Abstract: A combination of pyrethrum and fatty acid salt materials has been formulated which produces a stable, commercially useful, and environmentally safe pesticide. The specific composition comprises an aqueous solutioon having a pH within the range of 7.5 to 8.8; an aqueous solution comprising about 50% by weight of monocarboxylic acids and their alkali metal salts, where the acid mixture is at least 70% oleic acid and 6% linoleic acid; a pyrethrum extract; a solvent for the pyrethrum, which is preferably a 2-6 carbon alcohol; a trace amount of an antioxidant. The composition is effective against insects of at least the orders Homoptera, Coleoptera, Dermaptera, Hemiptera, and Lepidoptera, and against crustacea of the order Isopoda.

Abstract: A composition and method for killing or controlling mites by contacting them with a mixture of certain organo-tin compounds, preferably tri-(2-methyl-2-phenylpropyl) tin hydroxide, and a salt of a fatty acid, primarily sodium or potassium fatty acid soaps. The components of the composition interact to yield a miticidal activity greater than the activities of the components used separately. The composition has fewer long-term environmental effects than occur with the organo-tin compound used alone.

Abstract: Mixtures of organic insecticides of the organophosphate types or of the carbamate type, with certain fatty acids or their salts, have been found to have enhanced insecticidal activity. The fatty acids found operative are the unsaturated 18-carbon atom ones. The mixtures are toxic to both sucking insects and defoliators. The weight ratio of organophosphate or carbamate to fatty acid can range from about 1:1 to about 1:200 respectively. The amounts of the organophosphate or carbamate required for substantial effectiveness can be reduced significantly by concurrent use of the fatty acid. The fatty acid is more environmentally acceptable than the other types of insecticides mentioned. This unique composition can be used to protect against a broader range of insects.

Abstract: There is disclosed a fungicidal composition comprising (A) a fungicidal compound selected from the group consisting of (i) benzimidazole compounds of the formula ##STR1## wherein W is H, or alkyl carbamoyl; Y is thiazolyl, dihydrothiazolyl, tetrahydrothiazolyl or furyl; Z is H, halogen or alkyl and (ii) benzimidazole related compounds of the formula ##STR2## wherein R.sub.3 is C.sub.1-2 alkyl, and Z is as defined above, and (B) a synergist alkyl pyridinium salt of the formula ##STR3## wherein R is an alkyl containing 8 to 20 carbon atoms; and X is a monovalent anion.

Abstract: The activity of the microbial insecticide, Bacillus thuringiensis (B.t.) Berliner has been found to be synergistically enhanced by the addition of unsaturated 18-carbon fatty acid salts. A synergistic effect with respect to increased larval mortality of the western spruce budworm, Choristoncura occidentalis Freeman was obtained in the C.sub.18 unsaturated fatty acid/B.t. treatments. Enhanced mortality was also observed in C.sub.18 fatty acid/B.t. treatments of the larval form of the silverspotted tiger moth, Halisidota argentata Packard. The increased insecticidal activity of the entomogenous bacteria, Bacillus thuringiensis (B.t.) Berliner by the addition of unsaturated 18-carbon fatty acids represents a significant breakthrough for the expanded use of this microbial insecticide.

Abstract: Mixtures of organic insecticides of the organophosphate types or of the carbamate type, with certain fatty acids or their salts, have been found to have enhanced insecticidal activity. The fatty acids found operative are the unsaturated 18-carbon atom ones. The mixtures are toxic to both sucking insects and defoliators. The weight ratio of organophosphate or carbamate to fatty acid can range from about 1:1 to about 1:200 respectively. The amounts of the organophosphate or carbamate required for substantial effectiveness can be reduced significantly by concurrent use of the fatty acid. The fatty acid is more environmentally acceptable than the other types of insecticides mentioned. This unique composition can be used to protect against a broader range of insects.

Abstract: There is disclosed a fungicidal composition comprising (A) a fungicidal benzimidazole compound of the formula ##STR1## wherein W is H, or alkyl carbamoyl; Y is H, halogen, alkyl, alkoxy, alkyl thio, thiol, carbamic acid ester or hydroxy; Z is H, halogen or alkyl; and (B) a synergist alkyl pyridinium salt of the formula ##STR2## wherein R is an alkyl containing 8 to 20 carbon atoms; and X is a monovalent anion.