Effects of temperature and photoperiod on the development and reproduction of Adoxophyes honmai (Lepidoptera: Tortricidae)

Abstract

The effects of constant temperature and photoperiod on the development and reproduction of Adoxophyes honmai Yasuda (Lepidoptera: Tortricidae) were investigated. The durations of the larval and pupal stages decreased in the range from 15 to 28°C, but the developmental periods were longer at 30°C than at 28°C. The developmental zero and the thermal constants were calculated to be 9.8°C and 104.1 degree-days for eggs, 9.3°C and 232.6 degree-days for larvae, 11.5°C and 76.3 degree-days for pupae, and 10.3°C and 417.0 degree-days from egg to adult emergence. The temperature significantly affected the number of eggs deposited by a single female, the proportion of eggs hatched, and the longevity of adult females. At both 15 and 20°C, larval and pupal developmental periods were significantly shorter for the long-day length of 16L:8D than for the short-day length of 10L:14D.