Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Bionomics of the Green Peach Aphid(Myzus persicae $S\H{u}lzer$) Adults on Chinese cabbage(Brassica campestris)

복숭아혹진딧물(Myzus persicae $S\H{u}lzer$) 성충의 수명과 생명표

  • Kim, Ji-Soo (Organic Farming Technology Division, Crop Life Safety Department, National Institute of Agricultural Science and Technology, RDA) ;
  • Kim, Tae-Heung (Agricultural Biology Major, Division of Biological Resources Science, College of Agriculture and Life Sciences, Chonbuk National University) ;
  • Lee, Sang-Guei (Organic Farming Technology Division, Crop Life Safety Department, National Institute of Agricultural Science and Technology, RDA)
  • 김지수 (농촌진흥청 농업과학기술원 친환경농업과) ;
  • 김태흥 (전북대학교 농업생명과학대학 농생물학과) ;
  • 이상계 (농촌진흥청 농업과학기술원 친환경농업과)
  • Published : 2005.09.01
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Abstract

Adult development and fecundity of the green peach aphid, Myzus persicae $S\H{u}lzer$, were studied at $15{\sim}32.5^{\circ}C$ with $60{\sim}70%$ RH under 16L:8D and the results were put together to build a life table. The longevity shortened as temperatures rose at and below $25^{\circ}C$ whereas it remained relatively constant at $27.5^{\circ}C$. Total fecundity was not significantly different at all temperatures except at $30^{\circ}C$. Daily fecundity gradually increased from $15\;to\;22.5^{\circ}C$. It was 5.1 at $25^{\circ}C$ and as temperatures either went down or up, it decreased to 2.8 at both $15^{\circ}C\;and\;30^{\circ}C$. Fecundity model built from total fecundity at various temperatures suggests that $18.3^{\circ}C$ was the optimum temperature for the maximum progeny of 51. Net reproduction rate RO was highest of 36.5 at $27.5^{\circ}C$. The intrinsic rate of increase per day $r_m$ and the finite rate of increase per day $\lambda$ were highest of 0.4 and 1.6, respectively and the doubling time Dt was shortest of 1.6. Constructed life table suggests that the optimum temperature for adult development for the green peach aphid was $27.5^{\circ}C$ at which the mean generation time was 8.1.

복숭아혹진딧물(Myzus persicae $S\H{u}lzer$)의 성충 발육과 산자수를 $15-32.5^{\circ}C$, 상대습도 60-70%, 광주기 16L:8D 조건에서 조사하고 생명표를 작성하였다. 복숭아혹진딧물 성충은 $15-25^{\circ}C$까지 수명이 $13.1{\sim}8.4$일로 온도의 상승에 따라 성충기간이 짧아졌으며, 산자수는 $20^{\circ}C$에서 40.8마리로 최고치를 보였으나 $15-27.5^{\circ}C$까지 산자수 차이에 유의성이 인정되지 않았다. 다만 $30^{\circ}C$에서는 8.4마리로 고온에 영향을 받은 것으로 보인다. 또한 복숭아혹진딧물 성충의 일일 산자수는 $25^{\circ}C$에서 5.1마리였고, $15^{\circ}C$와 $30^{\circ}C$에서는 모두 2.8마리로 온도가 높거나 낮아지면서 일일산자수가 적어졌다. 온도별 총 산자수를 이용하여 작성한 산자 모형을 보면 $18.3^{\circ}C$에서 51.0마리로 최고값을 보인다. 또한 약충 발육시 사망률과 성충 수명, 산자수를 이용하여 생명표를 작성하였는데 복숭아혹진딧물은 Ro가 $27.5^{\circ}C$에서 36.5, $r_m$은 0.4, Dt는 1.6, 기간증가율은 1.5, 세대기간은 8.1로 $27.5^{\circ}C$가 복숭아혹진딧물 증가에 가장 적합한 온도로 나타났다.

Keywords

References

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