东方盔蚧在山楂上主要危害幼树,虫口密度大时,可严重影响幼树枝条的生长发育,使枝条难以形成花芽,已成为山楂幼树早果丰产的大敌。为了保护山楂幼树,促其早果丰产,我们于1987年在本县石家河乡沈洪村青草洼山楂园进行了东方盔蚧药剂防治试验,取得了较好的效果。 Oriental helmet scale hawthorn on the main harm to saplings, population density, can seriously affect the growth and development of saplings branches so difficult to form flower buds, has become the hawthorn early yield high yield enemies. In order to protect the young hawthorn tree, and promote its early fruit yield, we were in 1987 in the village of Shijiahe Shen Hong grass Hawthorn Hawthorn Park Eastern helical scale drug prevention and control experiments, and achieved good results.