Journal of Entomology1812-56701812-5689Asian Network for Scientific Information10.3923/je.2008.290.294AlzoubiSaied CobanoguSultan 4200854The trials were carried out, under greenhouse conditions
in Ankara-Turkey to control the two spotted spider mite (TSSM) Tetranychus
urticae Koch as part of a mite management program in 2007 season,
on cucumber (Cucumis sativus L.). Three different control methods
namely, chemical (by using hexythiazox, bifenthrin and dimethoate), biological
(by releasing Phytoseiulus persimilis and Amblyseius californicus)
and combination between chemical and biological control were applied and
evaluated by two different methods. One of them, depended on measuring
the feeding damage rate of TSSM by computer software (Compu Eye, leaf
and Symptom Area). The other one is common in used and rely on calculation
the percentage efficacy by mathematical formula (Henderson and Tilton
formula). The ANOVA analysis of results of the tested evaluation methods
could separate the mean of values of percentage efficacy and feeding damage
rate and relatively assemble into counterpart groups and gave same decision
in evaluation the effectiveness of the control methods. The results indicated
that hexythiazox and dimethoate could not repress the TSSM population,
which gave significant damage rate in its treatments and the efficacy
of mention pesticides not provided well controlling, which was low to
TSSM when compared with bifenthrin, predators and combination of chemical
and predators. While, bifenthrin and hexythiazox combined with predators
or bifenthrin alone could repress well the TSSM population so that, the
damage rate was low, which its percentage efficacy was high. Feeding damage
rate, which was assessed by computer software may be satisfactory recommend
to evaluate the effectiveness of control methods against spider mites
under IPM programs.]]>Alchanatis, V., A. Navon, I. Glazer and S. Levski, 200077289296Alzoubi, S. and S. Çobano'lu, 2006214956Bakr, E., 2005Tetranychus urticae Koch.]]>129173175Henderson, C.F. and E.W. Tilton,195548157161Iatrou, G., C.M. Cook, G. Stamou and T. Lanaras, 199519581591Cote, K.W., E.E. Lewis and P.B. Schultz,2002Phytoseiulus persimilis and their effects on Tetranychus urticae. ]]>37906909Kim, Y.H., 2001Tetranychus urticaem by a Predatory Mite Phytoseiulus Persimilis. ]]>1st Edn.,Nachman, G. and R. Zemek,2002252742O'Neal, M.E., D.A. Landis and N. Isaacs, 20029511901194Skaloudova, B., V. Krivan and R. Zemek, 2006538191Tomkiewicz, J., H. Skovgard, G. Nachman and M. Munster-Swendsen, 1993Mononychellus tanajoa (Bondar) (Acarina: Tetranychidae).]]>172940Verkerk, R., 20012001Wilson, L.J., G.A. Herron, L.R. Bauer and D.A. Lally, 1999Tetranychus urticae Koch (Acari: Tetranychidae) in cotton.]]>383033