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该文采用久效磷和氧化乐果对钻蛀性害虫楸螟ＯｍｐｈｉｓａｐｌａｇｉａｌｉｓＷｉｌｅｍａｎ的毒力测定，测得久效磷的ＬＤ５０为０．２１３８μｇ／ｇ、氧化乐果的ＬＤ５０为０．０１７７μｇ／ｇ，害虫对该两种农药均很敏感。并提出了采取计算的方法解决供试虫种发育不一致的问题。在计算检测结果时，采用减少两端数值权重的处理方法，提高了检测的精确度。
In this paper, the monocrotophos and omethoate on the borer Pestalotiopsis OmphisaplagialisWileman virulence measured monocrotophos LD50 was 0.2138μg / g, omethoate LD50 0.0177μg / g, pests The two kinds of pesticides are very sensitive. And put forward to take the calculation method to solve the development of the test species inconsistent problems. In calculating the test results, the method of reducing the weight of both ends is adopted to improve the detection accuracy.