Use of citric acid derivatives as pesticidal adjuvants
AssigneeBayer CropScience AG
InventorsRichard Andrew Bardsley, Udo Matthias Bickers, Geoffrey Gower Briggs, Shirley Ann Green, Adrienne Elizabeth Pate, Erich Friedrich Sanwald, David Stock
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Abstract
The invention provides the use as a pesticidal adjuvant of at least one citric acid derivative and compositions containing the derivative, which has a log octanol-water coefficient (log P) of 2.6 to 11 and an equivalent hydrocarbon (EH) value of 29 to 47. The invention has been shown to enhance the efficacy of a range of pesticides.
Claims10
A method of enhancing the penetration of a pesticide into a plant or plant tissue comprising applying said pesticide in combination with an adjuvant to said plant or plant tissue infested or liable to be infested by a pest, wherein said adjuvant is a citric acid derivative of the formula (I)
- wherein,
- R1, R2 and R3, which may be the same or different, are C1 to C20 alkyl, C2 to C20 alkenyl or C2 to C20 alkynyl, each of which may be substituted by —OR6, where R6 is hydrogen or alkyl;
- or hydrogen;
- R4 is hydrogen or —C(═O)R5, where R5 is as defined for R1;
- and wherein
- R1, R2, R3 and R4 are chosen such that said derivative has a log octanol-water coefficient (log P) of 2.6 to 11 and an equivalent hydrocarbon (EH) value of 29 to 47.
Dependencies are inferred from the claim text.