6种杀螨剂防治淮山红蜘蛛的田间药效试验

Field control efficacy of 6 acaricides on red mite in Chinese yam

摘要: 进行6种杀螨剂防治淮山红蜘蛛的药效试验, 结果表明:绿颖99%矿物油300倍液、5%尼索朗乳油2000倍液、24%螨危悬浮剂4000倍液、8%中保杀螨乳油2000倍液对淮山红蜘蛛均有较好的防效, 药后3、10、20 d的防效分别为89.40%～91.84%、87.41%～96.08%、84.86%～90.07%, 可在生产上交替轮换使用。

Abstract: Efficacy trial of 6 acaricides on red mite in Chinese yam was conducted. The results showed that 4 acaricides, i.e. 300 times liquid of Lv ying 99% mineral oil, 2000 times liquid of 5% Nisolon EC, 4000 times liquid of 24% Manwei suspension agent and 2000 times liquid of 8% Zhongbao acaricidal cream, acted efficiently in red mite control of Chinese yam, the control effects were increased by 89.40%-91.84%, 87.41%-96.08% and 84.86%-90.07% respectively after treated for 3, 10 and 20 days, they could be used alternately in productive practice.