›› 2002, Vol. 45 ›› Issue (1): 80-85.

• 研究论文 • 上一篇    下一篇

温度和湿度对麦长管蚜飞行能力的影响

程登发,李红梅, 孙京瑞, 陈巨莲   

  • 出版日期:2002-02-20 发布日期:2002-02-20

Influence of temperature and humidity on the flight capacity of Sitobion avenae

CHENG Deng-Fa, TIAN Zhe, LI Hong-Mei, SUN Jing-Rui, CHEN Ju-Lian   

  • Online:2002-02-20 Published:2002-02-20

摘要: 利用计算机控制的微小昆虫飞行磨系统测定了温度、湿度对麦长管蚜Sitobion avenae飞行能力的影响。结果表明,适于飞行的温度为12~22℃,湿度为60%~80%。在温度8℃以下或25℃以上,其飞行能力明显降低。在温度18℃时,麦长管蚜的平均飞行时间、飞行距离最大分别为3.101 h、3.676 km。在相对湿度40%、60%和80%时,飞行时间分别为1.573 h、2.272 h和3.032 h,飞行距离与湿度的关系与飞行时间相似。飞行速度随温度的增高而加快,在相对湿度60%左右时,麦长管蚜的平均飞行速度较快。在20℃,相对湿度80%条件下,单个个体的最大飞行时间、最大飞行距离和最大飞行速度可达14.32 h、22.51 km和1.57 km/ h,表现出麦长管蚜具有较强的飞行能力。

关键词: 麦长管蚜, 飞行磨, 飞行能力, 温度, 湿度

Abstract: The grain aphid Sitobion avenae is migratory and seriously infests wheat in China. In this study, flight performances of winged adults of the grain aphid were measured with a 32 channel, computer monitored flight mill system at ten temperatures from 8℃ to 30℃ and three relative humidities (40%, 60%, 80%). The results showed that 12℃~22℃ and 60%~80% RH are suitable for their flight. It was difficult for the aphid to take off at 8℃ and the flight time was shortened significantly. When the humidity increased, the flight time prolonged and the flight distance increased. The flight speed was greater at a RH range of about 60% RH. The maximum flight duration, distance and speed of single aphid were 22.51 h, 14.63 km and 2.05 km/h respectively.

Key words: Sitobion avenae, flight mill, flight capacity, temperature, humidity