Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
  • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
  • C07D231/06—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
• • 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
  • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
  • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
  • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
  • A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
  • C07D231/54—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings condensed with carbocyclic rings or ring systems

Definitions

• This invention pertains to compounds of Formulae I, II and III, including all geometric and stereoisomers, agriculturally suitable salts thereof, compositions containing them and their use as
• arthropodicides in agricultural and home uses are arthropodicides in agricultural and home uses.
• A is a 1, 2 or 3-atom bridge comprising 0 to 3 carbon atoms, 0 to 1 oxygen atoms, NR 6 , or S(O)q, wherein each carbon individually can be substituted with 1 to 2 substituents selected from 1 to 2 halogen, C 1 to C 6 alkyl C 2 to C 4 alkoxycarbonyl or phenyl optionally substituted with 1 to 3 substituents
• B is H, C 1 to C 6 alkyl, C 4 to C 7 cycloalkyl
• alkyl C 3 to C 6 cycloalkyl optionally
• J is H, C 1 to C 4 alkyl or phenyl optionally
• K is H or CH 3 ;
• q 0, 1 or 2;
• R 1 , R 2 , R3 and R 14 are independently selected from R 4 , halogen, CN, N 3 , SCN, NO 2 , OR 4 , SR 4 , S(O)R 4 , S(O) 2 R 4 , OC(O)R 4 , OS(O) 2 R 4 , CO 2 R 4 ,
• R 1 , R 2 , R 3 or R 14 can independently be taken together as OCH 2 O, OCH 2 CH 2 O or CH 2 CH 2 O, to form a 5 or
• R 4 is selected from H, C 1 to C 6 alkyl, C 3 to C 6 cycloalkyl, C 3 to C 8 alkoxycarbonylalkyl,
• R 4 and R 5 can be taken together as (CH 2 ) 4 , (CH 2 ) 5 or CH 2 CH 2 OCH 2 CH 2 ;
• R 5 is selected from H, C 1 to C 4 alkyl, C 3 to C 4 alkenyl, C 3 to C 4 alkynyl or C 1 to C 4 haloalkyl;
• n and p are independently 1 to 3;
• W is halogen, CN, NO 2 , C 1 to C 2 alkyl, C 1 to C 2 haloalkyl, C 1 to C 2 alkoxy, C 1 to C 2 haloalkoxy, C 1 to C 2 alkylthio, C 1 to C 2 haloalkylthio, C 1 to C 2 alkylsulfonyl or C 1 to C 2 haloalkylsulfonyl;
• R 6 is H, C 1 to C 4 alkyl, C 1 to C 4 haloalkyl, C 2 to C 4 alkenyl, C 2 to C 4 haloalkenyl, phenyl optionally substituted with W or benzyl optionally substituted with W;
• R 7 is H, C 1 to C 4 alkyl, C 2 to C 4 alkenyl, C 2 to C 4 alkynyl, C 2 to C 4 alkylcarbonyl, C 2 to C 4 alkoxycarbonyl or C 1 -C 4 alkylsulfonyl;
• Q is SX, C 2 to C 22 alkoxycarbonyl, C 2 to C 22
• haloalkoxycarbonyl C 7 to C 15 phenoxycarbonyl optionally substituted with 1 to 3 substituents selected from W; C 7 to C 15 phenyl carbonyl optionally substituted with 1 to 3 substituents independently selected from W;
• Y is C 5 to C 22 alkyl, C 2 to C 22 haloalkyl, C 5 to C 22 alkoxyalkyl, C 4 to C 22 alkoxyalkoxyalkyl, C 5 to C 12 alkylthio, C 5 to C 12 haloalkylthio, C 5 to C 22 alkylcarbonyl, C 5 to C 22
• haloalkylcarbonyl C 5 to C 22 alkoxycarbonyl, C 3 to C 22 haloalkoxycarbonyl, or SX;
• Z is C 7 to C 22 alkyl, C 2 to C 22 haloalkyl, C 7 to C 22 alkoxyalkyl, C 4 to C 22 alkoxyalkoxyalkyl, C 7 to C 12 alkylthio, C 7 to C 12 haloalkylthio, C 7 to C 22 alkylcarbonyl, C 7 to C 22 haloalkylcarbonyl, C 7 to C 22 alkoxycarbonyl, C 3 to C 22 haloalkoxycarbonyl, C 7 to C 15 phenylcarbonyl optionally substituted by 1 to 3 substituents independently selected from W; or SX;
• R 8 and R 12 are independently C 1 to C 6 alkyl
• R 8 and R 12 can lbe taken together as (CH 2 ) 4 , (CH 2 ) 5 or
• R 9 is F, C 1 to C 22 alkyl, C 3 to C 6 cycloalkyl, C 3 to C 6 cycloalkoxy, C 2 to C 8 dialkylamino, C 1 to C 6 haloalkyl, phenyl or phenoxy either
• R 10 and R 11 are independently C 1 to C 4 alkyl
• R 10 and R 11 can be taken together as (CH 2 ) 2 , (CH 2 ) 3 or CH 2 C(CH 3 ) 2 CH 2 ;
• Y' is S or O
• a 0 to 2.
• Preferred compounds A are those of Formula I, II wherein:
• R 1 , R 2 , R 3 and R 14 are independently R 4 , CO 2 R 4 , halogen, CN, NO 2 , OR 4 , SR 4 , S(O)R 4 , S(O) 2 R 4 or NR 4 R 5 , or when m, n or p is 2;
• R 1 R 2 , R 3 or R 14 can be taken together as OCH 2 O, OCH 2 CH 2 O or CH 2 CH 2 O, each of which can be substituted with 1 to 4 halogen atoms or 1 to 2 mettyl groups;
• R 4 is C 1 to C 2 alkyl, C 3 to C 4 alkenyl, C 1
• R 5 is H or C 1 to C 2 alkyl
• Q is SX, CHO, C 2 to C 6 alkoxycarbonyl, C 2
• X is X 1 X 2 , X 3 , X 4 or X 5 ;
• R 8 and R 12 are independently C 1 to C g alkyl
• R 8 and R 12 can be taken together as (CH 2 ) 4 , (CH 2 ) 5 or (CH 2 ) 2 O(CH 2 ) 2 ;
• R 10 and R 11 are independently C 1 to C 3 alkyl
• a 2;
• X' is O or S
• t O, 1 or 2;
• V is 0, S(O) q , or NR 6 ;
• Z' is O or NR 6 ;
• R 13 is H, halogen, C 1 to C 6 alkyl, C 2 to C 4 alkoxycarbonyl, phenyl or phenyl substituted by 1 to 3 substituents independently selected from W;
• Preferred compounds B are compounds A wherein: R 1 is halogen, CN, NO 2 , OCF 2 H, OCF 3 , OCH 2 CF 3 , OCF 2 CF 2 H, CF 3 or when m is 2 then R 1 may be taken together as CH 2 C(CH 3 ) 2 O or CF 2 CF 2 O to form a 5 membered ring;
• R 2 is H, halogen, CN, NO 2 , OCH 3 , OCF 2 H, OCH 2 CF 3 ,
• R 3 and R 14 are independently R 2 or CO 2 R 4 ;
• Q is SX, C 2 to C 4 alkoxycarbonyl, C 2 to C 4
• alkylcarbonyl C 7 to C 8 phenylcarbonyl or CHO
• X is X 1 , X 2 or X 3 ;
• R 8 is C 1 to C 4 alkyl, CF 3 , cyclohexyl, phenyl optionally substituted with W or benzyl optionally substituted by W;
• R 9 is F, C 1 to C 22 alkyl, C 1 to C 6 haloalkyl, phenyl or phenoxy optionally substituted by
• n, n or p are independently 1 to 2 and one
• B is H, C 1 -C 4 alkyl, CO 2 R 4 , C(O)R 4 or phenyl
• Preferred compounds C are preferred compounds B wherein:
• X is X 1 ;
• R 8 is C 1 to C 4 alkyl
• R 9 is C 1 to C 22 alkoxy
• Formula III is III-1 or III-2;
• V is O or CH 2 ;
• t 1;
• R 13 is H.
• Preferred compounds D are preferred compounds B wherein:
• X is X 2 ;
• R 8 is C 1 to C 4 alkyl or phenyl optionally
• R 9 is C 1 to C 6 alkyl, C 1 to C 6 haloalkyl,
• Preferred compounds E are preferred compounds C of Formula I.
• Preferred compounds F are preferred compounds B of Formula II.
• Preferred compounds G are preferred compounds B of Formula III.
• Y in Formula IV represents a halogen such as
• the treatment of V, VI or VII with IV is carried out by mixing the two reagents in the presence of a base and a solvent.
• Suitable bases are the tertiary amines ⁇ uch as triethylamine or pyridine.
• Alkali metal bases such as sodium hydride or potassium tert-butoxide or organo lithium bases such as aryl or alkyllithium also can be utilized.
• Suitable solvents include methylene chloride, tetrahydrofuran or ether.
• the base can al ⁇ o be used as the solvent, e.g., pyridine.
• a moderate stoichiometric excess up to 10% of the base and compounds of Formula IV relative to compounds of Formula V, VI or VII.
• Water should be excluded from the reaction mixture by using anhydrous reagents and conducting the treatment in a nitrogen atmosphere.
• the product is isolated and purified by conventional techniques as demonstrated in Example 1.
• the pyrazoline precursors of Formula V, VI, and VII are compounds that can be prepared by methods known to those skilled in the art. The methods of pyrazoline synthesis have been recently reviewed by El-Rayyes and Al-Awadi in "Synthesis" page 1028 to 1042, November 1985.
• certain compounds of Formula V wherein B is other than H can be prepared directly from compound ⁇ of Formula V wherein B is H by further treatment with a base and the appropriate type of electrophile as illustrated by Scheme 2.
• carbonyl-containing reagents results in substitution on nitrogen.
• Strong bases known to deprotonate ureas such as potassium t-butoxide, potassium hydride and sodium hydride are the preferred acid acceptors in the process.
• Suitable electrophiles include, but are not restricted to , acyl halides, acid anhydrides, carbonates, and chlorof ormates.
• sequence is normally run in the temperature range of -10 to 25°C, but can be run at temperatures as high as 110°C or as low as -50°C in certain cases.
• electrophiles used in this process are well known to those skilled in the art and are generally commercially available.
• QX is selected from acyl halides
• Step A 3,3a,4,5-Tetrahydro-N-[4-(trifluoromethyl)- phenyl]-2H-benz[g]indazole-2-carboxamide
• Step B 3,3a,4,5-tetrahydro-3a-methoxycarbonyl-N- [4'-(trifluoromethyl)phenyl]-2H-benz[g]- indazole-2-carboxamide
• Step D Ethyl (chloro ⁇ ulfenyl)(1-methyl- ethyl)carbamate
• sulfur dichloride (11.3 g, 0.11 mol) in one portion.
• pyridine (8.7 g, 0.11 mol) was added dropwise over eleven minutes. After complete addition of the pyridine the
• Step B To a solution of the title compound of Step B (2.0 g, 4.8 mmol) in 50 ml methylene chloride cooled to 0°C was added triethylamine (1.0 g, 0.01 mol) and ethyl (chlorosulfenyl) (1-methylethyl)carbamate from Step D (1.4 g, 7.7 mmol). The mixture was allowed to warm to room temperature and stirred for one hour. The crude mixture was purified by silica column chromatography using ether-hexane (1:2) as eluent.
• Step A (1-methylpro ⁇ oxycarbonyl) sulfenyl chloride
• Chlorocarbonylsulfenyl chloride (13.1 g, 0.1 mol) was mixed with 2-butanol (6.7 g, 0.09 mol) and warmed to about 35° to 40°C for one hour. Distillation resulted in the title compound (5.93 g) Bp. 70°C/0.8 mm Hg .
• NMR spectrum was con ⁇ istent with the structure.
• Step B 3,3a,4,5-Tetrahydro-3a-methoxycarbonyl-N- [4-(trifluoromethyl)phenyl]-N-(1-methyl- propoxycarbonyl ⁇ ulfenyl)-2H-benz[g]indazole- 2-carboxamide.
• Example 1 (Example 1) (0.4 g, 0.96 mmol) in 5 ml methylene chloride was added triethylamine (0.12 g) and cooled to 0°C. To this solution was added (1-methylpropoxy- carbonyl)sulfenyl chloride (Step A) (0.2 g, 0.0012 mol). The mixture was stirred at room temperature for one hour. At this stage thin layer
• Step A N,N'-bis-(dibutylamino)disulfide To a solution of dibutylamine (52 g, 0.4 mol) in 200 ml hexane cooled to 0°C was added sulfur monochloride (13.5 g, 0.1 mol) dropwise with stirring over a period of 20 minutes. The reaction mixture was warmed up to room temperature and stirring was continued for 30 minutes. The reaction mixture was filtered and hexane was evaporated to yield 30.1 g of the title compound.
• Step C 3,3a,4,5-Tetrahydro-3a-methoxycarbonyl-N-[4- (trifluoromethyl)phenyl]-N-(dibutylaminosulfenyl)-2H-benz[g]indazole-2-carboxamide.
• Step B 3-chlorobenzenebutanoic acid To a mixture of 8.0 g of 60% sodium hydride in
• the reaction was stirred overnight and the methanol was then removed at reduced pressure.
• the crude re ⁇ idue was partitioned between H 2 O and ether, the aqueous extracts were acidified with concentrated HCl and then extracted several times with ether. The ether extracts were dried over magne- sium sulfate, filtered and concentrated to afford 51.7 g of a yellow oil.
• the crude re ⁇ idue was dis ⁇ olved in 200 ml of toluene and heated at reflux for 4 days under N 2 to effect decarboxylation. After this time toluene was removed by concentration at reduced pre ⁇ sure to afford 35.72 g of a yellow oil.
• 1 H NMR analysis of the crude product was consistent with 3-chlorobenzene- butenoic acid of purity estimated to be 80%. The crude product was used without further purification directly in the next step.
• Step D 7-chloro-3,3a,4-5-tetrahydro-N-[4-(trifluoromethyl)phenyl]-2H-benz[g]-indazole- 2-carboxamide
• Step E 7-chloro-3,3a,4,5-tetrahydro-3a-methoxy- carbonyl-N-[4-(trifluoromethyl)phenyl]- 2H-benz[g]indazole-2-carboxamide
• Step F 7-chloro-3,3a,4,5-tetrahydro-3a-methoxy- carbony]-N-[4-(trifluoromethyl)phenyl]- N-[N'-(methyl)-N'-(hexoxycarbony1)amino- suIfenyl]-2H-benz[g]indazole-2-carboxamide
• Step A Ethyl (chlorosulfenyl)(1-methylethyl)- carbamate
• Step B 1-(4-chlorophenyl)-5-(4-fluorophenyl)- 4,5-dihydro-N-[4-(trifluoromethyl)phenyl]-
• the compounds of this invention will generally be used in formulation with a carrier comprising a liguid or solid diluent or an organic solvent.
• inventions are prepared in conventional ways. They include dusts, baits, traps, granules, pellets,
• Sprayable formulations can be extended in suitable media and used at spray volumes of from about one to several hundred liters per hectare.
• High strength compositions are primarily used as intermediates for further formulation.
• the formulations broadly, contain about 1% to 99% solid or liquid diluent(s). More specifically, they will contain these
• compositions Lower or higher levels of active ingredient can, of course, be present depending on the intended use and the physical properties of the compound.
• compositions are well known. Solutions are prepared by simply mixing the ingredients. Fine solid compositions are made by blending and, usually, griding as in a hammer or fluid energy mill. Suspensions are prepared by wet-milling (see, for example, U.S. 3,060,084). Granules and pellets can be made by spraying the active material upon preformed granular carriers or by agglomeration techniques. See Browning, "Agglomeration,” Chemical Engineering, December 4, 1967, pages 147 and following, and “Perry's Chemical Engineer's Handbook,” 4th Ed., McGraw-Hill, New York, 1963, pages 8 to 59 and following.
• spray oils usually have these characteristics: they are not phytotoxic to the crop sprayed, and they have appropriate viscosity. Petroleum based oils are commonly used for spraying. In some areas, crop oils are preferred such as the following:
• Spray oil concentrates comprise a spray oil together with one or more additional ingredients such as emulsifiers and wetting agents.
• additional ingredients such as emulsifiers and wetting agents.
• the ingredients are combined and stirred with gentle warming to speed solution.
• a fine screen filter is included in packaging operation to insure the substantial absence of extraneous undissolved material in the product.
• the active ingredient is mixed with the inert materials in a blender. After grinding in a hammermill, the material is reblended and sifted through a 5-mesh screen.
• the wettable powder and the pyrophyllite diluent are thoroughly blended and then packeged.
• the product is suitable for use as a dust.
• the active ingredient is dissolved in a volatile solvent such as acetone and sprayed upon dedusted and pre-warmed attapulgite granules in a double cone blender.
• a volatile solvent such as acetone
• the acetone is then driven off by heating.
• the granules are then allowed to cool and are packaged.
• Example F The ingredients are combined and stirred with gentle warming to speed solution. A fine screen filter is included in packaging operation to insure the absence of any extraneous undissolved material in the product.
• Example F is included in packaging operation to insure the absence of any extraneous undissolved material in the product.
• the active ingredient is blended with the inert materials in a blender. After grinding in a hammermill, the material is reblended an sifted through a U.S.S. 50-mesh screen and packaged.
• the wettable powder and the pyrophyllite diluent are thoroughly blended and then packaged.
• the product is suitable for use as a dust.
• the ingredients are blended in a rotating mixer and water is sprayed on to accomplish granulation.
• the desired range 0.1 to 0.42 mm (U.S.S. No. 18 to 40 sieves)
• the granules are removed, dried, and screened. Oversize material is crushed to produce additional material in the desired range. These granules contain 12% active ingredient.
• the ingredients are combined and stirred to produce a solution suitable for direct, low volume application.
• the ingredients are blended and ground together in a sand mill to produce particles
• the product can be used directly, extended with oils, or emulsified in water.
• the ingredients are combined and stirred with gentle warming to speed solution.
• a fine screen filter is included in packaging operation to insure the absence of any extraneous undissolved material in the product.
• the ingredients are combined and stirred to produce a solution suitable for direct, low volume application.
• the active ingredient and surfactant blend are dissolved in a suitable solvent such as acetone and sprayed onto the ground corn cobs. The granules are then dried and packaged.
• Compounds of Formula I, II and/or III can also be mixed with one or more other insecticides, fungicides, nematocides, bactericides, acaricides, or other biologically active compounds to form a multi-component pesticide giving an even
• sulprofos Additional insecticides are listed hereafter by their common names: triflumuron, diflubenzureon, methoprene, buprofezin, thiodicarb, acephate, azinphosmethyl, chlorpyrifos, dimethoate, fonophos, isofenphos, methidathio, methamidiphos, monocrotphos, phosmet, phosphamidon, phosalone, pirimicarb, phorate,
• the compounds of the present invention exhibit activity against a wide spectrum of foliar and soil-inhabiting, livestock, household and public health arthropods. Those skilled in the art will recognize that not all compounds will be equally effective against all arthropods but the compounds of this invention display activity against economically important pest species, such as grasshoppers and cockroaches including German or American roaches;
• hemipterans plant bugs (Miridae)
• tarnished plant bugs such as tarnished plant bugs, lace bugs (Tingidae), seed bugs (Lygaeidae) such as cinch bugs, stink bugs (Pentatomidae), leaf-footed bugs (Coreidae) such as squash bug, and red bugs and stainers (Pyrrocoridae) such as cotton stainer; also homopterans such as whiteflies, aphids such as the green peach aphid, greenbug and cotton aphid, leafhoppers, spittlebugs and planthopper ⁇ such as aster leafhopper, potato leafhopper and rice planthoppers, psyllids such as pear psylla, scales (coccids and diaspidids) and mealybugs; coleopterans including weevils such as boll weevil and rice, water weevil, grain borers,
• chrysomellid beetles such as Colorado potato beetle, flea beetles and other leaf beetles, coccinellid beetles such as Mexican bean beetle. Activity is also shown against soil insects such as southern corn rootworm and wireworm;
• lepidopterous larvae including noctuids such as fall armyworm, beet armyworm, other Spodoptera spp.,
• Heliothis spp. such as virescens, Heliothis zea, cabbage looper, green cloverworm, velvetbean
• dipterans such as leafminer, soil maggots, midges, and tephritid fruit flies; house fly, Musca domestica; stable fly,
• the pest control afforded by the compounds of the present invention is not limited, however, to these species.
• Arthropods are controlled in agricultural crops and animals and humans are protected by applying one or more of the compounds of this invention, in an effective amount, to the locus of infestation, to the area to be protected, directly to the pests to be controlled, or to their environment.
• a preferred method of application is by spraying with spray equipment that distributes the compound on the
• foliage in the soil, or to the plant part that is infested or needs to be protected.
• granular formulations of these compounds can be applied to soil or foliage or, optionally,
• the pyrazoline compound(s) of this invention can be applied directly, but most often application will be of a formulation comprising one or more compounds of this invention, in an agriculturally suitable carrier or diluent.
• a most preferred method of application involves spraying a water dispersion or refined oil solution of the compounds.
• compound(s) can also be mincorporated into baits which are consumed or in devices such as traps and the like that entice the arthropod to ingest or otherwise contact the toxicant compound(s).
• the rate of application of Formula I, II or III compounds required for effective control will depend on such factors as the species of arthropod to be controlled, the pest's life stage, its size, its location, the host crop, time of year of application, ambient moisture, temperature conditions, and the like. In general, application rates of 0.01 to 2 kg of active ingredient per hectare are sufficient to provide effective control in large scale field operations under normal circumstances, but as little as 0.001 kg/hectare may be sufficient or as much as 8 kg/hectare may be required for agricultural use, or 0.1 mg/ft 2 to 20 mg/ft 2 for home use, depending upon the factors listed above.
• Test units each consisting of an 8-ounce plastic cup containing a layer of wheat germ diet, approx. 0.5 cm thick, were prepared.
• Example 56 The test procedure of Example 56 was repeated for efficacy against third-instar larvae of the tobacco budworm (Heliothis virescens) except that mortality was assessed at 48 hours. Of the compounds tested on tobacco budworm, the following resulted in greater than or equal to 80% mortality: 2, 4, 7, 11, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 38, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53 and 54.
• Example 58 Example 58
• Test units each consisting of an 8-ounce plastic cup containing a one-inch square of wheat germ/soyflour diet, were prepared. Five third-instar larvae of the European corn borer (Ostrinia nubilalis) were placed into each cup. Sets of three test units were sprayed as described in Example 56 with individual solutions of the test compounds. The cups were then covered and held at 27C and 50% relative humidity for 48 hours, after which time mortality readings were taken. Of the compounds tested on
• Test units each consisting of an 8-ounce plastic containing 1 sprouted corn (Zea mays) see, were prepared. Sets of three test units were sprayed as described in Example 56 with individual solutions of the test compounds. After the spray on the cups had dried, five third-instar larvae of the southern corn rootworm (Diabrotica undecimpunctata howardi) were placed into each cup. A moistened dental wick was inserted into each sup to prevent drying and the cups were then covered. The cups were then held at 27C and 50% relative humidity for 48 hours, after which time mortality readings were taken.
• Test units were prepared from a series of 12-ounce cups, each containing oat (Avena sativa) seedlings in a 1-inch layer of sterilized soil. Sets of three test units were sprayed as described in
• Example 56 with individual solutions of the belowlisted compounds. After the oats had dried from the spraying, between 10 and 15 adult aster leafhoppers (Mascrosteles fascifroms) were aspirated into each of the cups. The cups were held at 27C and 50% relative humidity for 48 hours, after which time mortality readings were taken.

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  • 1989-09-26 EP EP89309749A patent/EP0365155B1/de not_active Expired - Lifetime
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