Western flower thrips, Frankliniella occidentalis (Thripidae) is a polyphagous pest and recorded from a very wide range of plant species, extending severe damages to many crops worldwide, both through feeding damages particularly in young buds, and vectoring tospoviruses. In 1961, the first chemical control failure of F. occidentalis was reported so the other methods had to be applied to IPM program reducing application of pesticides. In this study one cucumber was put in each plastic containers and cucumber was put with an angle 60° in the first treatment and in the second treatment cucumber was put with a zero degree (0d). Experiment was performed with 52 replications. There was significant difference in intrinsic rate of increase Net Reproductive Rate (Ro), mean generation time (T), values of finite rate of increase (λ), gross reproduction rate (GRP) between angle 60° and zero degree cucumber with horizon. It can also be used as a new method for improving F. occidentalis control program.
