JP5502866B2 - Crop phytotoxicity reducing agent - Google Patents

Description

  The present invention relates to a novel use of polymer chemicals as crop safeners and to the reduction and / or prevention of phytotoxicity of pesticidal compositions comprising diafenthiuron on useful plant crops. About the use of. Accordingly, the present invention encompasses novel insecticidal compositions comprising diafenthiuron and crop safeners, and the use of such compositions to control insects in useful plant crops. Furthermore, the present invention extends to a combined package of diafenthiuron and crop safener.

  Insecticidal diafenthiuron {1-tert-butyl-3- (2,6-diisopropyl-4-phenoxyphenyl) thiourea; entry number 229 The Pesticide Manual 14th Edition, when used in recommended proportions and dilutions 2006, Ed. CDS Tomlin, Pub. BCPC} effectively controls a wide range of pests without any significant damage to the crop to which it is applied.

  However, there are reports that diafenthiuron can cause leaf redness and / or necrotic spots under certain climatic conditions and / or usage. It is therefore desirable to find a way to avoid those potential problems. This prediction is an example of increased prevalence for the growth of genetically modified cotton, especially in dry climates, and when local agricultural practices involve the use of pesticide-poor spray volumes and a single nozzle application The impossible phytotoxicity problem needs to be addressed to provide farmers with a wide range of measures against cotton pests that are typically not controlled through GM tracts or conventional insect control treatments.

  Thus, according to a first aspect, the present inventor provides an insecticidal composition comprising diafenthiuron and a crop safener.

  The present invention is based on the unexpected discovery that certain polymeric compounds can improve the phytotoxicity caused by diafenthiuron. In particular, the polymer compound may suitably be a vinyl acetate polymer or copolymer; an acrylic acid polymer or copolymer; or a polyether.

Examples of suitable polymer compounds for use in the present invention are commercially available materials as follows: Atlox Semkote E-135, NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF Includes (but is not limited to) 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit, and Indtron:
Atlox Semkote E-135 (available from Croda) is an ethylene vinyl acetate copolymer.

NeoCryl A-2099 (available from DSM NeoResins) is an acrylic acid-styrene copolymer.
NeoCryl A-1120 (available from DSM NeoResins) is an acrylic acid-styrene copolymer.
NeoCryl A-615 (available from DSM NeoResins) is an acrylic acid copolymer.

Mowilith LDM2418 (available from Celanese) is a vinyl acetate and VeoVa ™ (vinyl ester of versatic acid) copolymer.
Mowilith DHF 57S (available from Celanese) is a vinyl acetate homopolymer.
TEXICRYL 17-0422 (available from Scott Bader) is an acrylic acid polymer.
Vinamul 18160 (available from Celanese) is a vinyl acetate polymer.

Sandovit (available from Syngenta India) is an alkyl-aryl-polyglycol ether.
lndtron (available from lndofil Chemicals Company) is alkylphenyl polyethoxyethanol.

  These polymer compounds are typically used as adjuvants in a wide range of industries, for example NeoCryl A2099 is used for overprint varnishes and barrier coatings, and NeoCryl A-615 is used for transparent wood finishes and plastic coatings Is done. Whilst Sandovit and lndtron are manufactured as surfactants for use in pesticides, and Vinamul 18160 is used in fungicidal formulations, and any of the above group of chemicals can be used as (i) crop safeners. Or (ii) never used in combination with diafenthiuron.

  Accordingly, the inclusion of these adjuvants in compositions comprising diafenthiuron is particularly useful when diafenthiuron is applied to crops as an insect control, especially when such adjuvants are present at low concentrations (typically It is very surprising to improve the observed phytotoxic effects when present in such applications at 2% v / v or less). Thus, the use of adjuvants to reduce the phytotoxicity of diafenthiuron forms a further aspect of the present invention.

  In yet another aspect, the invention relates to Atlox Semkote E-135, NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit, and Indtron Caused by the application of diafenthiuron to a crop of useful plants, comprising applying diafenthiuron to the crop of said useful plant in combination with a crop safener selected from the group consisting of Provided is a method for reducing or inhibiting phytotoxicity in useful plant crops. The phytotoxic effect on the plant can be substantially assessed as a function of the percentage of the occurrence of leaf redness and / or necrosis.

  Crop safeners for use in the present invention are typically polymeric chemicals and typically have 10% or less of the phytotoxicity of leaf redness compared to untreated plants. It will be lower than that. Preferred polymeric chemicals for use in the present invention typically reduce phytotoxicity to 7% or less, and most preferred polymeric chemicals typically provide phytotoxicity to 5% or less. Will lower. The above values are approximate since any pure visual assessment is likely to obtain a degree of subjectivity.

  Diafenthiuron for use in the present invention can be obtained as described in US Pat. No. 4,328,247 or it can be obtained from commercial products (eg POLO ™ 50 WP, POLO ™ 500SC or PEGASUS ™ ); Available from Syngenta Crop Protection AG Basel).

  As mentioned above, the crop safeners used in the present invention are typically Atlox Semkote E-135 (available from Croda), NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615 (all from DSM NeoResins). Mowilith LDM 2418, Mowilith DHF 57S (both available from Celanese) TEXICRYL 17-0422 (available from Scott Bader), Vinamul 18160 (Celanese), Sandovit (available from Syngenta India) and lndtron (from lndofil Chemicals Company) Selected from the group consisting of: Those skilled in the art will be aware or understand that other chemically similar adjuvants may also be used for the same effect in the present invention. Preferably, the polymer chemical / adjuvant used as a crop safener has a minimum film formation temperature of 30 ° C. or lower, more preferably 20 ° C. or lower, and a solubility in water of 1% or lower.

  The individual components in the pesticide composition of the present invention can be used in unmodified form, ie as obtained from synthesis. However, each can be formulated in any suitable manner (separately or together) using standard formulation adjuvants such as carriers, solvents and surfactants, as described hereinafter. Such formulations can be present in the form of concentrates that are diluted prior to use, although ready-to-use formulations can also be produced. Dilution can be performed, for example, with water, liquid fertilizer, micronutrients, organisms, oils or solvents.

  Accordingly, in a further aspect, the present invention provides an insecticidal composition comprising (i) diafenthiuron; (ii) a crop safener as described herein; and (iii) a standard combination adjuvant. To do. In one embodiment of this aspect, diafenthiuron is formulated with a standard formulation adjuvant, and then followed by a crop safener (as can be formulated or obtained from synthesis) prior to spraying. Unioned. In a further embodiment, diafenthiuron, a crop safener and a standard formulation adjuvant will be formulated together.

  The formulations according to the invention can be used in various physical forms such as dust powder, gels, wettable powders, water dispersible granules, water dispersible tablets, foaming pellets, emulsifiable concentrates, finely emulsifiable concentrates, oil-in-water Of emulsions, oil fluids, aqueous dispersions, oil dispersions, capsule suspensions, emulsifiable granules, soluble liquids, water-soluble concentrates (using water or water-miscible organic solvents as carriers), impregnated polymer films It can exist in the form or in other forms known from Manual on Development and Use of FAO Specifications for Plant Protection Products, 5th Edition, 1999.

  In some embodiments, diafenthiuron will be formulated as a wettable powder or as a suspension concentrate and the crop safener will be formulated in an unmodified form or as a liquid. In a further aspect, diafenthiuron, crop safener and standard formulation adjuvant will be formulated as a wettable powder or as a suspension concentrate.

  Formulations may include diafenthiuron and / or crop safeners with standard formulation adjuvants, for example, to obtain compositions in the form of finely divided solids, granules, solutions, suspensions or emulsions. Prepared by mixing. Further standard formulation adjuvants such as finely divided solids, mineral oils, oils of vegetable or animal origin, modified oils of plant or animal origin, organic solvents, water, surfactants or combinations thereof are also the formulations according to the invention Can be included.

  Standard formulation adjuvants that are suitable for the preparation of the formulations of the invention are known per se. The following can be used as liquid carriers: water, toluene, xylenes, petroleum ether, vegetable oil, acetone, methyl ethyl ketone, cyclohexanone, acid anhydride, acetonitrile, acetophenone, amyl acetate, 2-butanone, butylene carbonate, chlorobenzene, Cyclohexane, cyclohexanol, alkyl ester of acetic acid, diacetone alcohol, 1,2-dichloropropane, diethyl alcoholamine, p-diethylbenzene, diethylene glycol, diethylene glycol abiate, diethylene glycol butyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, N, N- Dimethylformamide, dimethyl sulfoxide, 1,4-dioxane, dipropylene glycol, dipropylene glycol Tyl ether, dipropylene glycol dibenzoate, di-p-l-octol, alkylpyrrolidone, ethyl acetate, 2-ethylhexanol, ethylene carbonate, 1, 1, 1-trichloroethane, 2-heptanone, aα-pinene, d-limonene, ethyl lactate, ethylene Glycol, ethylene glycol butyl ether, ethylene glycol methyl ether, γ-butyrolactone, glycerol, glycerol acetic acid, glycerol diacetate,

  Glycerol triacetate, hexadecane, hexylene glycol, isoamyl acetate, isobornyl acetate, isooctane, isophorone, isopropylbenzene, isopropyl myristate, lactic acid, laurylamine, mesityl oxide, methoxypropanol, methyl isoamyl ketone, methyl isobutyl ketone, methyl laur Rate, methyl octanoate, methyl oleate, methylene chloride, m-xylene, n-hexane, n-octylamine, octa-decanoic acid, octylamine acetic acid, oleic acid, oleylamine, o-xylene, phenol, polyethylene glycol (PEG ), Propionic acid, propyl lactate, propylene carbonate, propylene glycol, propylene glycol methyl ether, p-xylene, toluene, triethyl phosphate, triethyl Lenglycol, xylenesulfonic acid, paraffin, mineral oil, trichlorethylene, perchloroethylene, ethyl acetate, amyl acetate, butyl acetate, propylene glycol methyl ether, diethylene glycol methyl ether, methanol, ethanol, isopropanol, and high molecular weight alcohols such as amyl alcohol , Tetrahydrofurfuryl alcohol, hexanal, octanol, ethylene glycol, propylene glycol, glycerol, N-methyl-2-pyrrolidone, and the like.

  Water is generally the carrier chosen for dilution of the concentrate. Suitable solid carriers are, for example, talc, titanium dioxide particles, pyrophyllite clay, silica, attapulgite clay, diatomaceous earth, limestone, calcium carbonate, bentonite, calcium as described in CFR 180.1001. (C) & (d) Montmorillonite, nutshell, wheat flour, soy flour, pumice, wood flour, ground walnut shell, lignin and similar substances.

  A number of surfactants can be advantageously used in the formulations, particularly those formulations designed to be diluted with a carrier prior to use. Surfactants can be anionic, cationic, nonionic or polymeric, and they can be used as emulsifiers, wetting agents or suspending agents, or for other purposes. Typical surfactants include, for example, alkyl sulfate salts such as diethanolammonium lauryl sulfate; alkyl aryl sulfonate salts such as calcium dodecylbenzene sulfonate; alkylphenol / alkylene oxide addition products such as nonylphenol ethoxylate; alcohol / alkylene oxide. Addition products such as tridecyl alcohol ethoxylates; soaps such as sodium stearate; salts of alkyl naphthalene sulfonates such as sodium dibutyl naphthalene sulfonate; dialkyl ethers of sulfosuccinate salts such as sodium di (2-ethylhexyl) sulfosuccinate Sorbitol esters such as sorbitol oleate; quaternary amines such as lauryltrimethylammonium chloride Lido, polyethylene glycol esters of fatty acids such as polyethylene glycol stearate; block copolymers of ethylene oxide and propylene oxide; and salts of mono- and di-alkyl phosphate esters; and also, "McCutcheon's Detergents and Emulsifiers Annual" MC Publishing Corp ., Ridgewood New Jersey, 1981.

  Additional standard formulation adjuvants that can be commonly used in the present invention include crystal inhibitors, viscosity modifiers, suspending agents, pigments, antioxidants, foaming agents, light absorbers, mixing aids, antifoaming agents, complexing agents, Neutralizing or pH-modifying substances and buffers, corrosion inhibitors, fragrances, wetting agents, rewinding enhancers, micronutrients, plasticizers, lubricants, lubricants, dispersants, thickeners, antifreeze agents , Fungicides, and also liquid and solid fertilizers.

  The formulations of the present invention further include additives comprising oils of vegetable or animal origin, mineral oils, alkyl esters of such oils, or mixtures of such oils and oil derivatives. The amount of oil additive in the composition of the invention is generally from 0.01 to 10%, based on the spray mixture. For example, the oil additive can be added to the spray tank at the desired concentration after the spray mixture has been prepared. Preferred oil additives are mineral or vegetable oils such as rapeseed oil, olive oil or sunflower oil, emulsified vegetable oils such as AMIGO ™ (Rhone-Poulenc Canada Inc.), alkyl esters of vegetable oils such as Methyl derivatives or oils of animal origin, such as fish oil or beef tallow. Preferred additives include, for example, as active ingredients substantially 80% by weight of an alkyl ester of fish oil and 15% by weight of methylated rapeseed oil, and also 5% by weight of conventional emulsifiers and pH regulators.

Especially preferred oil additives comprise alkyl esters of C _8-2 2 fatty acids, consisting especially methyl derivatives of C _12-18 fatty acids, such as lauric acid, comprise palmitic acid and methyl ester of oleic acid. These esters are known as methyl laurate (CAS-111-82-0), methyl palmitate (CAS-112-39-0) and methyl oleate (CAS-112-62-9). Preferred fatty acid methyl ester derivatives are Emery ™ 2230 and 2231 (Cognis GmbH). These and other oil derivatives are also known from Compendium of Herbicide Adjuvants, 5th Edition, Southern Illinois University, 2000. Another preferred adjuvant is Adigor ™ (Syngenta AG), an adjuvant based on methylated rapeseed oil.

  The application and action of oil additives can be further improved by combinations with surfactants such as nonionic, anionic or cationic surfactants. Examples of suitable anionic, nonionic and cationic surfactants are listed on pages 7 and 8 of WO 97/34485. Preferred surfactants are anionic surfactants of the dodecyl benzyl sulfonate type, in particular their calcium salts, and nonionic surfactants of the fatty alcohol ethoxylate type.

Particularly preferred are ethoxylated C _12-22 fatty alcohols having a degree of ethoxylation of _5-40 . An example of a commercially available surfactant is the Genapol type (Clariant AG). Silicone surfactants, in particular polyalkyl-oxide-modified heptamethyltolyloxane, which is commercially available, for example as Silwet L-77 ™, and also perfluorinated surfactants. The concentration of the surfactant with respect to the total additive is generally 1-30% by weight. Examples of oil additives consisting of a mixture of oil or mineral oil or derivatives thereof and surfactants are Edenor ME SU ™, Turbocharge ™ (Syngenta AG, CH) or ActipronC (BP Oil UK Limited, GB).

  If desired, the surfactants are used in the formulations according to the invention without so-called oil additives.

  Furthermore, the addition of an organic solvent to the oil additive / surfactant mixture can contribute to an additional enhancement of action. Suitable solvents are, for example, Solvesso ™ (ESSO) or Aromatic Solvent ™ (Exxon Corporation). The concentration of such solvent can be 10-80% by weight of the total weight. Oil additives that are present in admixture with a solvent are described, for example, in US Application No. 4,834,908. A commercially available oil additive disclosed therein is known by the name MERGE ™ (BASF Corporation). A preferred additional oil additive in the present invention is SCORE ™ (Syngenta Crop Protection Canada).

  In addition to the oil additives listed above, a blend of alkyl pyrrolidones (eg, Agrimax ™) can be added to the spray mixture. Synthetic latexes such as blends of polyacrylamide, polyvinyl compounds or poly-1-p-menthenes (eg Bond ™, Courier ™ or Emerald ™) can also be used. A solution containing propionic acid, such as Eurogkem Pen-e-trate ™, can be added to the spray mixture as an action enhancer.

  As described above, the diafenthiuron component and the crop safener component can be manufactured and / or formulated separately and subsequently incorporated prior to spraying (eg, used in the examples below) Based on dilution as "tank mixture").

  In the latter case, each of the individual components (preferably formulated with diafenthiuron) can be packaged in combination. Accordingly, a further aspect of the invention provides a pesticide and crop safener combination pack, the pack comprising a first container containing diafenthiuron and a second container containing a crop safener. .

  The insecticidal compositions and formulations of the present invention can be used to control insects, phytopathogenic ticks and / or ticks on crops of useful plants. Accordingly, in a further aspect of the present invention, an insect on a useful plant crop comprising applying an insecticidal composition as described herein to an insect or crop, or said insect or crop location. A method for controlling is provided.

  Insects, phytopathogenic ticks and ticks, for example, Lepidoptera, Coleoptera, Homoptera, Diptera, Mites, Common moths, Straight moths, Lice, Fleas, White flies, Spots, Termites on crops of useful plants , Scallops and hymenoptera are controlled. In particular, the compositions and formulations are used for blood-sucking insects, ticks and larvae, and more particularly spider mites (especially urticae), aphids (especially cotton aphids) and whiteflies (especially tobacco whiteflies).

  Useful plant crops where the compositions and formulations of the present invention can be used to control insects and / or whose phytotoxicity can be reduced or prevented include cotton and vegetables. Preferably, the crop is a cotton crop.

  The term “crop” has been rendered resistant to herbicides or herbicide types (eg ALS-, GS-, EPSPS-, PPO- and HPPD-inhibitors) as a result of conventional methods of reproduction or genetic engineering. Those crops, and those crops that have been made resistant to harmful insects by genetic engineering methods, eg Bt cotton (resistant to Mexican weevil), eg NuCOTIN33B ™ (cotton), Bollgard ™ (cotton ).

  Any suitable method of application may be used to provide application of the composition or formulation of the present invention to the crop, insect, or insect / crop plant location of the useful plant. They include large and small spray application methods (eg spraying through a boom bar, spraying from a knapsack with single / triple nozzles, etc.) that would be known to those skilled in the art.

  Typically, diafenthiuron contains 250 g of active ingredient in a spray volume of 150 L / Ha to 500 L / Ha (e.g. 150 L / Ha, 200 L / Ha, 250 L / Ha, 300 L / Ha). / Ha (g ai / Ha) to 800 g ai / Ha, for example 250, 300, 400 or 800 g ai / Ha will be applied. A crop safener would be included to give a concentration of 0.02% v / v to 2% v / v. Preferably, the crop safener will be applied at the following concentrations: 0.07% v / v, 0.1% v / v, 0.25% v / v or 1% v / v.

Various aspects and embodiments of the invention will be illustrated in detail by way of example. It will be understood that modification of detail may be made within the scope of the invention.
For the avoidance of doubt, literary references, patent applications or patents are cited within the text of the present application, the entire text of which is incorporated herein by reference.

Example 1 : Effect of Atlox Samkote E-135 on the observed phytotoxicity of diafenthiuron in non-transgenic cotton :
A field test with three replicated plots (50 m ² each) was performed to evaluate the effect of the polymer chemical Atox Semokote E-135 and spray volume on diafenthiuron-mediated phytotoxicity in cotton.

  Treated with a composition comprising cotton (variety CIM-496) BBCH72, diafenthiuron in the form of POLO ™ 500SC alone or in combination with Atlox Semkote E-135 at a rate of 250 g / ha did. Two applications to the crop were made at 1 week intervals and separated. Application was done with either a high (H) spray volume (700 L / ha) or a low (L) spray volume (200 L / ha) using a single nozzle knapsack sprayer. A composition comprising Atlox Semkote E-135 contained this component at a concentration of 0.03% v / v. The degree of phytotoxicity compared to untreated cotton 4 and 7 days after application (NB. 7-day evaluation for the first spray was performed before the second spray) and cotton leaf redness As a function of percentage. The results are shown in Table 1 below.

  It is observed that the lower the spray volume, the higher the degree of diafenthiuron-mediated phytotoxicity. Inclusion of Atlox Semokote E-135 at 0.03% reduces the observed phytotoxicity.

Example 2 : Effect of Atlox Semkote E-135 and Vinamul 16180 on the observed phytotoxicity of diafenthiuron in transgenic cotton with BBCH73 :
Two single plot (200m ² ) non-replicating field tests were performed, polymer chemicals against phytotoxicity caused by diafenthiuron in transgenic cotton, Atlox Semkote E-135 ("Atlox", Croda) and Vinamul The effect of 16180 ("Vinamul", Celanese) was evaluated. The first field test was performed with a high spray volume and the second test was performed with a low spray volume.

2.1: Test 1-spray volume 700L / Ha :
Cotton (Vishal-11) grown to BBCH73 and, at the specified concentration, diafenthiuron (formulated as WP or SC and applied in proportions as indicated) alone or as test chemical And processed in combination. One crop application was performed using a knapsack sprayer with a triple cone nozzle and a spray volume of 700 L / Ha. The degree of phytotoxicity was evaluated as a function of the percentage of redness (% redness) on cotton leaves after 4, 7 and 10 days of application compared to untreated cotton. Necrosis (if observed) was also shown. The results are shown in Table 2 below.

2.2: Test 2-spray volume 300L / Ha :
Cotton (Vishal-11) is grown to stage BBCH73 and, at the specified concentration, with diafenthiuron (formulated as WP or SC and applied in proportions as indicated) alone or in test chemistry Treated in combination with chemicals. Two crop applications were made using a single nozzle knapsack sprayer and a spray volume of 300 L / Ha and separated at weekly intervals. The degree of phytotoxicity was assessed as a function of the percentage of redness on cotton leaves compared to untreated cotton. Evaluation was performed 4 and 7 days after application 1 (NB. 7 day evaluation for first spray was performed before second spray) and 4, 7 and 10 days after application 2. The results are shown in Table 3 below.

Example 3 : Effect of Atlox Semkote E-135 Sandovit and lndtron on the observed phytotoxicity of diafenthiuron in transgenic cotton :
Two single plot (200m ² ) non-replicating field tests were conducted and a polymer chemical against phytotoxicity caused by diafenthiuron in transgenic cotton, Atlox Semkote E-135 ("Atlox", Croda), Sandovit The effects of (Syngenta India) and lndtron (Indofil Chemicals Company) were evaluated.

3.1: Test 1 :
Cotton (Vishal-11) is grown to stage BBCH73 and, at the specified concentration, with diafenthiuron (formulated as WP or SC and applied in proportions as indicated) alone or in test chemistry Treated in combination with chemicals. Two crop applications were made using a single nozzle knapsack sprayer and a spray volume of 300 L / Ha and separated at weekly intervals. The degree of phytotoxicity was assessed as a function of the percentage of redness on cotton leaves compared to untreated cotton. Evaluation was performed 4 and 7 days after each application (NB. 7 day evaluation for the first spray was performed before the second spray). The results are shown in Table 4 below.

3.2: Test 2 :
Cotton (Vishal-11) was grown to stage BBCH73 and treated with diafenthiuron WP50 at a specified concentration of 300 g / Ha alone or in combination with test chemicals. Two crop applications were made using a single nozzle knapsack sprayer and a spray volume of 300 L / Ha and separated at weekly intervals. The degree of phytotoxicity was assessed as a function of the percentage of reddening on cotton leaves compared to untreated cotton (control data). Evaluation was performed 4 and 7 days after each application (NB. 7 day evaluation for the first spray was performed before the second spray). The results are shown in Table 5 below.

Example 4 : Effect of different polymer chemicals on the observed phytotoxicity of diafenthiuron in transgenic cotton :
A non-replicating single plot (100m ² ) field test was performed and various polymer chemicals against diafenthiuron-mediated phytotoxicity in transgenic cotton, Atlox Semkote E-135 "Atlox" (Croda), NeoCryl A-2099 The effects of "2099" (DSM NeoResins) and NeoCryl A-1120 "1120" (DSM NeoResins) were evaluated.

  Bt-cotton (Vishal-11) was grown to stage BBCH73 for 90 days and with diafenthiuron (formulated as WP or SC and applied in proportions as shown) at the specified concentrations Treated alone or in combination with test chemicals. A single crop application was performed using a knapsack sprayer with a single nozzle and a spray volume of 300 L / Ha. The degree of phytotoxicity was assessed as a function of the percentage of redness (% redness) on cotton leaves after 6, 8 and 12 days of application. Necrosis (if observed) was also shown. The results are shown in Table 6 below.

  The data shows that all three polymer chemicals can be used to improve the phytotoxic effects of diafenthiuron.

Example 5 : Effect of different polymer chemicals on the observed phytotoxicity of diafenthiuron in non-transgenic cotton :

Two non-replicating single plot (60 m ² ) field tests were performed to evaluate the effect of various polymer chemicals on diafenthiuron-mediated phytotoxicity in non-transgenic cotton. The first test was conducted with Atlox Semkote E-135 "Atlox" (Croda), Mowilith DHF 57S "57S" (Celanese), Mowilith LDM 2418 "2418" (Celanese) and A-2099 "2099" (DSM NeoResins) The effect was evaluated. A second trial was conducted, and Atlox Semkote E-135 "Atlox" (Croda), NeoCryl A-1120 "1120" (DSM NeoResins), NeoCryl A-615 "615" (DSM NeoResins) and TEXICRYL 17-0422 "17 The effect of -0422 "(Scott Bader) was evaluated.

  Cotton (variety Delta Opal) is grown to stage BBCH67 and, at the specified concentration, diafenthiuron (formulated as WP or SC and applied at 800 g ai / Ha) alone or test chemical Applied in combination with. Crop leaf application was provided by a boom bar with 6 conical nozzles (3 nozzles per row) using a spray volume of 150 L / Ha. The results are shown in Tables 7 and 8 below. The degree of phytotoxicity was measured as the percentage of redness on cotton leaves (% redness) after 6, 8 and 11 days of application (Test 1, Table 7) or 6, 8 and 12 days after application (Test 2, Table 8). ) As a function. Necrosis is assessed qualitatively and + indicates some slight necrosis, ++ indicates a high degree of necrosis, and ++ indicates substantial necrosis.

  The data show that all four chemicals improve the phytotoxic effect of diafenthiuron, and Atlox Semkote E-135 and NeoCryl A-2099 are particularly effective.

  The data show that all four chemicals improve the phytotoxic effects of diafenthiuron, and Atlox Semkote E-135 and NeoCryl A-1120 are particularly effective.

Claims (8)

Selected from the group consisting of diafenthiuron and the compounds consisting of Atlox Semkote E-135, NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit and Indtron An insecticidal composition comprising a crop safener. (I) diafenthiuron;
(Ii) A crop safener selected from the group consisting of Atlox Semkote E-135, NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit and Indtron And (iii) standard combination adjuvant ,
An insecticidal composition comprising: A first container containing diafenthiuron , and
A second container containing a crop safener selected from Atlox Semkote E-135, NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit and Indtron ,
A combination pack of insecticide and crop safener comprising A method for controlling insects on useful plant crops, comprising applying an insecticidal composition according to claim 1 or 2 to an insect or crop, or to the insect or crop location.   A method for reducing or preventing phytotoxicity in useful plant crops caused by the application of diafenthiuron to useful plant crops, comprising: Atlox Semkote E-135, NeoCryl A-2099, NeoCryl A-1120 In combination with a crop safener selected from the group consisting of: NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit and Indtron, A method comprising applying. Consists of Atlox Semkote E-135, NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit and Indtron for reducing the phytotoxicity of diafenthiuron Use of a compound selected from the group in combination with diafenthiuron . As a crop safener for compounds selected from the group consisting of Atlox Semkote E-135, NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S, TEXICRYL 17-0422, Vinamul 18160, Sandovit and Indtron Use in combination with diafenthiuron . Use in combination with diafenthiuron as an agrochemical formulation of a compound selected from the group consisting of NeoCryl A-2099, NeoCrylA-1120, NeoCryl A615, Mowilith LDM2418, Mowilith DHF 57S and TEXICRYL 17-0422.