Development duration and reproduction rate of the brown mite Bryobia rubrioculus Scheuten (Acari: Tetranychidae) were examined on two different apple cultivars (Golden Delicious and Starking Delicious) at 25±1 °C, 65±10 % RH and 16:8 L:D under laboratory conditions. Immature development time of B. rubrioculus was faster on golden delicious (18.5 days) than that on starking delicious (20.5 days). The survival time of B. rubrioculus was 14.2 days on golden delicious, while it was 18.8 days on starking delicious. Females laid on average 1.3 and 1.2 eggs per day and 14.2 and 20.1 eggs over their entire life time on golden delicious and starking delicious apple cultivars, respectively. The net reproductive rate (Ro) was higher on starking delicious (17.62 female/female) than that on golden delicious (12.54 female/female). Mean generation time (To) was longer on starking delicious (26.82 days) than that on golden delicious (23.87 days). Consequently, values of the intrinsic rate of increase (rm) of B. rubrioculus on the two cultivars were similar (rm= 0.107 female/female/day for starking delicious, rm= 0.106 female/female/day for golden delicious)
Primary Language | Turkish |
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Journal Section | Articles |
Authors | |
Publication Date | June 1, 2008 |
Submission Date | February 8, 2014 |
Published in Issue | Year 2008 Volume: 32 Issue: 3 |