Control Effects of Frankliniella occidentalis by using Trap Plants and Orius laevigatus in Chrysanthemum PVC House

Abstract

F. occidentalis (WFT, western flower thrips) is a major pest in artificial chrysanthemum houses. Nnumber of WFT attracted to yellow sticky trap was highest at trap plant and lowest at 15 and 20m places away from trap plant. Number of WFT attracted to yellow stick trap when trap plant was placed in chrysanthemum house 30 days after planting (resident WFT) was 4.4~7.7 times more than at 5 and 10 m places away from trap plant and when trap plant was placed in chrysanthemum house immediately after planting (resident WFT) was 5.7~9.4 times more at 5 and 10 m places away from trap plant. Number of WFT between the place trap plant located and unlocated was undifferent when cultured chrysanthemum formed flower. In case of the plot that trap plant and natural enemy was used simultaneously, number of WFT was highter then chemicals plot. In case of the plot that trap plant and chamicals (chemicals was sprayed on trap plant only) WFT was controlled in trap plant place only but density of WFT on 5m and 10m places away from trap plant was increased. Therefore, WFT could be controlled effectively by use of trap plant (flowering yellow chrysanthemum) and natural enemy simultaneously.

Management strategies for western flower thrips in vegetable greenhouses in Iran: a review

“…Another research indicated that trap plants are more effective when placed in the chrysanthemum house immediately after planting (resident WFT). Also it was demonstrated that a combination of trap plants and chemical control is useful in the control of F. occidentalis (Choi et al 2013). A novel method, push-pull strategy, involves the behavioural manipulation of insect pests and their natural enemies by the combination of stimuli that acts to make the crops unattractive or unsuitable to the pests (push) while luring them toward an attractive source (pull).…”