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Longevity and Life Table of the Foxglove Aphid (Aulacorthum solani K.) Adults on Lettuce (Lactuca sativa L.)

상추를 먹이로 공급할 때 싸리수염진딧물 성충의 수명과 생명표

  • Lee, Sang-Guei (Applied entomology Division, National Institute of Agricultural Science and Technology, RDA) ;
  • Kim, Hyeong-Hwan (Horticultural Environment Division, National Horticultural Research Institute, RDA) ;
  • Kim, Tae-Heung (Faculty of Biological Resources Science, College of Agriculture and Life Sciences, Institute for Biodiversity Reaserch, Chonbuk National University) ;
  • Park, Gil-Jun (Faculty of Biological Resources Science, College of Agriculture and Life Sciences, Institute for Biodiversity Reaserch, Chonbuk National University) ;
  • Kim, Kwang-Ho (Applied entomology Division, National Institute of Agricultural Science and Technology, RDA) ;
  • Kim, Ji-Soo (Muju Agricultural Technology Center)
  • 이상계 (농업과학기술원 농업해충과) ;
  • 김형환 (원예연구소 원예환경과) ;
  • 김태흥 (전북대학교 농업생명과학대학 생물자원과학부) ;
  • 박길준 (전북대학교 농업생명과학대학 생물자원과학부) ;
  • 김광호 (농업과학기술원 농업해충과) ;
  • 김지수 (무주군 농업기술센터 기술지원과)
  • Published : 2008.12.30

Abstract

Adult longevity and fecundity of the foxglove aphid, Aulacorthum solani Kaltenbach, were studied at $12.5{\sim}25^{\circ}C$ with $60{\sim}70%$ RH under 16L:8D and the results were put together to build a life table. The longevity of foxglove gradually increased with decreasing temperature below $25^{\circ}C$. Also total fecundity increased with decreasing temperature and highest fecundity was 74.1 nymphs per female at $15^{\circ}C$. However, daily fecundity increased with increasing temperatures up to $20^{\circ}C$ showing 2.9 nymphs per day and thereafter decreased. Net reproduction rate ($R_0$) was highest of 58.7 at $15^{\circ}C$. The intrinsic rate of increase per day ($r_m$) and the finite rate of increase per day (${\lambda}$) were highest of 0.27 and 1.32, respectively and the doubling time (Dt) was shortest of 2.52. the mean generation time (T) was 10.99 at $22.5^{\circ}C$.

싸리수염진딧물(Aulacorthum solani Kaltenbach)의 성충 수명과 산자수를 $12.5{\sim}25^{\circ}C$, 상대습도 $60{\sim}70%$, 광주기 16L:8D 조건에서 조사하여 생명표를 작성하였다. 싸리수염진딧물 성충은 $12.5{\sim}25^{\circ}C$에서의 수명이 $34.3{\sim}10.5$일로 온도의 상승에 따라 성충기간이 짧아졌다. 산자수는 $15^{\circ}C$에서 74.1마리로 최고치를 보였으며, $15{\sim}25^{\circ}C$에서는 온도가 상승함에 따라 산자수가 감소하였으나, $12.5^{\circ}C$에서는 47.0마리로 온도가 낮아짐에 따라 산자수가 적어지는 경향을 보였다. 또한 싸리수염진딧물 성충의 일일 산자수는 $20^{\circ}C$에서 2.9마리였고, $12.5^{\circ}C$에서 1.4마리와 $30^{\circ}C$에서 1.3마리로 온도가 높거나 낮아지면 일일산자수가 적어졌다. 싸리수염진딧물 약충 발육시 사망률과 성충 수명, 산자수를 이용하여 생명표를 작성하였는데 싸리수염진딧물은 순증가율(Ro)이 $15^{\circ}C$에서 58.7, 내적자연증가율($r_m$)은 $20^{\circ}C$에서 0.27, 기간증가율(${\lambda}$)은 $20^{\circ}C$에서 1.32이었으며, 배수기간(Dt)은 $20^{\circ}C$에서 2.52, 세대기간(T)은 $22.5^{\circ}C$에서 10.99로 가장 짧았다.

Keywords

References

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