• Title/Summary/Keyword: Saissetia coffeae

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Predatory Capability of Chilocorus kuwanae (Silvestri) (Coleoptera: Coccinellidae) for Saissetia coffeae (Walker) (Hemiptera: Coccidae) (철모깍지벌레(Saissetia coffeae)에 대한 애홍점박이무당벌레(Chilocorus kuwanae)의 포식능력)

  • Jin, Hye Young;Ahn, Tai Hyeon;Lee, Bong Woo;Jun, Hye Jeong;Lee, Jun Seok;Park, Jong Kyun;Ham, Eun Hye
    • Korean journal of applied entomology
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    • v.54 no.4
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    • pp.437-442
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    • 2015
  • This study, examined Chilocorus kuwanae for biological control of Saissetia coffeae. We measured basic developmental characteristics of C. kuwanae and its capability to prey on the second-instar larvae of S. coffeae by indoor breeding under the following conditions: $25^{\circ}C{\pm}2^{\circ}C$, humidity $70%{\pm}5%$, and day length 16L : 8D. The average daily consumption of the second-instar larvae of S. coffeae by C. kuwanae adults was approximately 77.5 larvae/day, which was significantly 2.8 and 2.9 times higher than consumption by Chrysoperla carnea and Cryptolaemus montrouzieri, respectively. During the nymphal period, C. kuwanae consumed a total of 659.0 second-instar larvae of S. coffeae. The interaction between C. kuwanae and the second-instar larvae of S. coffeae varied according to their densities, with the increase in C. kuwanae consumption rate noted to decelerate and gradually level off at the maximum, rsembling Holling's Type II functional response. Duration of egg to adult development varied from 21.1 days to nearly 27.9 days at temperatures of $25^{\circ}C{\pm}2^{\circ}C$. Hatchability, pupation rate, and adult emergence were greater than 72.3%, 77.8% and 83.3%, respectively.