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根粉蚧(种名不详),群众称为萝卜籽虫。早在我区的浪卡子县和贡嘎县就有所发现。但因虫体较小,潜藏于地表下3—5厘米处的麦类作物和禾本科杂草根部,很少发现,未引起人们的重视和研究。今年我们在扎朗县开展农业技术服务工作中,起初在调查春播青稞大面积死苗的原因时,发现充堆三村的300余亩青稞严重死苗,其主要原因是根粉蚧危害所致。经调查,在扎朗的扎唐,扎其,桑伊区和乃东的泽当等地不同程度的均有发生。扎朗的扎唐,扎箕两区较为严重,青稞抽穗灌浆期危害,成片穗子发黄不
Root mealybug (species name unknown), the masses called radish seeds and insects. As early as in our area Langkazi County and Gonggar County found. However, due to the small body, hidden in 3-5 cm below the surface of the wheat crops and grass roots weeds, rarely found, did not arouse people’s attention and research. This year we started agricultural technology service work in Zarang County. When we first investigated the reasons for the large-scale dead seedlings of Spring Sowing in Qingzhu County, we found that more than 300 mu of barley grass died of serious dead seedlings in Chongsan village, the main reason is the harm caused by root mealybugs. After investigation, in Zhangtan Zhaotang, Zhaqi, Sangyi District and the East is the Ze where varying degrees have occurred. Zalang Zhangtang Zha Kei more serious two districts, barley heading stage of the damage, into a piece of yellow ears is not