EFFICACY ENHANCER FOR AGRICULTURAL CHEMICALS AND AGRICULTURAL CHEMICAL COMPOSITIONS

摘要

An efficacy enhancer for agricultural chemicals and an agricultural chemical composition are disclosed which each manifest perfect stability even when they are incorporated into given agricultural chemicals at high concentrations and which possess excellent efficacy enhancing actions. A compound of formula (I) is used as the efficacy enhancer [wherein X is -O- or -CONH-, r<1> is a linear or branched alkyl group of 6-20 carbon atoms, a linear or branched alkenyl group of 6-20 carbon atoms, or an alkylphenyl group containing an alkyl group of 6-18 carbon atoms, R<2> is an alkylene group of 1-4 carbon atoms, R<3>, R<4>, and R<5> are identical to or different from one another and at least one of them is a group selected from the group consisting of linear or branched alkyl groups of 6-30 carbon atoms and linear or branched alkenyl groups of 6-30 carbon atoms and the remainders are groups selected from the group consisting of benzyl group, hydrogen, and -(A<2>O)m-H, A<1> and A<2> are independently an alkylene group of 2-4 carbon atoms, n is a numeral of 1-30 on the average, and m is a numeral of 1-15 on the average].