苹果小吉丁虫(Agrilus mali Matsumura)属于果木毁灭性蛀干害虫之一,被视为经济果树的天然'杀手'.为害轻者造成树势变弱,重者则造成树干枯死甚至整株死亡.该虫是一种典型的区域性外来入侵种,目前已被自治区列为补充检疫对象.由...苹果小吉丁虫(Agrilus mali Matsumura)属于果木毁灭性蛀干害虫之一,被视为经济果树的天然'杀手'.为害轻者造成树势变弱,重者则造成树干枯死甚至整株死亡.该虫是一种典型的区域性外来入侵种,目前已被自治区列为补充检疫对象.由于是外来害虫,苹果小吉丁虫在我区几乎没有天敌,这使防治工作变得十分困难,人们也没有找到有效的防治方法,致使虫害每年爆发.除给我区经济造成严重损失外,还威胁着我国经济果树资源中惟一的天然基因库--天山野果林的存在.展开更多
Leptocybe invasa Fisher et LaSalle,an invasive gall-making wasp on trees of Eucalyptus spp.,was newly found in Guangxi,China.In this paper its morphological characters were described.The pest formed galls on the twigs...Leptocybe invasa Fisher et LaSalle,an invasive gall-making wasp on trees of Eucalyptus spp.,was newly found in Guangxi,China.In this paper its morphological characters were described.The pest formed galls on the twigs,midribs and leaf petioles of the host trees.Those caused deformation of twigs and leaves.It severely weakened and eventually stunted the growth of host tree.Currently the infestation rate in the Eucalyptus stands reached up to 100%,therefore,the pest would potentially threaten Eucalyptus plantations in South China.展开更多
文摘苹果小吉丁虫(Agrilus mali Matsumura)属于果木毁灭性蛀干害虫之一,被视为经济果树的天然'杀手'.为害轻者造成树势变弱,重者则造成树干枯死甚至整株死亡.该虫是一种典型的区域性外来入侵种,目前已被自治区列为补充检疫对象.由于是外来害虫,苹果小吉丁虫在我区几乎没有天敌,这使防治工作变得十分困难,人们也没有找到有效的防治方法,致使虫害每年爆发.除给我区经济造成严重损失外,还威胁着我国经济果树资源中惟一的天然基因库--天山野果林的存在.
文摘Leptocybe invasa Fisher et LaSalle,an invasive gall-making wasp on trees of Eucalyptus spp.,was newly found in Guangxi,China.In this paper its morphological characters were described.The pest formed galls on the twigs,midribs and leaf petioles of the host trees.Those caused deformation of twigs and leaves.It severely weakened and eventually stunted the growth of host tree.Currently the infestation rate in the Eucalyptus stands reached up to 100%,therefore,the pest would potentially threaten Eucalyptus plantations in South China.