Suspension concentrate compositions of arylpyrrole insecticidal and acaricidal agents

A stable suspension concentrate composition which comprises about 10% to 50% by weight of a particulate aryl-pyrrole compound having a volume mean diameter of about 0.5 to 4 microns and having the structural formula ##STR3## wherein X is H, F, Cl, Br, I or C.sub.1 -C.sub.4 haloalkyl;

• Y is F, Cl, Br, I C.sub.1 -C.sub.4 haloalkyl or CN;
• W is CN or NO.sub.2 ;
• A is C.sub.1 -C.sub.4 alkyl optionally substituted with
• one to three halogen atoms,
• one cyano,
• one hydroxy,
• one C.sub.1 -C.sub.4 alkoxy,
• one C.sub.1 -C.sub.4 alkythio,
• one phenyl optionally substituted with C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, or one to three halogen atoms,
• one phenoxy optionally substituted with one to three halogen atom, or
• one benzyloxy optionally substituted with one halogen atom,
• C.sub.1 -C.sub.4 carbalkoxymethyl,
• C.sub.3 -C.sub.4 alkenyl optionally substituted with one to three halogen atoms,
• cyano,
• C.sub.3 -C.sub.4 alkynyl optionally substituted with one halogen atom,
• di-(C.sub.1 -C.sub.4 alkyl)aminocarbonyl, or
• benzoyl optionally substituted with one to three halogen atoms or one to three C.sub.1 -C.sub.4 alkyl groups:
• L is H, F, Cl or Br;
• M and R are each independently H, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.1 -C.sub.3 -alkylsulfinyl, C.sub.1 -C.sub.3 alkylsulfonyl, cyano, F, Cl, Br, I, nitro, C.sub.1 -C.sub.3 -haloalkyl, R.sub.1 CF.sub.2 Z, R.sub.2 CO or NR.sub.3 R.sub.4, or when M and R are on adjacent positions and taken with the carbon atoms to which they are attached they may form a ring in which MR represents the structure:
• --OCH.sub.2 O--, --OCF.sub.2 O--, --OCR.sub.6 R.sub.7 CR.sub.8 R.sub.9 O--, --OCH.sub.2 CH.sub.2 --, --OCH.sub.2 CH.sub.2 CH.sub.2 -- or --CH.dbd.CH--CH.dbd.CH--;
• Z is S(O).sub.n or O;
• R.sub.1 is H, F, CHF.sub.2, CHFCl, or CF.sub.3 ;
• R.sub.2 is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, or NR.sub.3 R.sub.4 ;
• R.sub.3 is H or C.sub.1 -C.sub.3 alkyl;
• R.sub.4 is H or C.sub.1 -C.sub.3 alkyl or R.sub.5 CO;
• R.sub.5 is H or C.sub.1 -C.sub.3 alkyl;
• R.sub.6 R.sub.7 R.sub.8 and R.sub.9 are each independently hydrogen, halogen or C.sub.1 -C.sub.3 alkyl;
• and
• n is an integer of 0, 1 or 2, about 0.1% to 2% by weight of a dispersing agent selected from the group consisting of the salts of the condensation products of formaldehyde with the sulfonation products of polycyclic aromatic compounds;
• the salts of polyacrylic acids;
• the condensation products of fatty acids or aliphatic amines or amides containing at least about twelve carbon atoms in the molecule with ethylene oxide and/or propylene oxide;
• fatty acid esters of glycerol, sorbitan, sucrose or pentaerythritol and their condensation products with ethylene oxide and/or propylene oxide;
• condensation products of fatty alcohols or alkyl phenols with ethylene oxide and/or propylene oxide and their sulfates or sulfonates;
• and alkali or alkaline earth metal salts of sulfuric or sulfonic acid esters containing at least ten carbon atoms in the molecule, about 0.5% to 5% by weight of a steric stabilizer selected from the group consisting of polymers of ethylene oxide and copolymers of ethylene oxide and propylene oxide, about 0.1% to 1% by weight of a suspending agent consisting essentially of one or more natural or synthetic clays or silicates, about 0.01% to 0.5% by weight of a thickening agent selected from the group consisting of xanthan gum, carrageenan, pectin, gum arabic, guar rubber, the methylation products, carboxyalkylation products and hydroxyalkylation products of cellulose or starch derivatives, polyacrylates, polymaleinates and polyvinylpyrrolidone with xanthan gums, about 5% to 15% by weight of an anti-freeze agent comprising a glycol, up to about 1% by weight of an antifoam agent comprising an emulsion of a silicone oil or an emulsion of a fatty alcohol, up to about 0.3% by weight of a preservative selected from the group consisting of 1,2-benzisothiazolin-3-one, epichlorohydrin, phenylglycidyl ether, allylglycidyl ether, and formaldehyde compositions, and water.