Comparison of Droplet Distribution and Control Effect of Wheat Aphids under Different Operation Parameters of the Crop Protection UAV in the Wheat Flowering Stage

Aphid is one of the main insect pests wheat in flowering stage, so timely and effective control aphids plays an important role ensuring yield. The crop protection Unmanned Aerial Vehicle (UAV) widely used diseases nowadays. In order to screen out suitable operation parameters UAV aphids, this study conducted aphid distribution investigation tests droplet tests. With P20 electric four-rotor (Guangzhou Jifei Technology Co., Ltd., Guangzhou, China) as test equipment, four levels flight speed (FS: 3, 4, 5, 6 m/s) three height (FH: 1.5, 2, 2.5 m) were combined parameters, carried compare density uniformity coverage, by using optimized parameters. results showed that mainly distributed lower layer plant canopy, accounting for more than 90.61%. with increase FS FH, coverage upper layers a downward trend under condition considering boundary overlap spraying width (SW) multi-routes. Through comparison efficiency quality, two combinations A1 3 m/s, FH: 1.5 B1 4 selected effect test. average (92.05%) on was 10.3% higher (81.75%) 7 days after pesticide application, which indicated improving could significantly improve aphids. This result provide reference same type growing stage.