Compounds of the formula: ##STR1## wherein R is hydrogen; alkyl of 1 to 8 carbons; alkylthiomethyl, alkylsulfinylmethyl or alkylsulfonylmethyl wherein alkyl contains 1 to 4 carbons; phenyl; phenylthio; alkylthio, alkylsulfinyl or alkylsulfonyl wherein alkyl contains 1 to 4 carbons; or alkylthio-ethylthio wherein alkyl contains 1 to 2 carbons; R' is hydrogen, methyl or alkylthio of 1 to 2 carbons; R" is hydrogen or methyl; X is oxygen or sulfur; R'" is alkyl of 1 to 2 carbons; and R"" is --OR'" or --S-alkyl of 1 to 4 carbons, are highly useful insecticides which are paricularly valuable when applied to the soil, but are also useful applied to foliage of crops or trees. Especially good control is obtained of corn rootworm, codling moth, thrips, leafhoppers, and nematodes. The compounds are conveniently applied in the form of a composition containing a pesticidal carrier such as an inert solvent or a finely divided inert solid in which case the composition is preferably granulated. An effective application rate is in the range of about 0.1 to about 5 pounds per acre when soil incorporated, and about 0.5 to about 2,000 ppm for foliar applications.
该公式化合物为:##STR1## 其中R为氢;1至8个碳的烷基;烷基
硫甲基,烷基亚砜基甲基或烷基砜基甲基,其中烷基含有1至4个碳;苯基;苯基
硫;烷基
硫,烷基亚砜基或烷基砜基,其中烷基含有1至4个碳;或烷基
硫乙
硫,其中烷基含有1至2个碳;R'为氢,甲基或1至2个碳的烷基
硫;R"为氢或甲基;X为氧或
硫;R'"为1至2个碳的烷基;R""为--OR'"或--S-1至4个碳的烷基,这些化合物是高效的
杀虫剂,尤其在施用于土壤时具有重要价值,但也适用于作物或树木的叶面施用。特别适用于玉米根蠕虫、苹果蠹虫、蓟马、叶蝉和线虫的有效控制。这些化合物可以方便地以含有
杀虫剂载体的形式施用,如惰性溶剂或细粉惰性固体,此时最好是制成颗粒状。有效的施用量范围约为每英亩0.1至5磅(土壤施用时),叶面施用约为0.5至2,000 ppm。