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稻水象甲自1988年在唐山市发现以来,一直成为影响该区水稻产量的重要因素。几年来,虽已筛选出了一些有效的杀虫剂用于稻水象甲的防治,并确保了当年的水稻产量,但越冬虫量和次年发生量有增无减,随着虫体抗性的增加,每年施药量和施药次数也在增加,这不仅增加了成本投入,也增加了工时投入。鉴于此,我们提出在主抓本田越冬代成虫防治的同时,应重视越冬场所稻水象甲及一代成虫的防治;在化学防治的同时应重视农业防治,尽量压低虫源,减少防治次数。
Since its discovery in Tangshan in 1988, Asiatic weeds have become an important factor affecting the rice yield in this area. Over the past few years, although some effective pesticides have been screened for the prevention and control of rice water weevil and have ensured the current year’s rice production, The increase of sexuality, the amount of drug administration and the number of administrations are also increasing every year, which not only increases the cost input but also increases the man-hours investment. In view of this, we propose that we should pay more attention to prevention and control of rice water weevil and generation of adult beetles in overwintering places while focusing on prevention and treatment of overwintering generations of adults in Honda. We should pay attention to prevention and control of agriculture while minimizing the number of control and prevention and control of insect pests.