摘要
通过踏查和对害虫标本的鉴定,对兰州市五泉山公园古树虫害发生状况进行了调查。结果表明,害虫种类较多,其中同翅目和鳞翅目的害虫种类最多,占害虫种类的80%,如白蜡绵粉蚧(Phenacoccus fraxinus)、棉蚜(Aphis gossypii)、柳干木蠹蛾(Holcocerus vicarius)等。双翅目的柳枝瘿蚊(Rhabdophaga saliciperda)、真螨目的杨始叶螨(Eotetranychus populi)危害也很严重。虫害发生有明显季节特点,不同月份害虫的种类和虫态各不相同,虫口密度也随月份变化,8月虫口密度最大。因此,建议采用物理、化学和生物防治相结合的方法进行综合防治,特别是加大物理和生物防治的力度。
The species and damage of insect pests on ancient and famous trees was investigated at Wu Quan mountain Park of Lanzhou,Gansu province,China,based on reconnaissance and insect pests specimen of identification method.The results indicated that pests species was plenty mainly composited of Orthoptera and Lepidoptera species which accounted for 80% of total pest species,such as Phenacoccus fraxinus,Aphis gossypii,Holeocerus insulanis and so on.In addition,hazard of Diptera＇s Rhabdophaga Saliciperda Duf and Acariformes＇s Eotetranychus populi were also very serious.The occurrence of insect pest exhibited seasonal characteristics,species and stages of pests and larval density varied with months,and the highest larval density was observed in August.Comprehensive control methods that combined physical,chemical and biological method were proposed to control the pests,especially physical and biological control should be strengthened.
出处
《草业科学》
CAS
CSCD
北大核心
2011年第4期661-666,共6页
Pratacultural Science
基金
兰州市科技局科研项目(32008-1-40)
关键词
古树名木
害虫调查
防治对策
五泉山
ancient and famous tree
pests investigation
control strategies
Wuquan mountain
