• 研究报告 •

### 黄猄蚁对柚子花期害虫的影响

1. Yunnan Institute of Tropical Crops, Jinghong 666100, Yunnan, China
• 出版日期:2010-02-10 发布日期:2010-02-10

### Effects of Oecophylla smaragdina on the insect pests of grapefruit at flowering stage.

ZHANG Zu-bing|GAO Shi-de;ZHOU Ming|LI Guo-hua

1. 云南省热带作物科学研究所|云南景洪 666100
• Online:2010-02-10 Published:2010-02-10

Abstract: In March 2008, the flowering stage of grapefruit,  the  plantation was divided into two sections, one section was introduced with Oecophylla
smaragdina, and the other was used as the control. 20 branches were selected from each section to investigate the main pests (Contarinia citrt and Thrips spp.) of grapefruit and the percentage of undamaged leaves. In control section, the individual numbers of the two pest species maintained at a higher level, and their population density and the damaged rate of grapefruit flowers were significantly higher than those in the O. smaragdina introduced section (P<0.05). The existence of O. smaragdina decreased the C. citrt-damaged rate of grapefruit flowers by 70%-80% and the Thrips spp.damaged rate of grapefruit flowers by approximately 60%, and increased the percentage of undamaged leaves by 30%. It was suggested that in the pest control of grapefruit plantation, the roles of  O. smaragdina should be fully considered, and its protection and introduction should be strengthened.