The present invention relates to a 1,2,4-thiadiazole compound of the formula (I):
wherein R1 represents C3-C7 alkynyl; X represents C4-C7 straight alkylene optionally substituted with one to four of R2, C4-C7 straight alkenylene optionally substituted with one to four of R2, or ethylene-thioethylene optionally substituted with one to four of R4; R2 represents a halogen atom, trifluoromethyl or C1-C4 alkyl; and R4 represents a fluorine atom or C1-C3 alkyl. The 1,2,4-thiadiazole compound has an excellent pest controlling activity, and can effectively control pests such as insect pests, acarine pests and the like.
本发明涉及一种式(I)的 1,2,4-
噻二唑化合物:
其中 R1 代表 C3-C7 烷基;X 代表任选被 R2 的 1 至 4 个取代的 C4-C7 直烯基、任选被 R2 的 1 至 4 个取代的 C4-C7 直烯基或任选被 R4 的 1 至 4 个取代的
乙烯-
硫代
乙烯基;R2 代表卤原子、三
氟甲基或 C1-C4 烷基;R4 代表
氟原子或 C1-C3 烷基。
1,2,4-噻二唑化合物具有极佳的害虫防治活性,可有效防治害虫,如昆虫、螨类害虫等。