Comparison of Trap-catch Amount of Dioryctria rubella and Retinia cristata Mothes in Mixed and Pure Pinus kesiya var. langbianensis Stands

Lure catch test of Retinia cristata and Dioryctria rubella was conducted in pure and mixed plots of Pinus kesiya var.langbianensis with other broad-leaved tree species.Catch amounts of Retinia cristata by(E,E)-2,4-Decadienal in mixed plot and pure pine plot were respectively 6.30 and 3.10,and catch amounts of Dioryctria rubella by(Z)-11-hexadecenylacetate in mixed stand and pure pine stand were respectively 3.60 and 2.40.Catch amounts of Retinia cristata and Dioryctria rubella in mixed plot were significently less than those in pure pine plot.