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采用GJ89－I－I型多层多点检测器对散储小麦昆虫种群年变化规律进行研究，结果表明：1．玉米象、书虱、螨类为散储小麦的主要害虫。2．在散储小麦一年四季中，午夜到凌晨时段为害虫多发期。秋季（1992年9月）是害虫高发期。3．散储小麦春冬季仓门对面害虫密度较大；夏秋季金门及仓门对面处害虫密度较大。
The GJ89-I-I multilayer multi-detector was used to study the annual variation of the scattered wheat population. The results showed that: 1. Corn like, book lice, mites as the main pest of scattered storage of wheat. 2. In scattered storage throughout the year in wheat, midnight to early morning pests for multiple periods. Autumn (September 1992) is a period of high pest excretion. 3. Stored wheat spring and winter warehouse door opposite the pest density is larger; summer and autumn Kinmen and warehouse door opposite the pest density.