海南淮山炭疽病和甘薯斜纹夜蛾飞防效果评价

Aerial Control of Yam Anthracnose and Sweet Potato Spodoptera litura in Hainan

为探索无人机在淮山和甘薯病虫害防治中的应用效果,开展了MG-1型八旋翼植保无人机低空喷洒露娜森防治淮山炭疽病、除尽防治甘薯斜纹夜蛾的试验。结果表明:使用无人机喷洒对淮山炭疽病和甘薯斜纹夜蛾有较好的防治效果,加入飞防助剂后,增加了药液润湿面积,增大了雾滴覆盖率和体积中径,显著提高防治效果。

In order to study the control effect on the yam disease and sweet potato pest using unmanned aerial vehicle（UAV）, yam and sweet potato were aerially sprayed at low altitude with 42.8% fluopyram ＋oxime grease SC and 10% chlorfenapyr SC by using an eight rotor UAV（MG-1） to control yam anthracnose and sweet potato spodoptera litura, respectively. The results showed that the use of UAV had a better control effect against yam anthracnose and sweet potato S. litura, and that addition of 1%（v/v）adjuvant into the pesticides for aerial spraying could increase the wet area of pesticide solution, droplet spraying coverage and volume median diameter（VMD）, and then improve the control effect significantly.