Effect of temperature on the life history of Eretmocerus sp. nr. furuhashii, a parasitoid of Bemisia tabaci
Effect of temperature on the life history of Eretmocerus sp. nr. furuhashii, a parasitoid of Bemisia tabaci
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DOI：
10.1007/s10526-006-9064-y
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发表时间：
2007-12
期刊：
影响因子：
2.5
通讯作者：
B. Qiu;P. Barro;S. Ren;Cai-xia Xu
中科院分区：
文献类型：
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作者：
B. Qiu;P. Barro;S. Ren;Cai-xia Xu
尖尾藻属nr.furuhashii（Hyactera：在室内研究了恒温对烟粉虱E. sp. nr. furuhashii生活史的影响。发育历期从20 ℃的39.2天到32 ℃的12.40天不等。完成发育共需263.4度日，发育起点温度较低，为11.1 ℃。在产出的鸡蛋中，59.3%在20°C下完成发育，在26°C下完成率增加到71.5%。成年雌性的寿命在20°C下为10.8天，在32°C下为5.2天，而平均每日每只雌性繁殖的后代在29°C下最高，为5.9只后代。成虫产卵量在26、29和32°C下羽化后3天达到高峰，在20°C和23°C下羽化后4天达到高峰。每只雌性产生的后代总数从32°C下的25.7只到20°C下的41.1只不等。性别比有女性偏向，范围从17°C时的0.72到35°C时的0.51。在29°C下的固有增加率为0.1727，随后在32°C下为0.1606。结果表明，在26°C ~ 32°C的温度范围内，E. sp. nr. furuhashii的生物学潜力最大。
Eretmocerussp. nr.furuhashii(Hymenoptera: Aphelinidae) is an indigenous parasitoid ofBemisia tabaci(Gennadius)(Hemiptera: Aleyrodidae) from southern China; the effects of constant temperatures on the life history ofE.sp. nr.furuhashiiwere examined in the laboratory. The developmental period ranged from 39.2 days at 20°C to 12.40 days at 32°C. A total of 263.4 degree-days were required to complete development with a lower developmental threshold temperature of 11.1°C. Of the eggs produced, 59.3% completed development at 20°C with completion increasing to 71.5% at 26°C. Adult female longevity was 10.8 days at 20°C and 5.2 days at 32°C while the mean daily offspring reproduced per female was highest at 29°C with 5.9 offspring. Adult oviposition peaked three days after emergence at 26, 29 and 32°C, and four days post-emergence at 20°C and 23°C. The total numbers of offspring produced per female ranged from 25.7 individuals at 32°C to 41.1 individuals at 20°C. The sex ratio had a female bias and ranged from 0.72 at 17°C to 0.51 at 35°C. The intrinsic rate of increase was 0.1727 at 29°C followed with 0.1606 at 32°C. Results indicated thatE.sp. nr.furuhashiireaches its maximum biological potential at temperatures ranging from 26°C to 32°C.