关键词: 禾缢管蚜, 飞行能力, 飞行磨

Abstract: The flight performance of laboratory-reared winged adults of the bird cherry oat aphid Rhopalosiphum padi (Linnaeus), was nvestigated with a flight-mill system at several temperature grades (8℃-30℃). The results showed that the temperature range of 12℃-20℃ was suitable for flight of the bird cherry oat aphid, the averageflight distance was 6.614-8.219km and the average time of flight was 5.074-7.003 h.At 15℃, the maximum flight distance and flight duration reached 26. 231km and 21.53h respectively. It was difficult for the bird cherry oat aphid to take off at 8℃, and both the flight distance and flight duration were short after take-off. At 23℃ and above, the aphid was easy to take off, but the flight distance and flight duration were becoming shorter gradually with the rise of temperature. At 30℃, the aphid stopped flying shortly after take-off. The flight speed increased with increase of temperature, the averagespeed was 0.781 km/h at 8℃ and 1.605 km/h at 30℃.

Key words: Rhopalosiphum padi (Linnaeus), flight performance, flight mill