Trapping efficacy comparison and monitoring on Monochamus alternatus
To monitor and control Monochamus alternatus adults efficiently,we selected three common kinds of attractants on market to trap the adults in forest via a"mark-release-recapture"technique.The result was as follows:At the early stage of emergence,more male beetles trapped than females.Adding longicorn pheromone could effectively improve the effect of attractants,and more female beetles was trapped than males.There captures accounted for 6.45%of the total trappings.With 11.56%recapture rate,we estimated a total of 9330 adults(4582 males and 4748 females)within the experimental field.The trapping quantity,purity and timeliness of attractants produced by PEROBIO were the best winsome,but worse trapping effects on 1-20 d emerging adults than Hangzhou Pheromone.PEROBIO attractant could be used in monitoring M.alternatus,and Hangzhou Pheromone attractant could be recommended in trapping M.alternatus.
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