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报道了飞机草粗提物对棉铃虫幼虫拒食、毒杀的生物活性。试验表明 ,2 0 g/L飞机草粗提物对 3龄棉铃虫幼虫非选择性拒食率较高 (73 81% ) ;2 0、16g/L飞机草粗提物对棉铃虫幼虫的校正死亡率为 6 9 3%和 6 3 6 %。
The biological activity of crude extract of Platycladus orientalis against cotton bollworm larvae was reported. The results showed that the non-selective antifeedant rate of 20 g / L Aloe vera L. grass to the 3rd instar larvae of Helicoverpa armigera was high (73 81%); Rates were 6 9 3% and 6 3 6%.