Disclosed are selected 5-hydrazono-3-trichloromethyl-1,2,4-thiadiazole compounds of the formula: ##STR1## wherein R is a lower alkyl having 1 to 4 carbon atoms, phenyl, and substituted phenyl in which the said phenyl ring substituents are selected from lower alkyl having 1 to 4 carbon atoms, lower alkoxy having 1 to 4 carbon atoms, halo, hydroxy, nitro and mixtures thereof; and R' and R" are individually selected from hydrogen and lower alkyl having 1 to 4 carbon atoms. These compounds are shown to have foliar fungicidal activity.
本发明公开了式为:##STR1## 的选择性5-
肼基-3-三
氯甲基-
1,2,4-噻二唑化合物,其中R是具有1至4个碳原子的低碳基,苯基和取代苯基,所述苯环取代基被选择为具有1至4个碳原子的低碳基,具有1至4个碳原子的低烷氧基,卤素,羟基,硝基和其混合物; R'和R"分别被选择为氢和具有1至4个碳原子的低碳基。这些化合物被证明具有叶面杀菌活性。