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Presence-Absence Density Estimation of Thrips palmi Karny on Field Eggplant OAK
高木, 正見; 広瀬, 義躬; 仲島, 義貴; 島, 克弥.
The mean density of Thrips palmi on field eggplants was estimated from the proportion of infested eggplant leaves using the equation of Kono and Sugino (1958). Population size was found to be estimated by m=(-2.94×1n(1-p))^<1.56> where m is the density per leaf and p is the proportion of infested leaves.
Palavras-chave: Frequency of occurrence; Presence-absence sampling; Thrips palmi.
Ano: 2000 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2582
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Selection of Alternative Prey for Rearing Orius tantillus (Motschulsky) OAK
永井, 一哉; 広瀬, 義躬; 高木, 正見; 仲島, 義貴; 平松, 高明.
Nymphs and adults of Orius tantillus (Motschulsky), a predator of Thrips palmi Karny, were reared on three different prey : (1) live adults and nymphs of Tyrophagus putrescentiae (Schrank), (2) frozen eggs of Ephestia kuehniella Zeller, and (3) live 2nd-in-star larvae of T.palmi. The survival rate and development time of the predator nymphs and the survivorship and egg production of the predator adults were compared among these three types of prey. Frozen eggs of E.kuehniella were found to be a suitable alternative prey for O.tantillus.
Palavras-chave: Orius tantillus; Thrips palmi; Natural enemy; Alternative prey; Mass rearing.
Ano: 1998 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2581
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ヒメジンガサハナカメムシの発育と繁殖におけるミナミキイロアザミウマとカンザワハダニの餌としての適合性 OAK
上船, 雅義; 仲島, 義貴; 田頭, 栄子; 永井, 一哉; 広瀬, 義躬; 高木, 正見; Uefune, Masayoshi; Nakashima, Yoshitaka; Tagashira, Eiko; Nagai, Kazuya; Hirose, Yoshimi; Takagi, Masami.
ヒメジンガサハナカメムシの発育と繁殖に対するミナミキイロアザミウマとカンザワハダニの餌の適合性を明らかにするため,それぞれの餌種を与えた場合の本種幼虫の生存率と発育期間,雌成虫の寿命と産卵数を比較した.ミナミキイロ1齢幼虫や2齢幼虫を与えた場合,本種1齢幼虫は発育できたが,ミナミキイロ雌成虫を与えた場合,ほとんど発育できなかった.一方,カンザワハダニは苦虫だけでなく雌成虫を餌として発育可能で,本種1齢幼虫の好適な餌であった.加齢にともない餌の違いが及ぼす影響は小さくなり,ヒメジンガサハナカメムシ5齢幼虫の生存率と発育期間,雌成虫の寿命と産卵数は,餌の種類の違いによる影響は受けなかった.従って,カンザワハダニもミナミキイロと同様にヒメジンガサの発育や繁殖に対して餌適合性が高いと考えられ,ヒメジンガサはこれら2種の害虫に対する天敵資材としての利用可能性があることが示唆された. Effects of the prey species Thrips palmi and Tetranychus kanzawai and their stages on the development and reproduction of the anthocorid predator, Wollastoniella rotunda, were investigated under laboratory conditions. When offered first or second instar larvae of T. palmi, first instar nymphs of W. rotunda developed into second instars; however, when offered adult T....
Palavras-chave: Wollastoniella rotunda; Thrips palmi; Tetranychus kanzawai; Prey suitability; Biological control.
Ano: 2008 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2585
Registros recuperados: 3
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