Isparta İlindeki Elma Bahçelerinde Zararlı Olan İki Noktalı Kırmızıörümcek Tetranychus urticae Koch Populasyonlarının Bazı Pestisitlere Karşı Direnç Düzeylerinin İncelenmesi

Bu çalışmada elmanın yoğun olarak üretildiği Isparta ilindeki elma bahçelerinde zararlı olan iki noktalı kırmızıörümcek populasyonlarının bazı kimyasallara propargite, chlorpyrifos ve abamectin karşı direnç düzeyleri incelenmiştir. Bütün populasyonların bu ilaçlara karşı LC50 ve LC90 düzeyleri petri kabı – ilaçlama kulesi metodu kullanılarak belirlenmiştir. T. urticae Koch populasyonlarının propargite, chlorpyrifos ve abamectin’e karşı LC50 değerleri sırasıyla 137.69 – 295.07 μ l l-1 saf su, 70.99 – 1219.46 μ l l-1 saf su ve 6.41 – 15.13 μ l l-1 saf su olarak bulunmuştur. Elma bahçelerinden toplanan T. urticae populasyonlarının direnç oranı standart hassas populasyon GSS ile oranlanarak bulunmuştur. Populasyonların direnç oranları propargite için

Anahtar Kelimeler:

Abamectin, chlorpyrifos, propargite, pestisid direnci, Tetranychus urticae, Tetranychidae

Determination of the Resistance Level of Two-Spotted Spider Mite Tetranychus urticae Koch Populations in Apple Orchards in Isparta Province Against Some Pesticides

This study was conducted to determine the resistance of two-spotted spider mites to some pesticides propargite, chlorpyrifos and abamectin used in apple orchards around Isparta province where apple production is intense. The LC50 and LC90 levels of all populations to these pesticides were determined using Petri plate - spray tower method. The LC50 value of Tetranychus urticae Koch populations to propargite, chlorpyrifos and abamectin was found to be 137.69 – 295.07 μ l l-1 distilled water, 70.99 – 1219.46 μ l l-1distilled water and 6.41 – 15.13 μ l l-1 distilled water, respectively. Resistant ratios of populations were calculated by dividing the LC50 values of field populations by that of a susceptible population of T. urticae strain GSS. The resistance ratios for all T. urticae populations ranged from

Keywords:

Abamectin, Chlorpyrifos, propargite, pesticides resistance, Tetranychus urticae, Tetranychidae,

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