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应用生态学报 ›› 1999, Vol. 10 ›› Issue (3): 335-337.

• 研究论文 • 上一篇    下一篇

不同温湿度组合对甜菜夜蛾生长发育及繁殖力的影响

徐金汉, 关雄, 黄志鹏, 余朝勤   

  1. 福建农业大学植物保护系, 福州 350002
  • 收稿日期:1998-06-09 修回日期:1998-12-28 出版日期:1999-05-25 发布日期:1999-05-25
  • 通讯作者: 徐金汉,男,44岁,副教授,学士学位,主要从事农业昆虫与害虫防治教学和科研工作,目前已在各类刊物发表学术论文20多篇,合著1本.E-mail:gx@fjau.edu.cn E-mail:gx@fjau.edu.cn
  • 基金资助:

    国家“九五”科技攻关项目(96-C01-02-01)及福建省教委资助项目(K96020).

Effect of different combinations of temperature and humidity on the development and fecundity of Spodoptera exigua

Xu Jinhan, Guan Xiong, Huang Zhipeng, Yu Zhaoqin   

  1. Department of Plant Protection, Fujian Agricultural University, Fuzhou 350002
  • Received:1998-06-09 Revised:1998-12-28 Online:1999-05-25 Published:1999-05-25

摘要: 不同温湿组合对甜菜夜蛾各虫态生长发育和繁殖力有明显的影响,适宜该虫生长发育的温湿度为26℃与RH80%或RH94%两个组合。在这种条件下,其卵孵化率、1~5龄幼虫存活率、蛹羽化率、雌虫比率、产卵的雌虫比率和平均产卵量分别为82.63%~83.70%、81.90%~82.47%、88.00%~88.03%、90.40%~91.00%、93.36%~94.17%、95.97%~96.26%、92.77%~94.16%、0.42~0.43、0.98和605~606粒/雌,且明显高于其它温湿组合。在温湿度为32℃与RH94%条件下,该虫的内禀增长能力最大(0.225).

关键词: 甜菜夜蛾, 温度, 湿度, 繁殖力

Abstract: Different combinations of temperature and relative humidity(RH) significantly affected the development and the fecundity of beet armyworm (Spodoptera exigua). The combination of 26℃ and RH 80% or 94% was optimal for the development of beet armyworm. Under this combination, the hatchability of egg, the survival rate of 1~5 instar larvae, the rates of emergence, female, and female ovipositing, and the mean quantity of oviposition were 82.63~83.70%, 81.90 ~82.47%,88.00~88.03%, 90.40~91.00%, 93.36~94.17%, 95.97~96.26%, 92.77~94.16%, 0.42 ~0.43, 0.98 and 605~606 eggs/female respectively, which were all significantly higher than those of other combinations. Under combination of 32℃ and RH94%, the population's innate capacity of increase was the highest (0.225).

Key words: Spodoptera exigua, Temperature, Humidity, Fecundity