Childers, C.C., Abou-Setta, M.M., Nawar, M.S., 1991.
Biology of Eutetranychus banksi: life tables on Marsh grapefruit leaves at different temperatures (Acari: Tetranychidae). International Journal of Acarology, 17: 29-35.
Abstract
The biology of Eutetranychus banksi was studied in the laboratory at temperatures ranging from 15 to 32 deg C, 51-84% RH on grapefruit leaves. Females developed from the egg to adult stage in 29.6, 17.2, 13.1, 11.6 and 9.6 days and males in 27.7, 16.4, 12.0, 10.1, 10.8 and 8.5 days at 15, 20, 25, 28, 30 and 32 deg C, resp. The intrinsic rate of increase was 0.066, 0.123, 0.179, 0.210, 0.224 and 0.190 at these temperatures. The sex ratio was female biased ( less than 80%) at 20-30 deg C, but the proportion of females declined to 68% at 15 deg C and 61% at 32 deg C. The maximum net reproductive rate was 31.26 at 28 deg C, followed by 26.06 and 25.29 at 30 and 25 deg C. Eutetranychus banksi appears to have a higher intrinsic rate of increase between 28-30°C compared to published data for Panonychus citri (McGregor).
