3种不同型号植保无人机施药对水稻几种病虫害的防治效果

Effects of Spraying Pesticides with Three Different Types of Plant Protection Drones on Controlling Rice Diseases and Pests

为明确不同型号植保无人机施药在水稻病虫害防治上的应用效果,开展了田间施用高、低浓度的2种药剂的表面张力、不同载面接触角、田间雾化效果及对病虫害的防效测定。结果表明:同种药剂浓度越高,其表面张力越小,也越容易在载面上展布;大疆T30和极飞P80对药液的雾化效果总体好于大疆T10,对病虫害的田间防效大疆T30略好于极飞P80;除对纹枯病外,2种机型的病虫害田间防效都极显著好于大疆T10。综上,大疆T30和极飞P80适用于田间水稻病虫害的防控。

In order to clarify the application effects of spraying pesticides with different types of plant protection drones on several important rice diseases and pests,the surface tension,contact angle on different loading surfaces,atomization and control effects of the pesticides with high and low concentrations were tested.The results showed that the same pesticide concentration was higher,the surface tension was low,and it was easier to spread on the load surface.DJI T30 and JEFI P80 were better than DJI T10 in atomizing pesticide liquids,and the control effects on rice disease and pests of DJI T30 were slightly better than that of JEFI P80.Except for sheath blight,the control effects on other diseases and pests of DJI T30 and JEFI P80 were all significantly better than that of DJI T10.In conculsion,DJI T30 and JEFI P80 were suitable for using to control rice diseases and pests in the field.