Biodiv Sci ›› 1998, Vol. 06 ›› Issue (4): 248-252.  DOI: 10.17520/biods.1998036

Special Issue: 昆虫多样性与生态功能

• 论文 • Previous Articles     Next Articles

A preliminary study on the diversity and control evaluation of natural enemies of coffee stem borers, Xy-lotrechus quardripes and Acalolepta cervinus (Coleoptera: Cerambycidae) in Simao region, Yunnan Province

WEI Jia-Ning1),YU Xin-Wen2)   

  1. 1) Kunming Institute of Zoology , the Chinese Academy of Sciences , Kunming  650223
    2) Department of Forest Protection , Southwest Forestry College , Kunming  650224
  • Received:1997-10-27 Revised:1998-01-12 Online:1998-11-20 Published:1998-11-20

Abstract: The investigation during 1994 ~ 1997 on natural enemies of coffee stem borer , Xylot rechus quardripes and Acalolepta cervinus , indicated that there exists high diversity of natural enemies in coffee ecosystem in Simao region , Yunnan Province. There are at least four hymenopterous predatory species (ants) belonging to Crematogaster ferrarii , C. rogenhof eri , Monomorium chinense and M. pharaonis , two hymenopterous parasitoid species belonging to Pristaulacus intermedius (Aulacidae) , Iphiaulax rufus , and two dermaptera predatory species belonging to Labidura riparia and Nesogaster sp. . Among them , C. ferrarii and C. rogenhoferi showed the highest predatism with nearly 50 % , Pristaulacus intermedius showed higher parasitism with 8 % and occured almost in all seasons , and L abidura riparia showed higher predatism with 10 % and could be found almost all the year round. Therefore , these four natural enemies species seemed to be the most important agent for biological control of coffee stem borers population. Furthermore , we suggested that chemical pesticide should be reduced and the ecosystem of coffee plant should be protected and improved , so that natural enemy could exert their function of biological control effectively.