水稻是我市种植面积最大的农作物。多年来，我们在“预防为主，综合防治”植保方针指引下，在稻田用药方面做了─些工作，取得了─定的成绩，如吡虫啉、扑虱灵等新型高效农药得到迅速推广；稻田化学除草已基本普及； Bt、井冈霉素等生物制剂应用面积不断扩大，等等。但近 5 a来 Rice is the largest planting area in our city. Over the years, under the guideline of “prevention-oriented and comprehensive prevention and cure”, we have done some work in paddy field and achieved certain results. For example, new high-efficiency pesticides such as imidacloprid and poppy are rapidly popularized. Chemical weeding has basically popularized; Bt, Jinggangmycin and other biological agents continue to expand the application area, and so on. But in the past 5 years