›› 2005, Vol. 48 ›› Issue (5): 687-691.

• RESEARCH PAPERS • Previous Articles     Next Articles

Effects of rotenone on oviposition and feeding of Monochamus alternatus Hope (Coleoptera: Cerambycidae)

LI Shui-Qing, SUN Jiang-Hua, ZHANG Zhong-Ning   

  1. Chinese Academy of Sciences
  • Online:2005-11-16 Published:2005-10-20

Abstract:

Effects of rotenone on oviposition and feeding of Monochamus alternatus Hope were investigated in the laboratory. The results showed that rotenone strongly deterred the females from ovipositing and significantly inhibited the adults from feeding on the 1-2 year-old twigs. The higher the concentration of rotenone, the stronger the deterrent rate of oviposition and the antifeedant rate. At the concentration of 1 000 mg/L, the deterrent rate of oviposition was 75.63%,and the selective and non-selective antifeedant rate were 72.91 % and 69.50% respectively. The contact toxicity of rotenone against 5 instar larvae was not strong. So it is concluded that rotenone can decrease the spreading of Bursaphelenchus xylophilus by inhibiting feeding behavior of M. alternatus and detract the density of population by deterring the females from ovipositing.

Key words: Rotenone, Monochamus alternatus, deterrent effect, antifeedant effect