Suitable Food for the Mass Rearing of <I>Wollastoniella rotunda</I> (Heteroptera: Anthocoridae), a Predator of <I>Thrips palmi</I> (Thysanoptera: Thripidae)
スポンサーリンク
概要
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<I>Wollastoniella rotunda</I> Yasunaga et Miyamoto is an effective predator of <I>Thrips palmi</I> Karny and a potential biological control agent for this pest of Japanese greenhouse vegetables. To determine alternative sources of prey for the mass rearing of <I>W. rotunda</I> used for <I>T. palmi</I> augmentative biocontrol, we examined the life history parameters of this predator as reared on two different prey species: <I>Tyrophagus putrescentiae</I> (Schrank) and <I>Ephestia kuehniella</I> Zeller eggs. When the predator nymphs were reared on <I>T. putrescentiae</I> and <I>E. kuehniella</I> at 25°C, their developmental times were 21.0 and 16.7 days, respectively, and their survival rates on <I>T. putrescentiae</I> and <I>E. kuehniella</I> at 25°C were 43% and 91%, respectively. The longevity of the predator females was 13.1 days on <I>T. putrescentiae</I> and 19.2 days on <I>E. kuehniella,</I> and their total fecundity was 15.0 eggs on <I>T. putrescentiae</I> and 56.5 eggs on <I>E. kuehniella.</I> The intrinsic rate of natural increase per day of <I>W. rotunda</I> on <I>E. kuehniella</I> (<I>r<SUB>m</I></SUB> = 0.087) was greater than that on <I>T. putrescentiae</I> (<I>r<SUB>m</I></SUB> = 0.031). We thus concluded that <I>E. kuehniella</I> is more suitable than <I>T. putrescentiae</I> as food for the mass rearing of <I>W. rotunda.</I>
著者
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Takagi Masami
Institute Of Biological Control Faculty Of Agriculture Graduate School Kyushu University
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Shima Katsuya
Institute of Biological Control, Faculty of Agriculture, Kyushu University
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Shima Katsuya
Institute Of Biological Control Faculty Of Agriculture Kyushu University
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Nakashima Yoshitaka
Institute Of Biological Control Faculty Of Agriculture Kyushu University
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Hirose Yoshimi
Institute Of Biological Control Faculty Of Agriculture Kyushu University
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NAGAI Kazuya
Research Institute for Agriculture, Okayama Prefectural Technology Center for Agriculture, Forestry and Fisheries
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