瓜子黄杨是上海等地主要的绿篱树种,近年来遭黄杨绢野螟的危害日趋严重,特别是随着绿化建设的快速发展,黄杨绢野螟的危害和蔓延的速度也随之加快,瓜子黄杨受害的范围和程度也更广泛更严重。在害虫发生的季节,常常可以看到栽植在公园、街头绿地、工厂和学校等庭院内的瓜子黄杨,由于受该种害虫的危害,树形被破坏,轻者叶片殁缺、枯黄或顶端嫩叶被食呈透明 Euonymus japonicus is the main hedgerow species in Shanghai and other places. In recent years, the damage has been severely harmed by the Cyperus alterniflora, especially with the rapid development of afforestation, the damage and spread of the Pythium borer is also accelerating. The extent and extent of the victimization are also wider and more serious. In the pest occurrence season, you can often see the planting in the parks, green streets, factories and schools in the garden courtyard of the boxwood, due to the damage of pests, the tree is destroyed, the light of the lack of leaves, yellow or top tender Leaves are food was transparent