• Title/Summary/Keyword: '무당

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Temperature-dependent Longevity and Fecundity of Propylea japonica Thunberg (Coleoptera: Coccinellidae) and Its Predation Amount on Two Aphid Species (꼬마남생이무당벌레(Propylea japonica Thunberg)의 온도별 성충 수명, 산란수 및 두 종 진딧물에 대한 포식량)

  • Park, Bueyong;Jeong, In-Hong;Kim, Gil-Hah;Jeon, Sung-Wook;Lee, Sang-Ku
    • Korean journal of applied entomology
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    • v.58 no.1
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    • pp.77-83
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    • 2019
  • This study was conducted to investigate the developmental characteristics of Propylea japonica Thunberg (Coleoptera: Coccinellidae) and its consumption of Myzus persicae nymphs at 3 constant temperatures (20.0, 25.0 and $30.0^{\circ}C$; $60{\pm}5%$ relative humidity; 14 h light : 10 h dark). The longevity of adult female P. japonica under 20, 25, and $30^{\circ}C$ was 134.0, 101.0 and 55.2 days, respectively. The total fecundity was 508.6, 875.6, and 383.4 eggs during its life span, respectively. The longevity of adult male P. japonica under 20, 25, and $30^{\circ}C$ was 128.8, 97.8, and 46.5 days, respectively. Average daily consumption of adult M. persicae by 1st, 2nd, 3rd, and 4th instar P. japonica at $25^{\circ}C$ was 2.2, 7.3, 14.5, and 29.1, respectively. The average daily number of M. persicae consumed by male and female P. japonica over their lifetimes was 35.0 and 42.9, respectively. Average daily consumption of adult Aphis gossypii by 1st-4th instar P. japonica at $25^{\circ}C$ was 2.2, 7.5, 13.9, and 29.5, respectively. The average daily number of A. gossypii consumed by male and female P. japonica over their lifetimes was 37.0 and 40.8, respectively.