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谷蠹主要为害玉米、高粱、稻谷、小麦、豆类及面粉等。成虫和幼虫均能为害,蛀食种子的胚或将粮粒蛀成空壳。
Grubs mainly harm corn, sorghum, rice, wheat, beans and flour. Both adults and larvae can damage, eclipse embryos, or mow the grain into empty shells.