%0 Journal Article
%T Ecological control effects of Litchi chinensis-Desmodium intortum complex plant ecosystem on litchi pests<br>荔枝-旋扭山绿豆复合种植系统对荔枝害虫的生态调控作用
%A OUYANG Gecheng
%A YANG Yueping
%A LIU Deguang
%A XIONG Jinjun
%A HUANG Mingdu
%A <br>欧阳革成
%A 杨悦屏
%A 刘德广
%A 熊锦君
%A 黄明度
%J 应用生态学报
%D 2006
%I 
%X An investigation on the community structure and dynamics of litchi pests and their natural enemies in constructed Litchi chinensis-Desmodium intortum complex plant ecosystem and single L.chinensis ecosystem showed that the total amount of litchi pests in the complex plant ecosystem was 61.27% of that in the single ecosystem in whole year,and only 50.45% in May,the key time for fruit development,which suggested that there was an interaction between D.intortum and L.chinensis.D.intortum and L.chinensis had a few common pests,but many common natural enemies.D.intortum florescence in winter provided shelter and substitutive food for the natural enemies of pests to survive in the extreme environmental conditions in winter.L.chinensis florescence was on the heel of D.intortum florescence,which provided better conditions for the natural enemies to survive and multiply.During florescence and fruit development stages of L.chinensis(from March to June),the predator/prey ratio in complex plant system was 4.22,2.34,2.2 and 20.63 times of that in single plant system in March,April,May and June,respectively,indicating the good control effect on pests of L.chinensis.
%K Litchi chinensis
%K Desmodiun
%K intortum
%K Complex plant ecosystem
%K Pest
%K Ecological control<br>荔枝
%K 旋扭山绿豆
%K 复合种植系统
%K 害虫
%K 生态调控
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=7CA514AF3285D1BB&yid=37904DC365DD7266&vid=BCA2697F357F2001&iid=CA4FD0336C81A37A&sid=70AC2EF7F2065E09&eid=E2546871E5B846EF&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=1&reference_num=21