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麦穗夜蛾以其幼虫蚕食小麦、大麦、青稞的籽粒,是麦类作物的一大害虫。我区主要分布在铁冶、西果园、湖滩等公社的后山二阴地区。据去年八月中旬对湖滩公社部分地区调查,危害严重。邵家山阳山小麦被害穗率为27%,阴山小麦被害穗率为48%。在改板沟队检查了五个点,定西24号春麦被害穗率为6—11%,甘麦8号被害穗率为6—63%。公社科研
Spodoptera litura eats grains of wheat, barley and barley with its larvae and is a major pest of wheat crops. My area is mainly located in iron smelting, West orchard, Lake Beach and other communes in the mountain after the two Yin area. According to a survey conducted in mid-August last year on some parts of Lake Beach commune, the situation is seriously devastating. Shaojiashan Yangshan wheat spike rate was 27%, Yinshan wheat spike rate was 48%. Check the board in the change of five points, Dingxi 24 spring wheat was spiked rate of 6-11%, sweet corn on the 8th was 6-63% spike rate. Commune research