两种生物药剂对辣椒蚜虫的防治对比研究

Xiang Cun Ke ji(2015)

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Abstract
本文通过使用1%苦参碱可溶性液剂和25%吡蚜酮悬浮剂两种生物药剂以及70%可湿性粉剂吡虫啉化学药剂,研究了不同药剂、药剂不同剂量和施药后不同天数对辣椒蚜虫的防效.结果表明:在施药3d后, 75 g/hm2的25%吡蚜酮悬浮剂和70%吡虫啉可湿性粉剂防效可达到98%,但在施药7 d,防效却分别下降到83%和75%,而5.25mL/hm21%苦参碱可溶性液剂的防效随着施药天数一直增加,7 d后达到87%,说明该药剂杀虫作用迟缓,但是药力更加持久.
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