Effects of Some Medicinal Plants Extract on Tetranychus cinnabarinus (Boisd.) (Acari: Tetranychidae) Nymph and Adult

Authors : Hüseyin ÇETİN, Buket KAYA

Pages : 116-124

View : 18 | Download : 25

Publication Date : 2017-12-29

Article Type : Research Paper

Abstract :Tetranychus cinnabarinus insert ignore into journalissuearticles values(Boisd.); is one of the most important, highly polyphagous pests of a wide range of field and greenhouse crops throughout the world. In this study, ethanol extracts of four plants; Acorus calamus insert ignore into journalissuearticles values(root);, Zingiber officinale insert ignore into journalissuearticles values(root);, Foeniculum vulgare insert ignore into journalissuearticles values(seed); and Laurus nobilis insert ignore into journalissuearticles values(leaf); were tested on nymph and adult of the Tetranychus cinnabarinus insert ignore into journalissuearticles values(Boisd.); insert ignore into journalissuearticles values(Acari: Tetranychidae);. Experiments were performed using 3 cm diameter leaf disks of bean dipped in plant extracts. Plant extracts were used in five different concentrations insert ignore into journalissuearticles values(20%, 10%, 5%, 2.5%, 1.25% w/w);. It was tested three different exposure times, including 24, 48 and 72 hours. The experiments were carried out at 28 ± 1 ̊C temperature, 16 h L time period and 65 ± 5% relative humidity. As a result of the investigation, 20% concentration of all plants extract showed the highest mortality rates in nymph and adult stages. Residual effects of A. calamus and L. nobilis extracts to T. cinnabarinus nymphs were higher in 24, 48, 72 hour exposure times. 72 hour exposure time and at 5% concentration A. calamus and L. nobilis extracts were found toxic against T. cinnabarinus with 97% and 95% dead rates respectively. L. nobilis showed high toxic effect to T.cinnabarinus adults with 83%, 33% and 10% dead rates respectively in 5%, 2.5% and 1.25% concentrations and 72 hour exporsure time. The plant which had the lowest LC50 value in adults and nymphs at 72 hours exporsure time was Laurus nobilis insert ignore into journalissuearticles values(%.3.64, %1.37);.
Keywords : Bitki ekstraktı, Tetranychus cinnabarinus Boisd, Ergin, Nimf, Toksisite