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Registros recuperados: 9
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Factors affecting herbivory of Thrips palmi (Thysanoptera: Thripidae) and Aphis gossypii (Homoptera: Aphididae) on the eggplant (Solanum melongena) BABT
Leite,Germano Leão Demolin; Picanço,Marcelo; Zanuncio,José Cola; Ecole,Carvalho Carlos.
The objective of this study was to evaluate effects of total rainfall, mean temperature, natural enemies, chemical composition of leaves, levels of nitrogen and potassium on leaves and density of leaf trichomes on attack intensity of Thrips palmi Karny (Thysanoptera: Thripidae) and Aphis gossypii (Glover) (Homoptera: Aphididae) on plantations of the eggplant (Solanum melongena) in two regions of Minas Gerais, Brazil. Higher numbers of A. gossypii/leaf and T. palmi/leaf were observed in plantations of this eggplant in the Municipalities of Viçosa and Guidoval, respectively. Guidoval had a rainy and hotter weather than Viçosa. T. palmi was almost positivelly correlated with rainfall (r= 0.49, P= 0.0538) while A. gossypii seemed to be more affected by mean...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aphis gossypii; Natural enemies; Plant nutrition; Solanum melongena; Thrips palmi.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000400002
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Non-Parametric Statistical Methods and Data Transformations in Agricultural Pest Population Studies Chilean J. Agric. Res.
Cabrera Campos,Alcides; Guerra Bustillo,Caridad W; Herrera Villafranca,Magaly; Suris Campos,Moraima.
Analyzing data from agricultural pest populations regularly detects that they do not fulfill the theoretical requirements to implement classical ANOVA. Box-Cox transformations and nonparametric statistical methods are commonly used as alternatives to solve this problem. In this paper, we describe the results of applying these techniques to data from Thrips palmi Karny sampled in potato (Solanum tuberosum L.) plantations. The X² test was used for the goodness-of-fit of negative binomial distribution and as a test of independence to investigate the relationship between plant strata and insect stages. Seven data transformations were also applied to meet the requirements of classical ANOVA, which failed to eliminate the relationship between mean and variance....
Tipo: Journal article Palavras-chave: Kruskal-Wallis test; Negative binomial distribution; Box-Cox transformations; Thrips palmi; Solanum tuberosum.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300020
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Sampling plan for Thrips (Thysanoptera: Thripidae) on cucumber Neotropical Entomology
Bacci,Leandro; Picanço,Marcelo C.; Moura,Marcelo F.; Semeão,Altair A.; Fernandes,Flávio L.; Morais,Elisangela G.F..
This work determines the best technique, sampling unit and the number of samples to compose a sampling plan for Frankliniella schultzei (Trybom) and Thrips palmi (Karny) (Thysanoptera: Thripidae) on cucumber. The efficacy of three sampling techniques: leaf beating on a plastic tray, direct counting of insects on the lower leaf surface, and whole leaf collection in bags were compared in nine commercial cucumber crops using three sampling units (a leaf from a branch located in the apical, median or basal third of the canopy). The number of samples was determined based on the relative variance and the economic precision for the best technique and sampling unit. The direct counting of insects on the apical third of the plant canopy was the best sampling...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cucumis sativus; Frankliniella schultzei; Thrips palmi; Decision-making; Negative binomial distribution.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000500014
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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
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Cage evaluation of augmentative biological control of Thrips palmi with Wollastoniella rotunda in winter greenhouses OAK
Nakashima, Yoshitaka; Uefune, Masayoshi; Tagashira, Eiko; Maeda, Seiko; Shima, Katsuya; Nagai, Kazuya; Hirose, Yoshimi; Takagi, Masami.
Cage trials of an anthocorid predator, Wollastoniella rotunda Yasunaga et Miyamoto, as a biological control agent of Thrips palmi Karny were conducted in Fukuoka, Japan, under winter greenhouse production conditions. Females of W. rotunda were released on caged eggplants, and placed in two greenhouses on 27 October. The development, population growth, and effectiveness of W. rotunda were observed until early March. Results from the cage trials showed that W. rotunda successfully developed, reproduced, and suppressed T. palmi populations under the conditions found in winter greenhouses. During the experiment, one full generation and a second generation of adult predators occurred. The T. palmi population which was exposed to predators remained at a low...
Palavras-chave: Reproductive diapause; Photoperiod; Development; Winter; Wollastoniella rotunda; Orius; Biological control; Thrips palmi; Solanum melongena; Dicyphus tamaninii; Frankliniella occidentalis; Piocoris varius.
Ano: 2004 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/808
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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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LOS ÁCAROS DEPREDADORES: UNA ALTERNATIVA PARA EL MANEJO DE Thrips palmi KARNY (THYSANOPTERA: THRIPIDAE) Rev. Protección Veg.
Rodríguez,H; Ramos,Mayra; Surís,Moraima.
Con el propósito de determinar la importancia de los ácaros depredadores en la regulación de las poblaciones de Thrips palmi, se realizó un total de 95 muestreos, en 23 cultivos diferentes, en el período comprendido entre mayo/1997 y diciembre/2000, en las provincias La Habana y Ciudad de La Habana. En todos los casos se extrajeron 25 hojas, preferentemente que presentaran daños de trips o 10 flores, si eran plantas ornamentales. Se determinó la riqueza de especies de los ácaros depredadores. En el cultivo de la papa (Solanum tuberosum), se compararon dos campos localizados en los municipios de San José de las Lajas y Güira de Melena, a través de índices ecológicos. Se realizaron, además, otras observaciones cualitativas y cuantitativas a nivel de campo y...
Tipo: Journal article Palavras-chave: Thrips palmi; Phytoseiidae; Control biológico; Actividad.
Ano: 2007 URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522007000200004
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Presencia de Thrips palmi Karny (Thysanoptera: Thripidae) en arvenses asociadas al cultivo de la sandía para la región de Azuero, Panamá Rev. Protección Veg.
Barba,Anovel; Suris,Moraima.
La investigación tuvo como objetivo identificar especies de arvenses en el cultivo de la sandía, asociadas a Thrips palmi Karny, en la región de Azuero, Panamá. Esta especie se encontró asociada a las siguientes especies de arvenses: Baltimora recta L. (Asteraceae), Bidens pilosa L., Melampodium divaricatum (Rich.) DC, Amaranthus viridis L. (Amaranthaceae), Amaranthus spinosus L. y Lantana camara L. (Verbenaceae), así como a tres cultivares: Capsicum frutesnces L., Capsicum annuum L. y Solanum melongena L. encontrados en la vegetación ruderal de colindancia al cultivo de sandía.
Tipo: Journal article Palavras-chave: Arvenses; Thrips palmi; Vegetación ruderal.
Ano: 2015 URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522015000300002
Registros recuperados: 9
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