【摘要】 通过系统调查大螟的寄主范围，明确了大螟在不同寄主植物上的转移为害规律，并将大螟的发生分为侨居代、繁殖积累代和主害代。在明确各发生代主要虫源的基础上，提出了虫情预测的技术要点。更多还原

【Abstract】 Through systematic investigation of host range of Sesamia inferens, the emigration and infestation regulations of Sesamia inferens on different hosts was made clear. The occurring period of Sesamia inferens can be divided into emigrating generation, breeding and accumulating generations and main damage generation. The focus of pest forecast techniques was proposed based on the main sources of the occurring generations更多还原