温湿度对神泽氏叶螨发育历期和产卵量的影响

将神泽氏叶螨Tetranychus kanzawai Kishida分别置于15℃，RH80%；20℃，RH75%；25℃，RH70%；30℃，RH65%；35℃，RH60%的恒温恒湿箱内单个饲养，观察其个体发育、孵化率、存活率和产卵量，结果为：35℃，RH60%条件下，雌、雄一代发育历期最短，为(6.23±0.44)山成螨最高日产卵量13.95±3.72)粒；平均日产卵量7.18±1.56)粒； 从成螨开始产卵至死亡50%产卵期最短，为(9.65±1.53)山卵孵化率72.4%；幼螨存活率84.6%。15℃，RH80%条件下，雌、雄一代发育历期最长，为(27.49±2.23)山成螨最高日产卵量(5±1.21)粒；平均日产卵量(2.04±0.55)粒；从成螨开始产卵至死亡50%产卵期最长，为(28.4±4.06)d：卵孵化率85.6%；幼螨存活率97.0%。15℃，RH80%处理成螨寿命为(35±8.85)d，比20℃，75%处理成螨寿命长(13.9±6.4)d。试验结果表明，不同的温湿度对神泽氏叶螨生长发育有一定的影响，35℃发育速率最快，15℃发育速率最慢，20～30℃为最适发育温度。

INFLUENCE OF TEMPERATURE-HUMIDITY ON THE DEVELOPMENT OF TETRANYCHUS KANZAWAI

The duration of development, hatch rate, survival and fecundity of Tetranychus kanzawai were investigated by keeping the mites individually in the Constant temhumidity cabinets of 15℃ and 80% RH, 20℃ and 75% RH, 25℃ and 70%, 30℃ and 65% RH, and 35℃ and 60% RH respectively. The results showed that under 35℃ and 60% RH the mites exhibited the shortest generation (6.23±0.44) days. The average number of eggs laid per day by an adult was 7.18-t-1.56 with the highest number of 13.95± 3.72, and the oviposition period was (9.65±1.53) days, being the shortest. Under this condition, the hatch rate of eggs and the survival rate of young mites were 72.4% and 84. 5% respectively. While under the condition of 15℃ and 80% RH the mites had the longest generation (27.49±2.33) days, the mean number of eggs laid per day was 2.04±0.55, with the highest of 5±1.21, and the longest oviposition period was (28.4±4.06) days. The hatch rate of eggs and the survival rate of young mites were 85.6% and 97.0% respectively. It is manifested that the development of mites isinfluenced by both temperature and humidity. The mites developed faster under 35℃ but slower at 15℃, the optimal temperature for their development is considered to be within 25-30℃.