【摘要】 在甘蓝上进行了几种生物农药防治小菜蛾的田间药效试验。结果表明:0 18%氧化苦参碱水剂、1%爱诺虫清乳油、5%绿色来乳油防治效果均较好,且持效期长;2mg LBT苏得利悬浮液防治效果稍差,对照药2 5%溴氰菊酯乳油防治效果最差。更多还原

【Abstract】 Field trial of efficacy of several kinds of biopesticides against Plutella xylostella was conducted. The results show that 018% matrine oxide liquid, 1% avermectin EC and 5% lu se lai EC are better than others and have sustainable control effect. Control effect of 2 mg/L su de li suspended liquid is worse, and that of 25% deltamethrin EC, the contrast chemical treatment, is the worst更多还原