昆虫学报2012，Vol.55Issue(5)：561-569,9.
温度对桃蛀螟生长发育和繁殖的影响
Effects of temperature on the development and reproduction of the yellow peach moth, Conogethes punctiferalis (Lepidoptera: Pyralidae)
摘要
Abstract
To illustrate the influences of temperature on development and reproduction of the yellow peach moth, Conogethes punctiferalis (Guenee) , the development and fecundity of C. punctiferalis were investigated at five temperatures (15, 19, 23, 27 and 311) , with chestnut served as food. The results showed that temperature had significant effects on the developmental duration, survival rate, pupal weight and reproduction of C. punctiferalis. The developmental duration of every stage of C. punctiferalis reduced with increasing temperatures from 15 to 27℃ , and there was a positive relationship between developmental rate and temperature. Further increase of temperature to 31℃, however, is unfavorable to its larval development. The larval developmental duration at 31℃ was 1.11 d longer than that at 27℃, while the developmental durations of egg, pupa and preoviposition stages kept shorter at high temperature (31℃ ) than those at low temperatures. In addition, the development of the 5th instar larva ceased at 15℃, indicating that a higher threshold temperature was needed for the development of mature larva than lower instar larva. The generation survival rate of the yellow peach moth at different temperatures decreased in the order of 23℃>27℃ > 19℃>31℃ , of which the survival rate was high (54.44% -63.56% ) at 23 -27℃ and low (4. 30% ) at 31℃, suggesting that excessively high or low temperature was unfavorable to its survival. The oviposition amount of C. punctiferalis was the largest (averagely 55.00 eggs laid by per female) at 23tl, followed by those at 19℃ and 27℃ (43. 30 and 39. 70 eggs laid by per female, respectively), and the least was 20.90 eggs per female at 31℃. Based on the direct optimal method, the developmental threshold temperatures for egg stage, larval stage, pupal stage, preoviposition stage and the whole generation were 10. 37, 10. 06, 14. 27, 7. 47 and 11. 85℃, respectively, and the corresponding effective accumulated temperatures were 70. 84, 287. 71, 118.42, 58. 33 and 509.06 degree-days, respectively. The results provide the basis for forecasting the occurrence of the yellow peach moth and are applicable in agricultural practices.关键词
桃蛀螟/发育历期/存活率/繁殖/发育起点温度/有效积温Key words
Conogethes punctiferalis/ developmental duration/ survival rate/ reproduction/ developmental threshold temperature/ effective accumulated temperature分类
生物科学引用本文复制引用
杜艳丽,郭洪梅,孙淑玲,张民照,张爱环,王金宝,秦岭..温度对桃蛀螟生长发育和繁殖的影响[J].昆虫学报,2012,55(5):561-569,9.基金项目
国家自然科学基金项目(NSFC31040074) （NSFC31040074）
北京市教育委员会科技发展计划项目(KZ201210020019) （KZ201210020019）
北京市属高等学校人才强教计划资助项目 （）
