柑橘小实蝇生物学特性与温度的关系

为有效控制柑橘小实蝇的发生、蔓延和危害,通过对其2009～2010年室外饲养观察,结果表明:柑橘小实蝇生物学特性与温度有着十分密切的关系,温度不仅对雌虫产卵前期长短和产卵所需时间有明显影响,而且当平均温度在20.3～29.9℃之间时,成虫交配初见至终见期随温度升高而延长;在不同的温度时段成虫产卵期和每只产卵粒不同;幼虫历期随着温度升高而天数缩短;成虫对低温敏感度不高;在本市不能越冬;随着温度的升高羽化率降低等结论。这将对柑橘小实蝇防控技术研究、预测预报提供科学依据,从而确保衢州市柑橘安全生产和农村稳定。

The relationship between the biological characteristics of Citrus fruit flies and temperature

In order to control the spread and hazard of small fruit flies effectively, the outdoor breeding test was engaged from 2009 to 2010. The results show that there is a high correlation relationship between the biological characteristics of small fruit fly and the temperature. The temperature influences the pre-spawning length and the time of the spawning significantly. While the average tem- perature is in the range of 20.3-29.9~C, the period from the adults＇ first mating to the last mating prolonged with the increasing of temperature. In different temperature period the spawning time and number of ovum for each of the adults are different, and the larval duration shortens with the increasing of temperature. The adults are not sensitive to low temperature and can＇t survive through the winter, and its emergence rate decreases while the temperature increases. Above will provide scientific basis for small fruit fly preven- tion and control technology research and forecasting of citrus, and consequently ensure the safety of citrus production and the rural stability in Quzhou.