Abstract:

In order to explore the flight ability of gypsy moth, this research regarded the female Asian gypsy moth (Lymantria dispar) collected from Inner Mongolia and Hebei as experimental subjects. The maximum flight speed, flight distance, flight time of Asian gypsy moth was recorded using computer-linked flight mills in the laboratory. The results indicated that flight ability between males and females had significant difference, that was to say, males had stronger flight capability than females. The mean flight distance was 6.76 km for males, but 1.85 km for females. This ability was highest at age of 1-old day after emergence. The flight distance and flight time of females showed continuously downward with the increase of day-age. The mean flight distance and time were not significant different between virgin and mated male. Egg-laying in mated moths had a negative influence on flight capability.