【摘要】 分析了 3种施药方法 :叶面喷雾、移栽前穴施药沙、移栽后药剂灌根对温室白粉虱的防治效果。结果表明 :叶面喷雾的方法速效性好、击倒性强 ,喷药后 3d防效高达 96.0 6% ;移栽后药剂灌根的方法防效高 ,施药后 14d防效最高可达 96.2 7% ,持效期长 ,药效持续 2 1d以上 ;移栽前穴施药沙的方法防效偏低。 3种施药方法对黄瓜生长均无不良影响更多还原

【Abstract】 Three pesticide-applying methods were analysed, namely, foliar spray, putting the mixture of pesticide and sand in the transplanting holes before transplantation and irrigating the root range with pesticide solution after transplantation. The results showed that foliar spray showed fast and high control efficacy (95.99%). Post-transplanting irrigation had long (over 21 days) and higher control efficacy (96.27%) Pre-transplanting application of mixture of pesticide and sand was of lower control efficacy. But all the three methods had no negative influence on vegetable quality.更多还原