【摘要】 采取踏查和标准地调查相结合的方法,对郴州市北美橡树有害生物种类进行了详细调查,共记录北美橡树有害生物25种,其中病害7种,虫害16种,有害植物1种,有害动物1种;北美橡树重度危害的有害生物有:守枯病、溃疡病、铜绿丽金龟、栎树叶甲、卷叶蛾、蝽象、绕枝沟胫天牛、星天牛,受害株率均大于25%;利用调查数据对不同土壤肥力的北美橡树林主要有害生物种类及危害情况进行了分析,结果表明:土壤肥力差的北美橡树林有害生物明显多于土壤肥力好的橡树林,且危害重。更多还原

【Abstract】 The pest species of North American oak in Chenzhou City were investigated in detail by means of step survey and standard field survey. A total of 25 species of pest species were recorded, including 7 diseases, 16 insect pests, 1 harmful plant and 1 harmful animal. The pest species of North American oak in Chenzhou City were as follows: Fusarium wilt, Canker disease, Anomala corpulenta Motschulsky, Oak leaf beetle, Leaf roller moth, Pentatomidae, Oncideres cingulata and Anoplophora chinensis. The results showed that there were more pests in North American oak forest with poor soil fertility than in oak forest with good soil fertility, and the harm was serious.更多还原