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吉丁虫(爆皮虫)是柑桔毁灭性虫害之一,它为害树杆的皮层,致使树皮爆裂,养分、水分运输中断,整枝枯死。城固县桔园公社小北河大队因受吉丁虫危害,绝大部分桔树已处于死亡。近几年来,吉丁虫在桔园公社迅速蔓延,扩展到果园、新丰、前村、中村、西村等大队,造成桔树成片死亡。仅70年一年统计,桔园公社受吉丁虫危害致死砍去的桔树在5％以上,且有大批桔树因受吉丁虫危害造成树势极度衰弱,产量下降,损失很大。在各级领导的重视下,1971年发动群众,抓住关键时期,开展防治工作,大面积防治效果达80％以上,基本上控制了吉丁虫的扩展蔓延。一、吉丁虫发生情况吉丁虫一年发生一代,以不同虫令在树杆内越冬,故次年羽化出洞参差不齐。1971年在
JI bugs (bugs insects) is one of citrus devastating pests, which damage the cortex of the tree trunk, resulting in burst bark, nutrient, water transport interruption, the whole branch dead. Chenggu Orange County Commune Xiaobei River Brigade due to jejuni jeopardize the vast majority of orange trees are at death. In recent years, the rapid growth of jingbit in Orange Park communes, orchards, Xinfeng, ex-village, village, West Village and other brigades, resulting in death of orange trees. Only 70 years a year statistics, the Orange Park commune jellied by jeet Killer killed more than 5% of the orange trees, and a large number of citrus trees due to the damage caused by jindian extremely weak tree, the output decline, a great loss. Under the attention of leaders at all levels, mobilizing the masses in 1971, seizing control of the key period and carrying out prevention and control work has achieved a large-scale prevention and control effect of over 80%, basically controlling the expansion and spread of jylintine. First, the occurrence of jejuni Jitian insects occur a generation a year, with different insects in the winter in the tree stems, so the emergence of the next year, the hole is uneven. 1971 in