The green oak tortrixGreen Oak Tortrix, Tortrix viridanaViridana L. is a distinct green moth whose larvae feed on tree leaves, especially oak. Under such circumstances, research to find secure, simple, convenient and reliable control is essential. In this study, the sensitivity of 3rd instar larvae oak leaf roller moth, to Bacillus thuringiensis (B.t), Neemarin (neem toxicant), Henna (Lawsonia inermis L.) in laboratory and forest conditions were studied. The LC50 value of B.t, Neemarin and Henna on T. viridana by probit analyses was recorded after 24, 48 and 72 hours and filed experiments for estimate mortality on 3rd larval instar were analyzed by General Linear Model-Univariate (GLM) and mean separation tests were conducted with Tukey's HSD with SPSS statistical analysis software. The LC50 value for B. thuringiensis, Neemarin and Henna essence after 24 hours on 3rd instar were calculated 843.17, 1806.33 and 649.22 ppm under laboratory conditions and 1361.00, 2046.73 and 674.86 ppm in forest conditions, respectively. In evaluate effects of three agents in mixing form on 3rd instar larvae additive effects were observed by B.t + Henna + Neemarin treatment. In field experiments maximum and minimum mortality in 1DAT, 3DAT, 7DAT and 14DAT were observed in Bt +Henna and Henna treatments, respectively. The results of this experiment showed that combination of Bt with Henna in the integrated management against this pest can be recommended.
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