Life table parameters including net reproductive rate (R0), finite rate of increase (λ), doubling time for population (dt) and mean generation time (T) of Eotetranychus kankitus Ehara were studied at five constant temperatures. The intrinsic rate of natural increase (rm) of E. kankitus was compared to those of two associated mites on citrus, Panonychus citri (McGregor) and Agistemus exsertus Gonzalez. The highest mean number of eggs (87.96 eggs/female), with daily oviposition rate of 2.06 eggs/female/day, was obtained at 20°C whereas the highest daily oviposition rate (3.73 eggs/female/day ) was observed at 35°C with a total of 55 eggs produced by each female. At 15°C , the lowest R0 (16.64) and the longest generation time (T=48.62 days) resulted in a lowest rm (0.058) and longest dt (11.95 days). The highest rm (0.223) and λ (1.2493) were obtained at 35°C and population can double in only 3.11 days. The rm values of E. kankitus at the five tested temperatures are lower than those of P. citri and A. exsertus.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 4 • No. 1