今年我国北方持续干旱，不少地区出现大量蝗虫，由于灭治及时，没造成严重灾害。灭蝗的办法主要是喷洒农药，包括飞机大面积喷药。然而，农药也会造成污染。新疆农垦区动员群众把十万只鸭子放到田里去吃蝗虫，一只鸭子一天能吃四百多只蝗虫，没有农药也把虫灾消灭了，鸭子还迅? This year, the drought in northern China continued. Many locusts were found in many areas. Because of the timely elimination of diseases, no serious disasters were caused. Off the locust approach is mainly spraying pesticides, including spraying a large area aircraft. However, pesticides can also cause pollution. Xinjiang Land Reclamation District to mobilize the masses put thousands of ducks into the fields to eat locusts, a duck a day to eat more than 400 locusts, pesticides also eliminate the pests, ducks quickly?