An insecticidal composition containing a guanidine derivative of the formula: ##STR1## wherein R.sup.1 is an optionally substituted homocyclic or heterocyclic group, n is 0 or 1, R.sup.2 is a hydrogen atom or an optionally substituted hydrocarbon group, R.sup.3 is a primary, secondary or tertiary amino group, X is an electron attractive group such as nitro or trifluoroacetyl group, provided that when n is 0, R.sup.1 is an optionally substituted heterocyclic group or a salt thereof.
一种杀虫组合物,包含以下式子的
脲类衍
生物:##STR1## 其中,R1是可选取的取代的同环或异环基团,n为0或1,R2是氢原子或可选取的取代的碳氢基团,R3是一级、二级或三级
氨基团,X是电子吸引基团,例如硝基或三
氟乙酰基团,但当n为0时,R1是可选取的取代的异环基团或其盐。