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近几年,溧水县水稻纵卷叶螟连续大发生至特大发生,尤其是五(3)代和六(4)代。由于发生量大, 世代重叠,本地虫源与外地虫源合并发生,发生期相应拉长,给我们的防治工作带来了压力,一些农户盲目使用高毒高残留的农药、增加用药量和用药次数, 这样一方面降低了水稻品质,另一方面农户的生产成本提高了。为摸索防治稻纵卷叶螟的高效低毒低
In recent years, Lishui County rice leafroller continuous large to occur particularly large, especially five (3) and six (4) generation. Due to the occurrence of large, overlapping generations, the local source of insects and insects occurred in the field, the occurrence of a corresponding elongated, to our prevention and control work has brought pressure on some farmers blindly use highly toxic and high residual pesticides to increase the dosage and medication This, on the one hand, reduced the quality of rice and on the other hand, the production costs of farmers increased. To explore the prevention and control of rice leafroller with high efficiency and low toxicity