Dithiacycloalkenyl phosphoric esters of the following formula are effective for the control of soil and foliar insects, acarids and nematodes: ##STR1## wherein R.sub.1 is lower alkyl; R.sub.2 is lower alkoxy or lower alkylthio; R.sub.3 is hydrogen, lower alkyl or phenyl; R.sub.4, R.sub.5 and R.sub.6 are independently hydrogen or lower alkyl; Z is oxygen or sulfur; x is 0 or 1; y is 0, 1 or 2; and n is 0, 1 or 2.
以下公式的二
硫代
环戊烯基
磷酸酯化合物对于控制土壤和叶面昆虫、螨和线虫有效:##
STR1## 其中R.sub.1是低
碳基;R.sub.2是低烷
氧基或低烷
硫基;R.sub.3是
氢、低
碳基或
苯基;R.sub.4、R.sub.5和R.sub.6独立地是
氢或低
碳基;Z是
氧或
硫;x为0或1;y为0、1或2;n为0、1或2。