温度和食物对稻虱缨小蜂发育、存活和繁殖的影响
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EFFECTS OF TEMPERATURE AND FOOD ON THE DEVELOPMENT, SURVIVAL AND REPRODUCTION OF ANAGRUS NILAPARVATAE PANG AND WANG (HYMENOPTERA: MYMARIDAE)
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    摘要:

    在白背飞虱(Sogatella furcifera(Hovàrth))卵内,稻虱缨小蜂(Anagrus nilparvatae Pang et Wang)的发育起点温度为10.6℃,有效积温为162.3日度,随着温度上升,发育加快;寿命(y_1,D_(10.4)~0C)、产卵量(y_2,粒/♀)、产出卵率则在适宜温度范围(23—26℃)内最大,高低温区内均呈下降趋势,其方程分别为:y_1=exp(-0.04187+0.3612x-7.4654×10~(-3)x~2),y_2=exp(-1.9539+0.4563x-0.01001x~2),式中x为温度。温度对未产出卵量影响不显著;对子代雌性比的影响也不显著,其平均值为0.7631。温度主要通过对产卵量和产卵速率来影响繁殖力,理论上27.3℃时周限增长率λ最大,达1.2374倍/天。成虫期供蜜加水时的产卵量、产出卵率和寿命显著比仅供水时的高或长。此研究为预测害虫种群发展,充分利用天敌资源,达到综合管理害虫提供了科学依据。

    Abstract:

    The development rate, survival and age-specific fecundity of Anagrus nila-parvatae Pang and Wang, a mymarid egg parasitoid of the rice planthoppers, parasitized within eggs of white-backed planthopper(Sogatella furcifera Hor-vath), were measured under the conditions of various constant temperaurcs from 14℃ to 33℃ and different food. The developmental threshold and thermal constant of this mymarJd were estimated to be 10.6℃ and 162.3 day -degree, respectively. The development rate of the wasp increases as te...

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祝增荣,程家安,陈琇.温度和食物对稻虱缨小蜂发育、存活和繁殖的影响.生态学报,1991,11(1):66~72

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