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Registros recuperados: 6
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Does the presence of weeds affect Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) infestation on tomato plants in a semi-arid agro-ecosystem? Neotropical Entomology
Bezerra,Mary-Ann S.; Oliveira,Maria R.V. de; Vasconcelos,Simão D..
Integrated Bemisia tabaci (Gennadius) management requires quantitative knowledge on the mechanisms of persistence of pest populations in non-commercial host plants. We investigated B. tabaci oviposition preference among tomato and four weed species, and the insect population fluctuation under field conditions in the semi-arid region. At weekly intervals, we determined the level (number of eggs and nymphs per leaf) and the density of infestation (number of eggs and nymphs per leaf area) in all species. We observed an oviposition preference gradient among the species, with different degrees of attractiveness; Acanthospermum hispidum was the most infested species whereas Amaranthus deflexus was the least infested one. We also detected a significantly higher...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Whitefly; Weeds; Host preference; Caatinga.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000600015
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Notes on the genus Amphiprion Bloch & Schneider, 1801 (Teleostei: Pomacentridae) and its host sea anemones in the Seychelles Naturalis
Hartog, J.C. den.
The genus Amphiprion Bloch & Schneider, 1801, is represented in the Seychelles by two species, A. akallopisos Bleeker, 1853, and the endemic A. fuscocaudatus Allen, 1972. Throughout its distributional range Amphiprion akallopisos has exclusively been recorded to associate with the clownfish anemones Heteractis magnifica (Quoy & Gaimard, 1833) and Stichodactyla mertensii Brandt, 1835. During the Netherlands Indian Ocean Programme (NIOP) Seychelles Expedition 19921993 this was confirmed for the Seychelles, although the species was predominantly found with H. magnifica, the most common host anemone in the islands. So far, Amphiprion fuscocaudatus had exclusively been reported as a symbiont of Stichodactyla mertensii. During the NIOP Seychelles...
Tipo: Article / Letter to the editor Palavras-chave: Seychelles; Indo-West Pacific; Amphiprion; Clownfish anemones; Clownfish/host associations; Host preference; Competition; New records; 42.81.
Ano: 1997 URL: http://www.repository.naturalis.nl/record/319315
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Response of the egg parasitoids Trissolcus basalis and Telenomus podisi to compounds from defensive. Repositório Alice
LAUMANN, R. A.; AQUINO, M. F. S.; MORAES, M. C. B.; PAREJA, M.; BORGES, M..
bitstream/item/156269/1/art3A10.10072Fs10886-008-9578-0.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Defensive compounds; Host-parasitoid interactions; Host searching; Host preference; Sceolionidae; Hemíptera; Hymenoptera; Pentatomidae; Kairomones.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/427662
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Egg parasitoid wasps as natural enemies of the neotropical stink bug Dichelops melacanthus. Repositório Alice
LAUMANN, R. A.; MORAES, M. C. B.; SILVA, J. P. da; VIEIRA, A. M. C.; SILVEIRA, S. da; BORGES, M..
Abstract ? The objective of this work was to determine the potential of five species of Scelionidae wasps ? Telenomus podisi, Trissolcus basalis, Trissolcus urichi, Trissolcus teretis and Trissolcus brochymenae ? as natural enemies of the neotropical stink bug Dichelops melacanthus, and to determine if the presence of eggs of other stink bug species influences the parasitism and development of the parasitoids. Two kinds of experiments were done in laboratory: without choice of hosts (eggs of D. melacanthus) and with choice (eggs of D. melacanthus and of Euschistus heros). Biological parameters, including proportion of parasitism, immature survivorship, progeny sex ratio, immature stage development period, and host preference were recorded. All the...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Corn pests; Telenomus; Trissolcus; Biological control; Host preference; Host suitability.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/859110
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Egg parasitoid wasps as natural enemies of the neotropical stink bug Dichelops melacanthus PAB
Laumann,Raúl Alberto; Moraes,Maria Carolina Blassioli; Silva,Joseane Padilha da; Vieira,Afrânio Márcio Corrêa; Silveira,Samantha da; Borges,Miguel.
The objective of this work was to determine the potential of five species of Scelionidae wasps - Telenomus podisi, Trissolcus basalis, Trissolcus urichi, Trissolcus teretis and Trissolcus brochymenae - as natural enemies of the neotropical stink bug Dichelops melacanthus, and to determine if the presence of eggs of other stink bug species influences the parasitism and development of the parasitoids. Two kinds of experiments were done in laboratory: without choice of hosts (eggs of D. melacanthus) and with choice (eggs of D. melacanthus and of Euschistus heros). Biological parameters, including proportion of parasitism, immature survivorship, progeny sex ratio, immature stage development period, and host preference were recorded. All the evaluated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Telenomus; Trissolcus; Biological control; Corn pests; Host preference; Host suitability.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000500002
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Alternation of host plants as a survival mechanism of leafhoppers Dilobopterus costalimai and Oncometopia facialis (Hemiptera: Cicadellidae), vectors of the Citrus Variegated Chlorosis (CVC) Scientia Agricola
Milanez,José Maria; Parra,José Roberto Postali; Magri,Denise Cristina.
Dilobopterus costalimai (Young) and Oncometopia facialis (Signoret) are two of the most important species of citrus leafhoppers, vectors of bacterium Xylella fastidiosa which causes the Citrus Variegated Chlorosis (CVC) disease. To develop a rearing technique for these species under laboratory conditions, the egg laying preference and nymph development were studied in different breeding systems: Rangpur lime (Citrus limonia) and "falso boldo" (Vernonia condensata) as host plants. Trials were set up in a randomized block design with three treatments (n=8). Females of D. costalimai had particular preference for ovipositing on Rangpur lime leaves while O. facialis females placed a higher number of eggs on "falso boldo", but it did not differ statistically...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biology; Nutritional ecology; Host preference.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162001000400008
Registros recuperados: 6
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