Research Information System
Turkiye Entomoloji Dergisi, vol.34, no.1, pp.53-65, 2010 (SCI-Expanded)
Turkey is one of the most important producing and exporting countries of dried apricots. The dried apricot mites causing serious losses and are important pests all over the world. Carpoglyphus lactis (L.) (Acari: Carpoglyphidae) was known as the most important pest species of dried apricots. This study was carried out at University of Ankara, Faculty of Agriculture, Department of Plant Protection. Biological parameters; development times, reproductive rates, and population growth parameters of C. lactis at three different temperatures (18°C±1, 23°C±1, 28°C±1) and two relative humidities (65%±1, 80%±1) were investigated. The thermal constant at 65% and 80% relative humidities were calculated as 83.68 and 92.41 degree days, respectively. The development threshold values were calculated as 7.55°C and 4.90°C, at 65% RH and for 80% RH. According to the life table data, the intrinsic rate of increase (rm); ranged from 0.15-0.37 female/female/days in the different combinations of temperature and relative humidities. The highest rm for C. lactis obtained is 0.37 at 28°C and 80% RH. The net reproduction rate (RO) ranged from 9.60-21.84 female/female in the different combinations of temperature and relative humidities. Increases in temperatures accelerated the generation period which ranged from 8.06-14.93 days. The shortest generation period was obtained at 28°C and 80% RH.