AU2021236588B2 - Sarmentine-containing herbicidal composition and application thereof - Google Patents
Sarmentine-containing herbicidal composition and application thereof Download PDFInfo
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- AU2021236588B2 AU2021236588B2 AU2021236588A AU2021236588A AU2021236588B2 AU 2021236588 B2 AU2021236588 B2 AU 2021236588B2 AU 2021236588 A AU2021236588 A AU 2021236588A AU 2021236588 A AU2021236588 A AU 2021236588A AU 2021236588 B2 AU2021236588 B2 AU 2021236588B2
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- sarmentine
- clomeprop
- herbicidal composition
- defoamer
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- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
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- 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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
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Abstract
Disclosed is a sarmentine-containing herbicidal composition and use thereof, wherein the
5 composition includes a sarmentine and a clomeprop at a weight ratio of (1:2)-(8:1); the sarmentine
is a plant-derived herbicide, having low toxicity and being environmentally friendly; in the present
invention, it is found that the compound of sarmentine and clomeprop has a synergistic effect, and
the combined use of the two cures the deficiency that clomeprop has a poor prevention and control
effect on Gramineae weedswhile the sarmentine has a poor prevention and control effect on
10 Cyperaceae weeds; moreover, the compound can delay a weed resistance, and has a high control
efficiency and a broad-spectrum activity. The combined use of the sarmentine and the clomeprop
shows an herbicidal effect superior to that achieved by using sarmentine or clomeprop alone, which
leads to a decrease in an amount of the herbicide used, thereby reducing an adverse effect of
agrochemicals on the environment.
15
19
Description
The present invention belongs to a technical field of agrochemicals, in particular to a
sarmentine-containing herbicidal composition and use thereof.
Weeds compete with crops for nutrients, water, and light, which affects a crop production, so if
the weeds are not controlled, a decrease in crop yield will occur. At present, Chemicals are
generally used to prevent and control agricultural weeds. Chemical herbicides have become the
most reliable and cheapest way to prevent and control weeds in the crop production, however, an
unreasonable long-term use of large amounts of a single chemical herbicide has led to an increase in
the resistance level of the weeds; meanwhile, the continuously increased input of herbicides
produces an adverse impact on environment and soils.
Sarmentine acts as a contact herbicide that is environmentally friendly with a broad-spectrum
activity, which inhibits photosystem II (PSII) by competing for a binding site of plastoquinone to
interfere with photosynthesis, and inhibits the activity of enoyl-acyl carrier protein (ACP) reductase
(ENR) to interfere with fatty acid synthesis, so that a plant loses an integrity of plasma membrane,
and a plant death eventually occurs. Sarmentine is effective in controlling annual or perennial
dicotyledons and Gramineae weeds, but has a poor prevention and control effect on Cyperus
rotundus L. and other Cyperaceae resistant weeds. Provided in a patent CN105072901A are an
herbicidal composition and use method thereof, which provides a method of selectively controlling
or changing bluegrass growth in cold-season turfgrass by using a composition containing
sarmentine and/or its analog while avoiding an obvious damage to the turfgrass. The composition prevents and controls bluegrasses of Gramineae weeds, but the patent does not mention the prevention and control effect on Cyperaceae weeds.
Currently, there is a lack of research associated with sarmentine compositions, and
composition of sarmentine with other drugs for preventing and controlling Cyperaceae resistant
weeds has not yet been reported.
In view of the shortcomings in the prior art, provided is a sarmentine-containing herbicidal
composition and use thereof in the present invention, so as to solve the above-mentioned problem.
Technical solutions of the present invention are as follows:
The sarmentine-containing herbicidal composition includes sarmentine and clomeprop at a
weight ratio of (1:2)-(8:1).
Preferably, a weight ratio of the sarmentine to the clomeprop is (8:1)-(8:4), which shows an
optimal prevention and control effect on Cyperus rotundus L..
Preferably, a weight ratio of the sarmentine to the clomeprop is 1:1, which shows an optimal
prevention and control effect on Echinochloa crusgalli (L.) Beauv.
Further, provided is an herbicide containing the herbicidal composition, and a total mass
content of the sarmentine and the clomeprop in the herbicide is 10-80%.
The herbicide of the present invention can be combined with auxiliary agents using
conventional methods into a variety of common agrochemical formulations, such as a water
dispersible granule, a wettable powder, and a suspending agent.
Preferably, the herbicide is the water dispersible granule that includes the following
ingredients in weight percentages below: 8-75% of sarmentine, 3-15% of clomeprop, 2-3% of a
wetting agent, 3-7% of a dispersant, 5-6% of a disintegrant, 0%-1% of an adhesive, 0.2-0.5% of a defoamer, and a balance of a carrier.
Preferably, the herbicide is the wettable powder that includes the following ingredients in
weight percentages: 8-50% of sarmentine, 1-24% of clomeprop, 2-3% of the wetting agent, 6-8% of
the dispersant, 0.2-0.8% of the defoamer, and the balance of the carrier.
Preferably, the herbicide is a water suspending agent that includes the following ingredients in
weight percentages: 10-15% of sarmentine, 2-5% of clomeprop, 2% of the wetting agent, 5-7% of
the dispersant, 5% of an antifreeze agent, 0.4-0.5% of a thickening agent, 0.5% of a preservative,
0.2-0.5% of the defoamer, and the balance of water.
Preferably, the herbicide is an oil suspending agent that includes the following ingredients in
weight percentages: 5-33% of sarmentine, 5-11% of clomeprop, 0-8% of an emulsifier, 2-8% of the
wetting agent, 2 -7 % of the dispersant, 2- 4 % of a stabilizer, 0. 2 -0. 5 % of the defoamer, and the
balance of a solvent.
The emulsifier includes, but is not limited to, one or more of an ethylene oxide-propylene
oxide (EO-PO) block copolymer, dodecylbenzene sulfonate, sodium nonylphenol polyoxyethylene
ether phosphate, Tween series, Span series, castor oil-based phosphate, styrylphenol
polyoxyethylene ether, alkyl phenol formaldehyde resin polyoxyethylene ether, triethanolamine
nonylphenol polyoxyethylene ether sulfate, alkyl phenol polyoxyethylene ether (APEO),
nonylphenol polyoxyethylene ether phosphate ester, and nonylphenol polyoxyethylene ether.
The wetting agent includes, but is not limited to, one or more of sodium lauryl sulfate, sodium
dodecylbenzene sulfonate, sodium petroleum sulfonate, mixed alcohol polyoxyethylene ether,
Chinese honey locust fruit powder, fatty alcohol sulfate, silkworm excrement, low-viscosity
methylcellulose, Nekal (sodium dibutylnaphthalenesulphonate), alkyl sulfate, and GY-W04
(Beijing Guangyuan Yinong Chemical Co., Ltd.).
The dispersant includes, but is not limited to, one or more of naphthalene sulfonic acid
formaldehyde condensate, lignosulfonate, sodium methylene bis-naphthalene sulfonate, octylphenol
polyoxyethylene ether sulfate, alkyl phenol polyoxyethylene ether, fatty amine polyoxyethylene
ether, arylphenol polyoxyethylene succinate sulfonate, alkylnaphthalene sulfonate, alkylbenzene
sulfonate, polycarboxylate, alkenyl sulfonate, fatty acid polyoxyethylene ether, alkyl-aryl
polyoxyethylene ether, fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether
sulfate formaldehyde condensate, GY-D1O (Beijing Guangyuan Yinong Chemical Co., Ltd.), and
GY-D800 (Beijing Guangyuan Yinong Chemical Co., Ltd.).
The adhesive includes, but is not limited to, one or more of polyvinyl alcohol, methylcellulose,
vinyl pyrrolidone, sucrose, starch, and soluble starch.
The disintegrant includes, but is not limited to, one or more of sodium carbonate, sodium
bicarbonate, ammonium sulfate, sodium carboxymethyl cellulose, glucose, urea, and aluminum
chloride.
The defoamer includes, but is not limited to, one or more of polyether, polysiloxane, silicone,
an organosilicone defoamer, multi-carbon alcohol, capric acid, silicone oil, and tributyl phosphate.
The carrier includes, but is not limited to, one or more of bentonite, diatomaceous earth, light
calcium carbonate, kaolin, attapulgite, and white carbon black.
The preservative includes, but is not limited to, one or more of sodium benzoate, potassium
sorbate, and isothiazolinone.
The antifreeze agent includes, but is not limited to, one or more of glycerol, ethylene glycol,
propylene glycol, polyethylene glycol, and isopropanol.
The thickening agent includes, but is not limited to, one or more of xanthan gum,
aluminum-magnesium silicate, modified bentonite, alginate, carboxymethyl cellulose, hydroxypropyl cellulose, sodium polyacrylate, polyacrylamide, and polyvinylpyrrolidon.
The stabilizer includes, but is not limited to, one or more of organic acid, organic base, ester,
alcohol, organic bentonite, tall oil, attapulgite, white carbon black, epoxy chloropropane, and urea.
The solvent includes, but is not limited to, one or more of methyl oleate, soybean oil, corn oil,
tea oil, rapeseed oil, vegetable oil ester, and mineral oil.
In another aspect, provided is a use of the herbicidal composition in the prevention and control
of the weeds, the weeds include a Cyperaceae plant and a Gramineae plant. The Cyperaceae plant
includes weeds such as resistant Cyperus rotundus L., Cyperus difformis L., and Eleocharis
acicularis. The Gramineae plant includes weeds such as Echinochloa crusgalli (L.) Beauv and
Chloris virgata Sw..
The present invention has the following advantages:
In the present invention, extensive experiments have been conducted to confirm that the
compounding of sarmentine with clomeprop at a range of (1:2)-(8:1) achieves a synergistic effect.
A combined use of the two cures the deficiency that clomeprop has poor prevention and control
effect on Gramineae weeds and sarmentine has poor prevention and control effect on Cyperaceae
weeds; it has a high control efficiency and broad-spectrum activity, meanwhile, it is capable of
delaying a weed resistance with a low amount of the composition and thus environmentally friendly,
which is of great significance for the comprehensive control of weeds (especially resistant weeds).
In order to facilitate a better understanding of the technical contents of the present invention,
specific embodiments are provided below to further illustrate the present invention.
EO-PO block copolymer described in the embodiments of the present invention is a polymer
surfactant, which is usually obtained by performing an addition polymerization on polypropylene oxide (PO) and ethylene oxide (EO) under a catalysis of alkali and using an active hydrogen-containing compound such as propylene glycol as an initiator. Those used in the embodiments of the present invention are commercial products.
Embodiment 1: herbicidal composition in a form of water dispersible granule and containing
15% of sarmentine and clomeprop (4:1)
A sarmentine- and clomeprop-containing herbicidal composition in a form of water dispersible
granule includes the following ingredients in weight percentages: 12% of sarmentine, 3% of
clomeprop, 2% of sodium dodecyl sulfate, 7% of alkylnaphthalene sulfonate, 6% of sodium
carbonate, 1% of methylcellulose, 0.3% of an organosilicone defoamer, and the balance of kaolin.
The water dispersible granule is prepared by conventional methods.
Embodiment 2: herbicidal composition in the form of water dispersible granule and
containing 33% of sarmentine and clomeprop (8:3)
A sarmentine- and clomeprop-containing herbicidal composition in the form of water
dispersible granule includes the following ingredients in weight percentages: 24% of sarmentine,
9% of clomeprop, 3% of sodium lauryl sulfate, 7% of naphthalene sulfonic acid formaldehyde
condensate, 5% of sodium bicarbonate, 1% of methylcellulose, 0. 2 % of a polyether defoamer, and
the balance of kaolin, the water dispersible granule is prepared by the conventional methods.
Embodiment 3: herbicidal composition in the form of water dispersible granule and
containing 45% of sarmentine and clomeprop (4:1)
A sarmentine- and clomeprop-containing herbicidal composition in a form of water dispersible
granule includes the following ingredients in weight percentage: 36% of sarmentine, 9% of
clomeprop, 2% of sodium dodecylbenzene sulfonate, 7% of naphthalene sulfonic acid
formaldehyde condensate, 5% of sodium bicarbonate, 1% of methylcellulose, 0. 2 % of a polyether defoamer, and the balance of light calcium carbonate. The water dispersible granule is prepared by conventional methods.
Embodiment 4: herbicidal composition in a form of water dispersible granule and containing
60% of sarmentine and clomeprop (3:1)
A sarmentine- and clomeprop-containing herbicidal composition in a form of water dispersible
granule includes the following ingredients in weight percentage: 45% of sarmentine, 15% of
clomeprop, 2% of mixed alcohol polyoxyethylene ether, 7% of lignosulfonate, 5% of ammonium
sulfate, 1% of soluble starch, 0. 3 % of a multi-carbon alcohol defoamer, and the balance of bentonite.
The water dispersible granule is prepared by the conventional methods.
Embodiment 5: herbicidal composition in the form of water dispersible granule and
containing 80% of sarmentine and clomeprop (15:1)
A sarmentine- and clomeprop-containing herbicidal composition in the form of water
dispersible granule includes the following ingredients in weight percentages: 75% of sarmentine,
5% of clomeprop, 2% of mixed alcohol polyoxyethylene ether, 7% of naphthalene sulfonic acid
formaldehyde condensate, 5% of sodium bicarbonate, 1% of methylcellulose, 0.5% of an
organosilicone defoamer, and the balance of kaolin. The water dispersible granule is prepared by
the conventional methods.
Embodiment 6: herbicidal composition in the form of water dispersible granule and
containing 64% of sarmentine and clomeprop (7:1)
A sarmentine- and clomeprop-containing herbicidal composition in the form of water
dispersible granule includes the following ingredients in weight percentages: 56% of sarmentine,
8% of clomeprop, 3% of sodium dodecylbenzene sulfonate, 7% of alkylnaphthalene sulfonate, 5%
of sodium carbonate, 1% of methylcellulose, 0.5% of an organosilicone defoamer, and the balance of bentonite. The water dispersible granule is prepared by the conventional methods.
Embodiment 7: herbicidal composition in a form of wettable powder and containing 11% of
sarmentine and clomeprop (8:3)
A sarmentine- and clomeprop-containing herbicidal composition in a form of wettable powder
includes the following ingredients in weight percentages: 8% of sarmentine, 3% of clomeprop, 2%
of sodium dodecylbenzene sulfonate, 7% of fatty amine polyoxyethylene ether, 0.2% of an
organosilicone defoamer, and the balance of diatomaceous earth. The wettable powder is prepared
by conventional methods.
Embodiment 8: herbicidal composition in the form of wettable powder and containing 20%
of sarmentine and clomeprop (19:1)
A sarmentine- and clomeprop-containing herbicidal composition in the form of wettable
powder includes the following ingredients in weight percentages: 19% of sarmentine, 1% of
clomeprop, 2% of low-viscosity methylcellulose, 7% of fatty amine polyoxyethylene ether, 0.3% of
an organosilicone defoamer, and the balance of kaolin; the wettable powder is prepared by the
conventional methods.
Embodiment 9: herbicidal composition in the form of wettable powder and containing 42%
of sarmentine and clomeprop (6:1)
A sarmentine- and clomeprop-containing herbicidal composition in the form of wettable
powder includes the following ingredients in weight percentages: 36% of sarmentine, 6% of
clomeprop, 3% of sodium lauryl sulfate, 7% of naphthalene sulfonic acid formaldehyde condensate,
0.3% of a multi-carbon alcohol defoamer, and the balance of light calcium carbonate; the wettable
powder is prepared by the conventional methods.
Embodiment 10: herbicidal composition in the form of wettable powder and containing 55% of sarmentine and clomeprop (3:2)
A sarmentine- and clomeprop-containing herbicidal composition in the form of wettable
powder includes the following ingredients in weight percentages: 33% of sarmentine, 22% of
clomeprop, 2% of mixed alcohol polyoxyethylene ether, 7% of alkylnaphthalene sulfonate, 0.2% of
a polyether defoamer, and the balance of bentonite; the wettable powder is prepared by the
conventional methods.
Embodiment 11: herbicidal composition in the form of wettable powder and containing 63%
of sarmentine and clomeprop (2:1)
A sarmentine- and clomeprop-containing herbicidal composition in the form of wettable
powder includes the following ingredients in weight percentages: 42% of sarmentine, 21% of
clomeprop, 3% of sodium lauryl sulfate, 8% of lignosulfonate, 0.3% of a polysiloxane defoamer,
and the balance of kaolin; the wettable powder is prepared by the conventional methods.
Embodiment 12: herbicidal composition in the form of wettable powder and containing 70%
of sarmentine and clomeprop (5:2)
A sarmentine- and clomeprop-containing herbicidal composition in the form of wettable
powder includes the following ingredients in weight percentages: 50% of sarmentine, 20% of
clomeprop, 3% of GY-W04, 6% of GY-D1, 0. 3 % of a silicone defoamer, and the balance of kaolin;
the wettable powder is prepared by conventional methods.
Embodiment 13: herbicidal composition in a form of wettable powder and containing 80% of
sarmentine and clomeprop (3:2)
A sarmentine- and clomeprop-containing herbicidal composition in a form of wettable powder
includes the following ingredients in weight percentage: 48% of sarmentine, 32% of clomeprop, 3%
of Nekal, 8% of lignosulfonate, 0.8% of a polyether defoamer, and the balance of bentonite, the wettable powder is prepared by conventional methods.
Embodiment 14: herbicidal composition in a form of water suspending agent and containing
12% of sarmentine and clomeprop (5:1)
A sarmentine- and clomeprop-containing herbicidal composition in a form of water suspending
agent includes the following ingredients in weight percentages: 10% of sarmentine, 2% of
clomeprop, 2% of alkyl sulfate, 5% of polycarboxylate, 0.2% of a polysiloxane defoamer, 0.5% of
potassium sorbate, 5% of propylene glycol, 0.4% of xanthan gum, and the balance of water. The
water suspending agent is prepared by conventional methods.
Embodiment 15: herbicidal composition in the form of water suspending agent and
containing 20% of sarmentine and clomeprop (3:1)
A sarmentine- and clomeprop-containing herbicidal composition in the form of water
suspending agent includes the following ingredients in weight percentage: 15% of sarmentine, 5%
of clomeprop, 2% of EO-PO block copolymer, 7% of alkylbenzene sulfonate, 0.5% of a
polysiloxane defoamer, 0.5% of sodium benzoate, 5% of ethylene glycol, 0.5% of
aluminum-magnesium silicate, and the balance of water. The water suspending agent is prepared by
the conventional methods.
Embodiment 16: herbicidal composition in a form of oil suspending agent and containing
10% of sarmentine and clomeprop (1:1)
A sarmentine- and clomeprop-containing herbicidal composition in a form of oil suspending
agent includes the following ingredients in weight percentage: 5% of sarmentine, 5% of clomeprop,
2% of EO-PO block copolymer, 8% of sodium nonylphenol polyoxyethylene ether phosphate, 3%
of alkylbenzene sulfonate, 2% of organic bentonite, 0.2% of capric acid, and the balance of methyl
oleate, the oil suspending agent is prepared by conventional methods.
Embodiment 17: herbicidal composition in the form of oil suspending agent and containing
44% of sarmentine and clomeprop (3:1)
A sarmentine- and clomeprop-containing herbicidal composition in the form of oil suspending
agent includes the following ingredients in weight percentage: 33% of sarmentine, 11% of
clomeprop, 2% of fatty alcohol sulfate, 8% of sodium dodecylbenzene sulfonate, 2% of
alkylbenzene sulfonate, 4% of organic bentonite, 0.5% of silicone oil, and the balance of soybean
oil, the oil suspending agent is prepared by the conventional methods.
Experimental example 1: Indoor toxicity test of the composition of sarmentine and
clomeprop
Target weeds: Cyperus rotundus L., Echinochloa crusgalli(L.) Beauv
A test method: Under greenhouse conditions (25-30 ), the test is carried out through an indoor
pot experiment. Soaked target weed seeds are scattered evenly into flower pots, followed by
covering the flower pots with soils, and regularly replenishing water to maintain a soil moisture,
then a cultivation is performed under the greenhouse conditions, and 20-25 strong seedlings are
kept after growing. The stems and leaves of the target weed Cyperus rotundus L. at a 3-4 leaf stage
and Echinochloa crusgalli (L.) Beauv at a 2-3 leaf stage are sprayed. Three treatments using
sarmentine are set with effective amounts of 400 g/ha, 800 g/ha, and 1600 g/ha, respectively; three
treatments using clomeprop are set with effective amounts of 200 g/ha, 400 g/ha, and 800 g/ha,
respectively; nine treatments using the combination of sarmentine and clomeprop are set with
effective amounts of (400+200) g/ha, (400+400) g/ha, (400+800) g/ha, (800+200) g/ha, (800+400)
g/ha, (800+800) g/ha, (1600+200) g/ha, (1600+400) g/ha, (1600+800) g/ha, respectively; four
repetitions are set for each treatment, and a blank control is additionally set. After the treatments,
the target weeds are placed in a greenhouse for cultivation, and their growth is regularly observed;
15 days after the treatment, a fresh weight of the weeds on the ground is weighed, and a fresh
weight inhibition rate (%) is used to evaluate toxic effects of agents on the target weeds.
Fresh weight inhibition rate P (%)
Fresh weight of blank control - Fresh weight of treatment x100 Freshweight of blank control
Method for evaluating a joint effect:
A Gowing Method is used to evaluate the joint effect of the herbicides, and a formula is as
follows:
Ea=X+Y-XY/100
X is the fresh weight inhibition rate of herbicide A on target weed; Y is the fresh weight
inhibition rate of herbicide B on the target weed;
Ea is the theoretical value of the fresh weight inhibition rate of the compositions of single
herbicide A and single herbicide B on the target weed;
E is the measured value of the fresh weight inhibition rate of the compositions of single
herbicide A and single herbicide B on the target weed.
Evaluation criteria: when E-Ea>10%, it shows a synergistic effect, when -10%<E-Ea<10%, it
shows an additive effect, and when E-Ea<-10%, it shows an antagonistic effect.
Test results:
Table 1. Results of joint toxicity test of sarmentine, clomeprop, and the compositions of
sarmentine and clomeprop on Cyperus rotundus L.
Content of active Measured control Theoretical control E-EO Evaluation of
Drug Name ingredient (g/ha) efficiency E(%) efficiencyFEo) (%) joint effect
400 20.48
Sarmentine 800 26.76
1600 33.34
200 37.21
Clomeprop 400 54.35
800 68.98
Sarmentine + Synergistic
Clomeprop 400+200 63.42 50.07 13.35 effect
Sarmentine + Synergistic
Clomeprop 400+400 76.07 63.70 12.37 effect
Sarmentine + Synergistic
Clomeprop 400+800 86.92 75.33 11.59 effect
Sarmentine + Synergistic
Clomeprop 800+200 70.55 54.02 16.54 effect
Sarmentine + Synergistic
Clomeprop 800+400 80.60 66.57 14.03 effect
Sarmentine + Synergistic
Clomeprop 800+800 89.69 77.28 12.41 effect
Sarmentine + Synergistic
Clomeprop 1600+200 81.12 58.14 22.97 effect
Sarmentine + Synergistic
Clomeprop 1600+400 87.53 69.57 17.96 effect
Sarmentine +
Synergistic Clomeprop 1600+800 97.13 79.32 17.81 effect
Table 2. Results of joint toxicity test of sarmentine, clomeprop, and the compositions of sarmentine
and clomeprop on Echinochloa crusgalli (L.) Beauv
Theoretical
Content of active Measured control control E-EO Evaluation of
Drug Name ingredient (g/ha) efficiency E (%) efficiencyFEo) (%) joint effect 400 41.45
Sarmentine 800 55.98
1600 81.01
200 13.10
Clomeprop 400 17.32
800 28.56
Sarmentine
+ Synergistic
Clomeprop 400+200 60.53 49.12 11.40 effect
Sarmentine + Synergistic
Clomeprop 400+400 69.31 51.59 17.71 effect
Sarmentine + Synergistic
Clomeprop 400+800 75.37 58.17 17.20 effect
Sarmentine + Synergistic
Clomeprop 800+200 80.10 61.75 18.35 effect
Sarmentine + Synergistic
Clomeprop 800+400 85.17 63.61 21.56 effect
Sarmentine
+ Synergistic
Clomeprop 800+800 91.83 68.55 23.28 effect
Sarmentine
+ Synergistic
Clomeprop 1600+200 95.09 83.50 11.59 effect
Sarmentine
+ Synergistic
Clomeprop 1600+400 95.41 84.30 11.11 effect
Sarmentine
+ Synergistic
Clomeprop 1600+800 97.56 86.43 11.12 effect
The results show that compositions of sarmentine and clomeprop respectively with the
amounts of 400+200, 400+400, 400+800, 800+200, 800+400, 800+800, 1600+200, 1600+400,
1600+800 have higher measured control efficiencies on Cyperus rotundus L. and Echinochloa
crusgalli (L.) Beauv than their theoretical control efficiencies, moreover, E-Eo>10%, which means
that sarmentine and clomeprop at the weight ratio of (1:2)-(8:1) show an obvious synergistic effect.
Experimental example 2: Efficacy test of the compositions of sarmentine and clomeprop on
weeds in a field:
Control objects: common weeds that appear in the field, including: Cyperus rotundus L.,
Cyperus difformis L., Echinochloa crusgalli (L.) Beauv, and Chloris virgata Sw..
Test agents: sarmentine in the form of wettable powder (1200 g/ha), clomeprop in the form of
wettable powder (500 g/ha), the herbicidal compositions of Embodiments 1-3 and 5 in the form of
water dispersible granule (1200 g/ha), the herbicidal compositions of Embodiments 8, 9, 11, and 13
in the form of wettable powder (1200 g/ha), the herbicidal composition of Embodiment 15 in the
form of water suspending agent (1200 g/ha), and the herbicidal composition of Embodiment 16 in
the form of oil suspending agent (1200 g/ha);
The test is carried out in different plots of a field with a high density of weeds; each plot is 20
m2, and the weeds are administrated with drugs at the 3-4 leaf stage, in which the drugs are evenly
mixed with water for spraying the stems and leaves. Before spraying, the numbers of the four weeds,
i.e., Cyperus rotundus L., Cyperus difformis L., Echinochloa crusgalli (L.) Beauv, and Chloris
virgata Sw., are counted; 14 days after spraying, the numbers of the four weeds are counted. The
control efficiency is calculated according to the following formula:
Control efficiency (%)=1-(number of weeds after drug administration+number of weeds
before drug administration)X 100%
Table 3. Efficacy test of the compositions of sarmentine and clomeprop on weeds in the field
Content of Control efficiency(%)
active Drug Name Cyperus Cyperus Echinochloa crusgalli Chloris ingredient rotundus L. difformis L. (L.) Beauv virgata Sw. (g/ha)
Sarmentine 1200 27.64 31.18 86.23 82.47
Clomeprop 500 83.76 81.57 20.19 18.76
Embodiment 1 1200 92.12 93.78 95.35 94.16
Embodiment 2 1200 98.52 97.83 98.14 97.59
Embodiment 3 1200 98.47 98.63 99.36 99.45
Embodiment 5 1200 94.61 95.42 100.00 100.00
Embodiment 8 1200 90.74 91.32 95.83 96.14
Embodiment 9 1200 96.35 96.47 99.57 98.93
Embodiment 11 1200 100.00 99.37 99.67 99.74
Embodiment 13 1200 100.00 100.00 99.53 98.74
Embodiment 15 1200 94.33 94.16 95.71 94.87
Embodiment 16 1200 97.84 98.16 97.42 96.16
Field test results show that the compound agents of sarmentine and clomeprop at different
ratios have significant prevention and control effects on Gramineae weeds and Cyperaceae weeds,
and are remarkably superior to a single use of the two. The combined use of the two solves the
problems of field malignant weeds including Cyperus rotundus L., Cyperus difformis L.,
Echinochloa crusgalli (L.) Beauv, and Chloris virgata Sw..
In summary, the compositions of the present invention are reasonable, thus obtaining the
control efficiencies superior to that achieved by single use of each ingredient, having the advantages
of delaying the weed resistance, enhancing the broad-spectrum activity, and being safe to crops,
which is in line with policy guidelines for agrochemical application such as high efficiency, safety,
and high selection.
The above descriptions are only the preferred embodiments of the present invention, and are
not intended to limit the present invention; any modification, equivalent replacement, improvement,
etc. made within the spirit and principle of the present invention shall be included within the
protection scope of the present invention.
Claims (3)
1. A herbicide containing a sarmentine and a clomeprop at a weight ratio of (1:2)-(8:1);
and wherein a total mass content of the sarmentine and the clomeprop in the herbicide is
10-80%; and wherein
a formulation of the herbicide comprises a water dispersible granule, a wettable powder, a
water suspending agent, and an oil suspending agent; and wherein
the water dispersible granule comprises the following ingredients in weight percentages:
8-75% of the sarmentine, 3-15% of the clomeprop, 2-3% of a wetting agent, 3-7% of a
dispersant, 5-6% of a disintegrant, 0%-1% of an adhesive, 0.2-0.5% of a defoamer, and a
balance of a carrier; and wherein
the wettable powder comprises the following ingredients in weight percentages: 8-50% of
the sarmentine, 1-24% of the clomeprop, 2-3% of the wetting agent, 6-8% of the dispersant,
0.2-0.8% of the defoamer, and the balance of the carrier; and wherein
the water suspending agent comprises the following ingredients in weight percentages:
10-15% of the sarmentine, 2-5% of the clomeprop, 2% of the wetting agent, 5-7% of the
dispersant, 5% of an antifreeze agent, 0.4-0.5% of a thickening agent, 0.5% of a
preservative, 0.2-0.5% of the defoamer, and the balance of a water; the oil suspending
agent comprises the following ingredients in weight percentages: 5-33% of sarmentine,
5-11% of clomeprop, 0-8% of an emulsifier, 2-8% of the wetting agent, 2-7% of the
dispersant, 24% of a stabilizer, 0.2-0.5% of the defoamer, and the balance of the solvent.
2. A use of the herbicidal composition according to claim 1 in a prevention and a control of a weed, wherein the weed comprises a Cyperaceae plant and/or a Gramineae plant.
3. The use according to claim 2, wherein the Cyperaceae plant comprises a Cyperus rotundus L. and/or a Cyperus difformis L.; the Gramineae plant comprises a Echinochloa crusgalli (L.) Beauv and/or a Chloris virgata Sw.
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| CN2021104667832 | 2021-04-28 | ||
| CN202110466783.2A CN113424826B (en) | 2021-04-28 | 2021-04-28 | Compound weeding composition containing sarmentine and application thereof |
| PCT/CN2021/109462 WO2022227315A1 (en) | 2021-04-28 | 2021-07-30 | Sarmentine-containing compound herbicidal composition and application thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110021358A1 (en) * | 2009-07-21 | 2011-01-27 | Marrone Bio Innovations, Inc. | Use of sarmentine and its analogs for controlling plant pests |
| WO2015050705A1 (en) * | 2013-10-01 | 2015-04-09 | Marrone Bio Innovations, Inc. | Use of sarmentine and its analogues with an herbicide, and compositions thereof |
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| CN102038007B (en) * | 2009-10-09 | 2013-11-13 | 中国热带农业科学院环境与植物保护研究所 | Piper sarmentosum extract and application thereof in preparation of insecticidal bacteriostat |
| CN103788022A (en) * | 2012-10-30 | 2014-05-14 | 天津卡普希科技有限公司 | Novel preparation method of (2E,4E)-1-(1-pyrrolidinyl)-2,4-decadien-1-one (sarmentine) |
| ES2662875T3 (en) * | 2013-03-15 | 2018-04-10 | Syngenta Participations Ag | Herbicidal composition and method of use thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110021358A1 (en) * | 2009-07-21 | 2011-01-27 | Marrone Bio Innovations, Inc. | Use of sarmentine and its analogs for controlling plant pests |
| WO2015050705A1 (en) * | 2013-10-01 | 2015-04-09 | Marrone Bio Innovations, Inc. | Use of sarmentine and its analogues with an herbicide, and compositions thereof |
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| CN113424826B (en) | 2022-08-05 |
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