摘要
湖南省洞庭湖区的欧美杨、黑杨林,从苗期至成林都不同程度地受到桑天牛(Apriona germari<Hope>)为害,轻则生长受抑,重则死亡,为此,我们根据桑天牛成虫具有补充营养的特性,于1985—1988年在广州军区南湾湖农场,开展了以诱饵树招引诱杀桑天牛成虫的大面积试验工作。一、研究方法及结果 (一)成虫补充营养与产卵量及寿命的关系(见表1)。
This paper deals with a set of techniques using trees [Morus alba L., Broussonetia kazinoki S, et Z., B. papyrifera (L, )Vent] as baits to control the adults of Apriona germari (Hope), which can prevent poplar plantation from being damaged. The methods, simple, economical and easily conducted, can segregate poplar plantation with pest and kill them before oviposition outside the poplar plantation. In the stands sprayed with insecticide there were at most 19 death adults in one clump of bait one day. It costed 0.084 Yuan (RMB) per mu. The mean yearly rate of trees injured reduced by 1.89％, The pest density stabilized with no increase or decrease. But in control stand the average rates of trees damaged and pest density enhanced 31.53％ and 1.07 respectively compared with the stands sprayed with insecticide. The difference is very significant (statistical analysis).
出处
《林业科学》
EI
CAS
CSCD
北大核心
1992年第5期466-470,共5页
Scientia Silvae Sinicae
关键词
杨树
桑天牛
诱饵树
桑树
诱杀
Apriona germary (Hope)
Morus alba L.
Broussonetia kazinoki S. et Z.
Broussonetia papyrifera L. Vent
Bait trees
Poplar
Attraction
