麻疯树新害虫——黑额光叶甲

The First Record of Physosmaragdina nigrifrons (Hope) as an Important Pest of Jatropha curcas L.

[目的]介绍重要能源树种麻疯树新发现的重要害虫——黑额光叶甲[Physosmaragdina nigrifrons(Hope)]。[方法]通过2013年5月2次对贵州省罗甸县境内麻疯树林分的病虫害种类进行调查以及查阅相关资料,对黑额光叶甲的识别特征及其对麻疯树的为害状况进行了介绍。[结果]黑额光叶甲在罗甸地区麻疯树林分上的为害株率达38%(n=100),主要以成虫取食刚萌发伸展的幼嫩新叶进行为害;介绍了该虫成虫的形态特征,并据其确定了该虫的分类地位;最后介绍了该虫的分布及寄主。[结论]为该害虫的有效控制及进一步研究提供了参考。

[ Objective ] The aim was to introduce a new pest Physosmaragdina nigrifrons （Hope） which is as an important pest of Jatropha curcas L.. [ Method] According to two field investigations on P. nigrifrons in Luodian County of Guizhou Province in May, 2013, damage characteristics and biological features of P. nigrifrons were briefly presented and discussed. [ Result] The damage rate of P. nigrifrons in J. curcas in Luodian County reached 38% （n = 100）, and the pest damaged J. curcas through feeding young leaves mainly by adults. The bio- logical features of P. nigrifrons were introduced, and its taxonomic status was also identified based that. Finally i the distribution and host of P. nigrifrons were introduced. [ Conclusion] The research results provide reference for the control and further studv on P. nigrifrons.