论文部分内容阅读
研究了三种生物碱对麦蚜的杀虫效果。结果表明:10%皂素烟碱1000倍、40%硫酸烟碱1000倍和0.3%苦参碱300倍对麦蚜的田间防效均稳定保持在98%以上,并能保护麦田中的天敌数量。此3种生物碱与40%氧化乐果乳油作药效对照.防蚜效果相当。对于减少化学农药污染环境,开发我国极其丰富的植物性农药资源,具有极显著的社会、生态和经济效益。
The insecticidal effect of three alkaloids on wheat aphids was studied. The results showed that the field efficacy of 1000% saponin with 10% saponin, 1000 times with 40% nicotine sulphate and 300 times with 0.3% matrine remained above 98% The number of predators. The three alkaloids and 40% omethoate as efficacy control. Aphid equivalent effect. For reducing the pollution of chemical pesticides and developing China’s extremely rich plant-based pesticide resources, has a very significant social, ecological and economic benefits.