Welcome to visit Scientia Silvae Sinicae,Today is

Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (1): 103-108.doi: 10.11707/j.1001-7488.20140116

Previous Articles     Next Articles

Biological Control of Apriona swainsoni (Coleoptera:Cerambycidae) by Applying Three Parasitoid Species

Wang Xiaohong1,2, Yang Zhongqi1, Wang Xiaoyi1, Tang Yanlong1, Zhang Yanlong1   

  1. 1. Key Laboratory of Forest Protection of State Forestry Administration Research Institute of Forest Ecology, Environment and Protection, CAF Beijing 100091;
    2. Hebei United University Tangshan 063009
  • Received:2013-01-25 Revised:2013-10-24 Online:2014-01-25 Published:2014-01-25
  • Contact: 杨忠岐

Abstract:

In this study, three parasitoid insect species were applied for controlling Apriona swainsoni (Longhorn beetle). Sclerodermus pupariae and S. guani (Hymenoptera: Bethylidae) were released to A.swainsoni young larvae (1st-3rd instar) with a 5 :1 ratio, and Dastarcus helophoroides (Coleoptera: Bothrideridae) in A.swainsoni middle-aged to mature larval and pupal stages. The results showed that the average decline of the young larvae population was by 14.84% and 12.57% respectively after releasing S. pupariae and S. guani in 25 days. When releasing adults and eggs of D. helophoroides with parasitoid-host numbers ratio 3 :1 and 10 :1 respectively, the mean decline rate of the longhorn beetle larvae population was by 46.50% and 38.63% in 30 days; and the average decline rate was 60.00% and 52.67% respectively in 60 days. Based on the data of the controlling effects by cutting and splitting the tested trees, four equations were built to evaluate the actual parasitism rate of D. helophoroides, and among them the quadratic function showed the highest correlation coefficient. Additionally, an investigation on the sustainable control impact was carried out for three years after the parasitoids were released and the result showed that D. helophoroides exerted a sustainable control effect on A. swainsoni. The present study indicates that the three parasitoids could be used to effectively control the longhorn beetle.

Key words: Apriona swainsoni, biological control, Sclerodermus pupariae, Sclerodermus guani, Dastarcus helophoroides

CLC Number: