Pesticidal compositions

Abstract

A formulated composition suitable for controlling or preventing pathogenic damage in a plant comprising (A) at least one solid active ingredient having a water solubility of at most 100 μg/litre at 25° C. at neutral pH, in an amount of at least 1 weight %, based on the total weight of the formulated composition, (B) at least one non-ionic surface active compound having a hydrophile-lipophile balance (HLB) of between 10 and 18, one or more customary formulation auxiliaries, and water; wherein active ingredient (A) is suspended or dispersed in the water, the weight ratio of surface active compound (B) to active ingredient (A) is in the range of from 1.5 to 15.0, provided the minimum amount of surface active compound (B) is at least 6 weight %, based on the total weight of the formulated composition. Also a method of improving pesticide residue levels in agriculture.

1 . An aqueous agrochemical pesticide formulated suspension concentrate composition comprising:
 (A) at least one solid active ingredient having a water solubility of at most 100 μg/litre at 25° C. at neutral pH, wherein the amount of (A) is in the range of 1.5 to 15 weight % based on the total weight of the formulated composition;   (B) non-ionic surface-active compound having a hydrophile-lipophile balance (HLB) of between 10 to 18 selected from a polyoxyalkylene-sorbitan ester, castor oil alkoxylate, alcohol alkoxylate, fatty acid ethoxylate, fatty monoethanolamide based ethoxylate and block polymers of ethylene oxide and propylene oxide block, wherein the amount of (B) is in the range of 6.5 to 25 weight % based on the total weight of the formulated composition;   one or more customary formulation auxiliaries; and   water;   wherein the weight ratio of surface-active compound (B) and active ingredient (A) is in the range of from 1.5 to 15.0; and   wherein the suspended particles of active ingredient (A) have a size from 0.1 to 0.9 μm at x 50  as defined in ISO 13320-1 and a size from 0.7 to 1.5 μm at x 95  as defined in ISO 13320-1.   
     
     
         2 . The composition according to  claim 1 , wherein the non-ionic surface-active compound is selected from a sorbitan ester ethoxylate, castor oil ethoxylate, fatty acid ethoxylate and fatty alcohol ethoxylate. 
     
     
         3 . The composition according to  claim 2 , wherein the sorbitan ester ethoxylate is an ethoxylated sorbitan oleate having 20 ethylene oxide units and having a HLB between 11 and 17. 
     
     
         4 . The composition according to  claim 2 , wherein the castor oil ethoxylate has 30 to 45 EO groups, such as 30 to 35 ethylene oxide units and having a HLB of between 10 and 14. 
     
     
         5 . The composition according to  claim 2 , wherein the fatty acid ethoxylate is an oleic acid having 10 to 30 ethylene oxide units and having a HLB of between 11 and 15. 
     
     
         6 . The composition according to  claim 2 , wherein the fatty alcohol ethoxylate is a saturated or unsaturated aliphatic alcohol having 8 to 24 carbon atoms in the alkyl radical, which is derived from the corresponding fatty acids or from petrochemical products, and having 1 to 100 ethylene oxide units (EO) and a HLB of between 10 and 13. 
     
     
         7 . The composition according to any one of  claims 1  to  6 , wherein the active ingredient (A) is selected from abamectin, acrinathrin, alpha- cypermethrin, acequinocyl, amitraz, benomyl, beta-cyfluthrin, bifenthrin, bioresmethrin, bistrifluron, bromopropylate, chlorethoxyfos, chlorfluazuron, clofentezine, cyfluthrin, cyhalothrin, cypermethrin, cyphenothrin, dodemorph, esfenvalerate, etofenprox, fenvalerate, flucycloxuron, flufenoxuron, hydramethylnon, lambda-cyhalothrin, lufenuron, mecarbam, novaluron, permethrin, phenothrin, silafluofen, tau-fluvalinate, ZXI 8901 (3-(4- bromophenoxy)-a-cyanobenzyl 2-[4-(difluoromethoxy)phenyl]-3-methylbutanoate) and flubendiamide (3-iodo-N-(2-mesyl-1,1-dimethylethyl)-N-{4-[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]-o-tolyl}phthalamide), or a mixture thereof. 
     
     
         8 . The composition according to  claim 1 , wherein the active ingredient (A) is abamectin. 
     
     
         9 . The composition according to  claim 1 , wherein the ratio of surface active compound (B) to the active ingredient (A) is in the range of from 1.6 to 10.0. 
     
     
         10 . The composition according to  claim 1 , wherein the ratio of surface active compound (B) to the active ingredient (A) is in the range of from 1.7 to 7.0. 
     
     
         11 . The composition according to  claim 1 , wherein the amount of active ingredient (A) is in the range of 6 to 10, weight percent and the ratio of (B) to (A) is in the range from 1.5 to 3.0. 
     
     
         12 . The composition according to  claim 1 , wherein the amount of active ingredient (A) is in the range of 2 to 5, weight percent and the ratio of (B) to (A) is in the range from 4.0 to 8.0. 
     
     
         13 . A method of controlling pathogenic damage or pest damage in a plant propagation material, a plant, parts of a plant and/or plant organs that grow at a later point in time, which comprises applying on the plant, part of the plant, plant organs, plant propagation material or a surrounding area thereof a composition derived from a composition according to  claim 1 .