Bithienyl compounds of the following structural formula are phototoxic insecticides and acaricides: ##STR1## wherein R.sub.1 is selected from hydrogen, halogen, alkyl, haloalkyl, alkoxy, and haloalkoxy; R.sub.2 is selected from hydrogen and halogen; R.sub.3 is selected from hydrogen, alkyl, phenyl, and thienyl; and R.sub.4 is selected from hydrogen, halogen, alkyl, and haloalkyl.
下列结构式的
联苯化合物是光毒性
杀虫剂和
杀螨剂:其中R₁从氢、卤素、烷基、卤代烷基、烷氧基和卤代烷氧基中选择;R₂从氢和卤素中选择;R₃从氢、烷基、苯基和
噻吩基中选择;R₄从氢、卤素、烷基和卤代烷基中选择。