Monitoring Study of Pissodes punctatus Population by Insect Attractants

The dynamic change of Pissodes punctatus population was monitored on Baogai Mount Forest Farm of Baoshan Municipality by applying different attractants. The results showed that 3 types of attractants had better trapping effect. Attractant B (3∶1∶0.002 of (+)-3carene, (+)-limenene and grandisol) trapped the most pest insects. The test of monitoring reliability showed that the natural logarithm of total catches by the 3 types of attractants had pretty good linear relationship with population densities of the plots. There was a good linear relationship between the natural logarithm of total catches by attractant B and the infested ratios. The monitoring results could factually reflect the population densities of Pissodes punctatus in the tested plots.