%0 Journal Article
%T EVALUATION OF THE EFECTIVENESS OF NATURAL ENEMIES<br>昆虫天敌作用的评价
%A Pang Xiongfei
%A <br>庞雄飞
%A 梁文广
%A 曾玲
%J 生态学报
%D 1984
%I 
%X The life table and Morris-Watt mathematical model were used as the methods to analysis the effectiveness of natural enemies of pest insects.Used in this paper is the M-value that if ther component "i" were absent, the index of population trend "I" would increase-by M(si) times as compared whth original index of population trend"I".According to the component analysis of the 1976-1981 year's average life table of the 2nd generation of Cnaphaloc-rocis medinalis Guenee, the M-value showed that the natural enemi...
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=6775A90329E92E7CFC48EA853E3F5ED3&yid=36250D1D6BDC99BD&vid=E158A972A605785F&iid=CA4FD0336C81A37A&sid=D997634CFE9B6321&eid=014B591DF029732F&journal_id=1000-0933&journal_name=生态学报&referenced_num=36&reference_num=0