- Selcuk Journal of Agriculture and Food Sciences
- Vol: 31 Issue: 3
- Effects of Some Medicinal Plants Extract on Tetranychus cinnabarinus (Boisd.) (Acari: Tetranychidae)...
Effects of Some Medicinal Plants Extract on Tetranychus cinnabarinus (Boisd.) (Acari: Tetranychidae) Nymph and Adult
Authors : Hüseyin Çetin, Buket Kaya
Pages : 116-124
View : 11 | Download : 18
Publication Date : 2017-12-29
Article Type : Research Article
Abstract :Tetranychus cinnabarinus (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 (root), Zingiber officinale (root), Foeniculum vulgare (seed) and Laurus nobilis (leaf) were tested on nymph and adult of the Tetranychus cinnabarinus (Boisd.) (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 (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 (%.3.64, %1.37).Keywords : Bitki ekstraktı, Tetranychus cinnabarinus Boisd., Ergin, Nimf, Toksisite