An agricultural or horticultural miticidal composition for controlling mites which cause damage to plants, said miticidal composition comprising (1) a liquid carrier and/or a solid carrier, and (2) as an active ingredient, a trialkyltin compound of the formula ##STR1## wherein R.sup.1 represents a linear alkyl group having 6 to 11 carbon atoms, R.sup.2 represents a hydrogen atom or a methyl group, the total number of carbon atoms of R.sup.1 and R.sup.2 is from 7 to 11, m is an integer of 1 or 2, and X represents a chlorine atom, a bromine atom, a fluorine atom, a hydroxyl group, an acyloxy group, a dithiocarbamate group or a group of the formula --SR.sup.3, in which R.sup.3 represents an alkyl group having 1 to 12 carbon atoms or an aryl group, when m is 1, and a member selected from the class consisting of an oxygen atom, a sulfur atom and a sulfuric acid group when m is 2; and a method for controlling mites using the same.
一种用于控制对植物造成损害的螨虫的农业或园艺杀螨组合物,所述杀螨组合物包括(1)液体载体和/或固体载体,以及(2)作为活性成分的一种三烷基
锡化合物,其
化学式为##STR1##其中R.sup.1代表具有6至11个碳原子的直链烷基基团,R.sup.2代表氢原子或甲基基团,R.sup.1和R.sup.2的碳原子总数为7至11,m为1或2的整数,X代表
氯原子、
溴原子、
氟原子、羟基、酰氧基、二
硫代
氨基基团或式--SR.sup.3的基团,其中R.sup.3代表具有1至12个碳原子的烷基基团或芳基,当m为1时,以及m为2时从氧原子、
硫原子和
硫酸基组成的类中选择的一种;以及使用该方法控制螨虫的方法。