摘要
[Objective]The paper was to screen out effective insecticides against main lepidopteran pests of cauliflower.[Method]Field trials were carried out in 2018,and 11 treatments were designed in the test.The population decline rate and corrected control effect were calculated.[Result]16%Indoxacarb+tebufenozide EC and 35%methoxyfenozide+indoxacarb SC had quick bioactivity and persistence,and the control effects at 1 and 10 d post spraying were greater than 85%.11%Emamectin benzoate+lufenuron ME,1 billion PIB/mL of Autographa californica NPV SC and 10%alpha-cypermethrin+lufenuron EC had good persistence,and the control effect at 10 d post spraying was greater than 90%.[Conclusion]Compound preparations of indoxacarb and tebufenozide or methoxyfenozide are recommended for controlling lepidopteran pests of cauliflower.
[Objective] The paper was to screen out effective insecticides against main lepidopteran pests of cauliflower. [Method] Field trials were carried out in 2018, and 11 treatments were designed in the test. The population decline rate and corrected control effect were calculated. [Result]16% Indoxacarb+tebufenozide EC and 35% methoxyfenozide+indoxacarb SC had quick bioactivity and persistence, and the control effects at 1 and 10 d post spraying were greater than 85%. 11% Emamectin benzoate+lufenuron ME, 1 billion PIB/mL of Autographa californica NPV SC and 10% alpha-cypermethrin+lufenuron EC had good persistence, and the control effect at 10 d post spraying was greater than 90%. [Conclusion] Compound preparations of indoxacarb and tebufenozide or methoxyfenozide are recommended for controlling lepidopteran pests of cauliflower.
