%0 Journal Article %A CHEN Xianqun %A LIU Qizhi %A CAO Jingfu %A WEI Taiyang %A SHI Yan %A GUO Lei %T Evaluation of Two Entomopathogenic Nematode Species for Control of Batocera lineolata on Walnut Trees %D 2016 %R 10.16409/j.cnki.2095-039x.2016.04.006 %J Chinese Journal of Biological Control %P 456-461 %V 32 %N 4 %X Safe and effective tactics are needed for control of the white-striped longhorn beetle, Batocera lineolata, an important wood borer of walnut Juglans regia trees in Southwestern China. Two entomopathogenic nematode (EPN) species, Steinernema carpocapsae and Heterorhabditis bacteriophora were tested for their ability to control eggs and larvae of B. lineolata in a gel formulation. Five concentrations (250, 500, 1000, 2000 and 4000 IJs/mL) of these two EPN species were applied in this study. Results showed that the control efficiencies of the two EPNs on eggs and larvae of B. lineolata increased with increasing in their concentrations. The two EPN species could infect the beetle eggs and larvae but beetle mortality was higher for S. carpocapsae. At the concentration of 4000 IJs/mL, the corrected control efficiency of S. carpocapsae and H. bacteriophora were 65.0% and 39.5% against B. lineolata eggs, respectively; 93.8% and 82.4% against B. lineolata larvae, respectively. At the concentration of 2000 IJs/mL, the corrected control efficiency of S. carpocapsae and H. bacteriophora were 48.8% and 32.3% against eggs, respectively; 85.9% and 83.4% against larvae, respectively. It is concluded that the two EPNs when applied at suitable dosage were more effective against larvae than against eggs of B. lineolata and could be an effective control measure for B. lineolata. %U http://www.zgswfz.com.cn/EN/10.16409/j.cnki.2095-039x.2016.04.006