The invention relates to 1-carbamoyl-3-phenyl-4-benzyl-.DELTA..sup.2 -pyrazolines of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, methyl halogen, trifluoromethyl, C.sub.1 -C.sub.4 haloalkoxy containing 1 to 7 halogen atoms or C.sub.1 -C.sub.4 haloalkylthio containing 1 to 7 halogen atoms; R.sub.3 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl containing 1 to 7 halogen atoms, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy containing 1 to 7 halogen atoms or alkoxycarbonyl containing 1 to 4 carbon atoms in the alkyl moiety; R.sub.4 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl or trifluoromethyl; R.sub.5 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, trifluoromethyl or C.sub.1 -C.sub.4 alkoxy; and R.sub.6 and R.sub.7 are each independently hydrogen, halogen or trifluoromethyl or R.sub.6 and R.sub.5 or R.sub.7 and R.sub.5 are methylenedioxy; to the preparation of these compounds and to compositions containing them for controlling insects and representatives of the order Acarina, especially plant-destructive feeding insects and soil insects.
本发明涉及式为##STR1##的1-
氨基甲酰基-3-苯基-4-苄基-.DELTA..sup.2-
吡唑啉,其中R.sub.1和R.sub.2各自独立地为氢、甲基卤素、三
氟甲基、含有1至7个卤素原子的C.sub.1-C.sub.4卤代烷氧基或含有1至7个卤素原子的C.sub.1-C.sub.4卤代烷基
硫醚;R.sub.3为氢、卤素、C.sub.1-C.sub.4烷基、含有1至7个卤素原子的C.sub.1-C.sub.4卤代烷基、C.sub.1-C.sub.4烷氧基、含有1至7个卤素原子的C.sub.1-C.sub.4卤代烷氧基或烷氧羰基,烷基部分含有1至4个碳原子;R.sub.4为氢、卤素、C.sub.1-C.sub.4烷基或三
氟甲基;R.sub.5为氢、卤素、C.sub.1-C.sub.4烷基、三
氟甲基或C.sub.1-C.sub.4烷氧基;R.sub.6和R.sub.7各自独立地为氢、卤素或三
氟甲基,或R.sub.6和R.sub.5或R.sub.7和R.sub.5为亚甲二氧基;以及制备这些化合物和含有它们的组合物,用于控制昆虫和Acari目的代表,特别是植物破坏性食草昆虫和土壤昆虫。