter, more preferably at least 1 mg/liter of cis-4-undecenal.
11. A device for deterring Drosophila suzukii, the device comprising or releasing cis-4-undecenal or a precursor yielding cis-4-undecenal through autoxidation, wherein theprecursor preferably is a (Z,Z,Z)-7,11,15-triene, such as (Z,Z,Z)-7,11,15-docosatriene, ora (Z,Z)-7,11 diene such as (Z,Z)-7,11-octadecadiene or (Z,Z)-7,11-heptacosadiene.
12. The device according to claim 11, wherein the device comprises or releases deterrent composition according to any of the claims 8-10.
13. The device according to any or the claims 11-12, wherein the device comprises a dispenser configured to release the cis-4-undecenal or the precursor as vapor or gas.
14. The device according to claim 13, wherein the dispenser comprises a solid carrier in which the cis-4-undecenal or the precursor is incorporated by adsorption or absorption.
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| PCT/SE2021/050638 WO2021262080A1 (en) | 2020-06-26 | 2021-06-28 | Deterrent composition and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2931054A1 (en) * | 2013-11-18 | 2015-05-21 | 0903608 B.C. Ltd. | Compositions, devices and methods for control of pests using vapor activity |
| CN105707114A (en) * | 2016-04-18 | 2016-06-29 | 山东省农业科学院植物保护研究所 | Pesticide composition used for preventing and controlling Drosophila suzukii and preparation method thereof |
| US9629362B1 (en) * | 2016-01-05 | 2017-04-25 | The United States Of America, As Represented By The Secretary Of Agriculture | Methods for killing insects using methyl benzoate |
| EP3457846A1 (en) * | 2016-05-30 | 2019-03-27 | Globachem NV | Use of 9-tricosene to control drosophila suzukii |
| EP3488695A1 (en) * | 2017-11-22 | 2019-05-29 | Fundació Centre de Regulació Genòmica | Pesticide compositions |
-
2020
- 2020-06-26 SE SE2050773A patent/SE544112C2/en not_active IP Right Cessation
-
2021
- 2021-06-28 WO PCT/SE2021/050638 patent/WO2021262080A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2931054A1 (en) * | 2013-11-18 | 2015-05-21 | 0903608 B.C. Ltd. | Compositions, devices and methods for control of pests using vapor activity |
| US9629362B1 (en) * | 2016-01-05 | 2017-04-25 | The United States Of America, As Represented By The Secretary Of Agriculture | Methods for killing insects using methyl benzoate |
| CN105707114A (en) * | 2016-04-18 | 2016-06-29 | 山东省农业科学院植物保护研究所 | Pesticide composition used for preventing and controlling Drosophila suzukii and preparation method thereof |
| EP3457846A1 (en) * | 2016-05-30 | 2019-03-27 | Globachem NV | Use of 9-tricosene to control drosophila suzukii |
| EP3488695A1 (en) * | 2017-11-22 | 2019-05-29 | Fundació Centre de Regulació Genòmica | Pesticide compositions |
Non-Patent Citations (3)
| Title |
|---|
| Carballeira, N. M. et al. 'Facile syntheses for (5Z, 9Z)-5, 9-hexadecadienoic acid, (5Z, 9Z)-5, 9-nonadecadienoic acid, and (5Z, 9Z)-5, 9-eicosadienoic acid through a common synthetic route'. In: Chem Phys Lip 1999, Vol 100, pp. 33-40 * |
| Dam ,D. et al. 'Natural compounds for controlling Drosophila suzukii. A review'. in: Agron. Sustain. Dev. 2019, 39:53, pp. 1-17. * |
| Lebreton, S. et al. 'A Drosophila female pheromone elicits species-specific long-range attraction via an olfactory channel with dual specificity for sex and food'. In: BMC Biology 2017, 15:88 * |
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| WO2021262080A1 (en) | 2021-12-30 |
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