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Development, Reproduction, and Life Table Parameters of the Foxglove Aphid, Aulacorthum solani Kaltenbach (Hemiptera: Aphididae), on Soybean at Constant Temperatures

1
Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Wanju-Gun, Jeollabuk-do 55365, Korea
2
Crop Cultivation and Environment Research Division, National Institute of Crop Science, Rural Development Administration, Suwon-si, Gyeonggi-do 16429, Korea
3
Research Institute of Climate Change and Agriculture, National Institute of Horticultural & Herbal Science, Rural Development Administration, Jeju-si, Jeju-do 63240, Korea
4
Department of Plant Medicals, Andong National University, Andong-si, Gyeongsangbuk-do 36729, Korea
5
College of Biotechnology & Bioengineering, Dankook University, Cheonan-si, Chungcheongnam-do 31116, Korea
*
Author to whom correspondence should be addressed.
Insects 2020, 11(5), 296; https://doi.org/10.3390/insects11050296
Received: 4 April 2020 / Revised: 4 May 2020 / Accepted: 8 May 2020 / Published: 11 May 2020
We investigated several characteristics of the development and reproduction of the aphid Aulacorthum solani raised on soybean (Glycine max) at 10 constant temperatures between 2.5 and 30 °C, and described the relationship between temperature and several critical biological characteristics using mathematical models. We found that A. solani could survive and reproduce on soybean at temperatures ranging from 5 to 27.5 °C. High fecundity was observed at temperatures from 12.5 to 20 °C. The lower developmental threshold and thermal constant for this species’ nymphal stages were estimated to be 5.02 °C and 131.2 degree-days, respectively, using a linear model. The upper developmental threshold was estimated to be 33.9 °C using the Lactin-2 model. The optimum temperature for nymphal development was estimated to be 26.9 °C. The maximum total fecundity was estimated as ca. 76.9 nymphs per adult at 18.1 °C. The daily fecundity sharply increased at earlier adult ages, and slowly decreased thereafter until final parthenogenesis occurred, over a range of temperatures from 12.5 to 25 °C. The maximum daily fecundity was estimated to be ca. 6.1 nymphs per adult per day for a 5.2 day old of adult at 21.3 °C using an age- and temperature-dependent model of adult fecundity. In terms of life table statistics, the intrinsic rates of increase and the finite rate of increase were both highest at 25 °C, while the net reproductive rate was highest at 20 °C. View Full-Text
Keywords: Glycine max; Aulacorthum solani; temperature; development; reproduction; life table Glycine max; Aulacorthum solani; temperature; development; reproduction; life table
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Seo, B.Y.; Kim, E.Y.; Ahn, J.J.; Kim, Y.; Kang, S.; Jung, J.K. Development, Reproduction, and Life Table Parameters of the Foxglove Aphid, Aulacorthum solani Kaltenbach (Hemiptera: Aphididae), on Soybean at Constant Temperatures. Insects 2020, 11, 296.

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