The relative toxicity of ten acaricides, seven insecticides and five fungicides to the twospotted spider mite, Tetranychus urticae and its predator, Phytoseiulus persimilis was evaluated by a leaf spray bioassay. Six of the acaricides tested, bifenazate, etoxazole, acequinocyl, fenbutatin oxide, flu...
The relative toxicity of ten acaricides, seven insecticides and five fungicides to the twospotted spider mite, Tetranychus urticae and its predator, Phytoseiulus persimilis was evaluated by a leaf spray bioassay. Six of the acaricides tested, bifenazate, etoxazole, acequinocyl, fenbutatin oxide, flufenoxuron and chlorfenapyr were less toxic to P. persimilis adult females than to T. urticae adult females. And P. persimilis adult females treated with six acaricides produced 72~89% as many eggs as untreated adult females. The remaining acaricides showed high toxicity to P. persimilis adult females. Spinosad and abamectin were more toxic to T. urticae adult females than to P. persimilis adult females, but these insecticides caused low survival rates (4~48%) of P. persimilis adult females. The remaining insecticides were more toxic to P. persimilis adult females with different degrees. However, the survival rate and reproduction of P. persimilis adult females treated with tebufenozide were about 84% as much as those of untreated adult females. All of the fungicides except triforine had little effect on P. persimilis adult females. When P. persimilis eggs were treated with bifenazate, acequinocyl, fenbutatin oxide, flufenoxuron and chlorfenapyr, 70~88% of immature predators reached adulthood. However, all P. persimilis eggs treated with etoxazole failed to develop to the namphal stage. Four fungicides (triflumizole, polyoxin B, metalaxyl·mancozeb and oxadixyl·mancozeb) and tebufenozide did not significantly affect the hatch of P. persimilis eggs. P. persimilis adult females survived on a diet of T. urticae eggs treated with bifenazate, etoxazole, acequinocyl, fenbutatin oxide, flufenoxuron and chlorfenapyr, and their reproduction, prey consumption and the sex ratio of the progeny were not substantially affected. It may be suggested from these results that five acaricides, four fungicides and one insecticide described could be incorporated into the integrated mite management system with P. persimilis on roses.
The relative toxicity of ten acaricides, seven insecticides and five fungicides to the twospotted spider mite, Tetranychus urticae and its predator, Phytoseiulus persimilis was evaluated by a leaf spray bioassay. Six of the acaricides tested, bifenazate, etoxazole, acequinocyl, fenbutatin oxide, flufenoxuron and chlorfenapyr were less toxic to P. persimilis adult females than to T. urticae adult females. And P. persimilis adult females treated with six acaricides produced 72~89% as many eggs as untreated adult females. The remaining acaricides showed high toxicity to P. persimilis adult females. Spinosad and abamectin were more toxic to T. urticae adult females than to P. persimilis adult females, but these insecticides caused low survival rates (4~48%) of P. persimilis adult females. The remaining insecticides were more toxic to P. persimilis adult females with different degrees. However, the survival rate and reproduction of P. persimilis adult females treated with tebufenozide were about 84% as much as those of untreated adult females. All of the fungicides except triforine had little effect on P. persimilis adult females. When P. persimilis eggs were treated with bifenazate, acequinocyl, fenbutatin oxide, flufenoxuron and chlorfenapyr, 70~88% of immature predators reached adulthood. However, all P. persimilis eggs treated with etoxazole failed to develop to the namphal stage. Four fungicides (triflumizole, polyoxin B, metalaxyl·mancozeb and oxadixyl·mancozeb) and tebufenozide did not significantly affect the hatch of P. persimilis eggs. P. persimilis adult females survived on a diet of T. urticae eggs treated with bifenazate, etoxazole, acequinocyl, fenbutatin oxide, flufenoxuron and chlorfenapyr, and their reproduction, prey consumption and the sex ratio of the progeny were not substantially affected. It may be suggested from these results that five acaricides, four fungicides and one insecticide described could be incorporated into the integrated mite management system with P. persimilis on roses.
주제어
#칠레이리응애 점박이응애 농약 선택독성
※ AI-Helper는 부적절한 답변을 할 수 있습니다.