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凌源地处辽宁省,栽培杏树历史比较悠久,随着栽植面积的迅速扩大,由于病虫害防治措施没有跟上,导致病虫害数量迅速上升,特别是杏树桑白介壳虫的危害发展的特别快,给杏树生产带来严重损失。杏树桑白介壳虫,简称桑白蚧,别名也叫桑盾介壳虫,属于同翅目,盾蚧科。这种害虫发生十分普遍,危害范围比较广。据调查,桑白介壳虫以2~3年生枝为危
Lingyuan is located in Liaoning Province, the cultivation of almond trees have a long history, with the rapid expansion of planting area, as pest control measures did not keep up, leading to the rapid increase in the number of pests and diseases, especially the development of Almond Sang white scale insect pests particularly rapid development , To bring serious loss of apricot production. Almond tree mulberry white scale insects, referred to as mulberry white scale, alias, also known as Sangdang scale insects, belonging to the Homoptera, Diaspididae. The occurrence of this pest is very common, a wide range of hazards. According to the survey, mulberry white scale insects to 2 to 3-year-old branches at risk