tailieunhanh - Influence of temperature on life table parameters of the predaceous mite euseius finlandicus (Oudemans) (Acari: Phytoseiidae)

This study determined the differences in development time, survival, and fecundity of Euseius finlandicus (Oudemans) (Acari: Phytoseiidae) when feeding on Tetranychus urticae (Koch) (Acari: Tetranychidae). | Turk J Agric For 33 (2009) 29-36 © TÜBİTAK doi: Influence of Temperature on Life Table Parameters of the Predaceous Mite Euseius finlandicus (Oudemans) (Acari: Phytoseiidae) İsmail KASAP Çanakkale Onsekiz Mart University, Agricultural Faculty, Department of Plant Protection, 17020, Çanakkale - TURKEY Received: Abstract: This study determined the differences in development time, survival, and fecundity of Euseius finlandicus (Oudemans) (Acari: Phytoseiidae) when feeding on Tetranychus urticae (Koch) (Acari: Tetranychidae) together with birch pollen at 16, 20, 25, and 30 ± 1 °C, 65 ± 10% RH, and 16:8 photoperiod under laboratory conditions. Total development times for E. finlandicus were , , , and days for females and , , , and days for males at 16, 20, 25, and 30 ± 1 °C, respectively. Total egg production was highest ( eggs) at 25 °C, whereas daily egg production was highest ( eggs) at 30 °C. Female longevity was , , , and days at 16, 20, 25, and 30 ± 1 °C, respectively. The development threshold for eggs and egg to adult stages were °C and °C for females and °C and °C for males, respectively. Females and males required and degree-days, respectively, to became adult. Euseius finlandicus had the highest intrinsic rate of increase (rm), females/female/day at 30 °C, followed by females/female/day at 25 °C, females/female/day at 20 °C, and females/female/day at 16 °C. Key Words: Birch pollen, development, Euseius finlandicus, fecundity, life table, temperature, Tetranychus urticae Avcı Akar Euseius finlandicus (Oudemans) (Acari: Phytoseiidae)’un Yaşam Parametreleri Üzerine Sıcaklığın Etkisi Özet: Bu çalışmada, 16, 20, 25 ve 30 ± 1 °C sıcaklık, % 65 ± 10 nem değerlerine ve 16:8 saat ışıklanma süresine ayarlı laboratuvar koşullarında, Tetranychus urticae (Koch) (Acari: Tetranychidae) ile birlikte huş ağacı .