美洲斑潜蝇在不同温度下的飞行能力

利用昆虫飞行磨测试了美洲斑潜蝇Liriomyza sativae在18℃到36℃条件下的飞行能力。结果表明：在33℃下美洲斑潜蝇的飞行能力最强，个体最大飞行距离、最高飞行速度和最长飞行时间分别为8.22 km、1.10 km/h和253.50 min,其平均飞行距离为0.95 km。其飞行的适温范围是21～36℃，18℃为其飞行的下限温度。从18～33℃，随着温度的升高平均飞行距离（0.08～0.95 km）和平均飞行时间(6.57～47.94 min)也在增加，但到36℃又开始下降；雌虫比雄虫飞行能力强。在理论上，美洲斑潜蝇能靠自身飞行扩散0.08～0.95 km。

Influence of temperature on flight potential of Liriomyza sativae Blanchard

This paper deals with the flight ability of adult Liriomyza sativae at temperatures from 18℃ to 36 ℃,which was determined using a 32 channel, computer-monitored flight mill system. Their maximum flight distance，speed and duration reached 8.22 km, 1.10 km/h and 253.5 min at 33℃, respectively. The suitable temperatures for their flight ranged from 21℃ to 36℃ and the average flight distances were 0.32～0.95 km for the female and 0.22～0.78 km for the male at these temperatures. The flight distance, speed and duration increased with increasing temperature between 18℃ and 33℃. The flight ability of the female was greater than the male. These results suggested that L. sativae could actively migrate with the maximal dispersal distance of about 0.95 km.