Aphids
Mostrando 37-48 de 136 artigos, teses e dissertações.
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37. Evaluación de barreras vegetales en el manejo integrado de la mancha anular del papayo (PRSV-P) en Michoacán, México
The effect of plant barriers as a component of an integrated management program (IM) was validated and adapted in 1999, in Michoacan, Mexico, to control papaya ringspot, caused by papaya ringspot potyvirus type-P (PRSV-P). A split-plot design was established with two experimental factors: plant barriers and components of IM: IM without oil sprinkling (IM-O),
Summa Phytopathologica. Publicado em: 2008-12
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38. Afidos en plantas ornamentales de Córdoba, Argentina (Hemiptera: Aphididae)
The quality of the ornamental plants is closely related to their phytosanitary state, that, in turn, is affected by the activity of some insect groups. Aphids are common pests of nearly all kinds of plants, ornamental plants among them. The fauna associated with aphids that colonize ornamental plants includes honey ants (Hymenoptera: Formicidae) that establi
Neotropical Entomology. Publicado em: 2008-02
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39. BIOLOGY AND FUNCTIONAL RESPONSE OF Ceraeochrysa cubana (HAGEN) (NEUROPTERA: CHRYSOPIDAE) FED ON Aphis gossypii GLOVER (HEMIPTERA: APHIDIDAE) ON CUCUMBER IN GREENHOUSE / BIOLOGIA E RESPOSTA FUNCIONAL DE Ceraeochrysa cubana (HAGEN) (NEUROPTERA: CHRYSOPIDAE) ALIMENTADA COM Aphys gossypii GLOVER (HEMIPTERA: APHIDIDAE)EM PLANTAS DE PEPINO EM CULTIVO PROTEGIDO.
This work aimed to evaluate some biologicals aspects of larval and adult stages of Ceraeochrysa cubana the predatory capacity and functional response of larvae fed with Aphis gossypii reared on cucumber leafs cultivar âCaipiraâ in greenhouse For essays of biology we released in each plant previously infested with A gossypii a larvae of first instar C cuban
Publicado em: 2008
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40. Biology and thermal requirements of Aulacorthum solani (Kaltenbach), Macrosiphum euphorbiae (Thomas), Uroleucon ambrosiae (Thomas) (Hem.: Aphididae) and Praon volucre (Haliday) (Hym.: Braconidae). / Biologia e exigÃncias tÃrmicas de Aulacorthum solani (Kaltenbach), Macrosiphum euphorbiae (Thomas), Uroleucon ambrosiae (Thomas) (Hem.: Aphididae) e Praon volucre (Haliday) (Hym.: Braconidae)
A temperatura à um dos fatores abiÃticos de maior influencia sobre os insetos. Temperaturas inferiores ou superiores à faixa Ãtima para o desenvolvimento e reproduÃÃo, ocasionam efeitos deletÃrios à biologia de pulgÃes e de seus parasitÃides. O objetivo deste trabalho foi avaliar a influÃncia da temperatura na biologia das espÃcies de pulgÃes Au
Publicado em: 2008
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41. Coccinellidae (Coleoptera) usando plantas aromáticas como sítio de sobrevivência e reprodução em sistema agroecológico, e aspectos biológicos em condições de Laboratório / Coccinellidae (Coleoptera) using aromatic plants as survival and reproduction site in agroecological system, and biological aspects under laboratory conditions.
Among the natural enemies of agriculture pests, the Coccinellidae predators are detached. Some coccinellids only complete their development and produce viable eggs and progenies when they consume their preferred prey. However, when this prey is scarce or in presence of a prey of low quality, certain coccinellids feed on alternative food resources, such as ex
Publicado em: 2008
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42. Efeito de estirpes fracas do PRSV-W e do ZYMV sobre a produção de quatro variedades de Cucurbita pepo / Effect of protective mild strains of PRSV-W and ZYMV on the yield of four varieties of Cucurbita pepo
Zucchini squash (Cucurbita pepo L.) is widely cultivated in Brazil, especially in the State of São Paulo, which is the major producer. Nine viruses capable to infect this species have already been described in Brazil. The most frequent and responsible for significant yield losses are the potyviruses Papaya ringspot virus - type W (PRSV-W) and Zucchini yello
Publicado em: 2007
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43. Predatory capacity and functional response of Ceraeochrysa cubana (Hagen, 1861) (Neuroptera: Chrysopidae) fed on Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) in cucumber / Capacidade predatÃria e resposta funcional de Ceraeochrysa cubana (Hagen, 1861)(Neuroptera: Chrysopidae) alimentada com Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) em plantas de pepino
Evaluating some biological aspects, the predatory capacity at three temperatures and the functional responses of larvae of Ceraeochrysa cubana (Hagen) fed third and fourth instar nymphs of Aphis gossypii Glover was sought. The experiments were conducted in the Laboratory of the EcoCentro/CTSM-EPAMIG, Lavras, MG, in climatic chambers at 22; 25 and 28Â1oC, 70
Publicado em: 2006
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44. Ocorrência de espécies de afídeos em citros (Citrus sinensis (L.) Osbeck), seus predadores e parasitórides.
The populational floatation of the aphids Aphis spiraecola (Patch, 1914), Aphis gossypii (Glover, 1887), Toxoptera aurantii (Boyer de Foscolombe, 1841) and Toxoptera citricidus (Kirkald, 1907) was studied and related to climate variations from May of 2004 to April of 2005, through the use of Pearsonss Correlation Analysis. The sampling was carried out every
Publicado em: 2006
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45. Soluções homeopáticas em Brevicoryne brassicae e Ascia monuste orseis / Homoeopathic solutions in Brevicoryne brassicae and Ascia monuste orseis
This work had for objective to verify if there is winged individuals formation in colonies of aphids Brevicoryne brassicae (L.), and the occurrence of some adverse effect in Ascia monuste orseis, when exposed to the homoeopathic solutions. The insects were coming of the creation-stock. The preparation of the solutions and the dinamizations were accomplished
Publicado em: 2006
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46. InteraÃÃo trigo-silÃcio-inseticida na biologia e no comportamento de prova do pulgÃo-verde Schizaphis graminum (Rondani) (Hemiptera: Aphididae) monitorado pela tÃcnica Electrical Penetration Graphs (EPG) / Interactions wheatâsiliconâinsecticide in the biology and probing behavior of greenbug Schizaphis graminum (Rondani) (Hemiptera: Aphididae) monitoring âElectrical Penetration Graphsâ technique (EPG)
MÃtodos de controle que visam diminuir o impacto da utilizaÃÃo de inseticidas estÃo sendo cada vez mais pesquisados e adotados na agricultura moderna. Estudos com silÃcio tÃm demonstrado que a sua aplicaÃÃo pode aumentar o grau de resistÃncia das plantas ao ataque de insetos. Diante disso, este trabalho teve como objetivo avaliar o efeito da aplica�
Publicado em: 2006
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47. Desenvolvimento das plantas, ocorrência de insetos, produção e conservação de frutos de goiabeiras sob adubações orgânica e mineral / Plant development, insect incidence, fruit yield and conservation of guava fruits under organic and mineral fertilization
The influence of mineral fertilizers and organic compost on the development of guava trees, fruit yield, insect incidence and fruit post-harvest conservation was evaluated. Also, the effects of different doses of mineral fertilization (ammonium sulphate and potassium chloride) and organic compost was studied by supplying proportions of the recommended dose (
Publicado em: 2006
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48. Sistemas dinamicos e controladores fuzzy : um estudo da dispersão da Morte Subita dos Citros em São Paulo / Dynamic systems and fuzzy controllers : a study of the dispersion of the Citrus Sudden Death in São Paulo
Citrus Sudden Death is a relatively new disease that has affected and killed sweet oranges grafted on the Rangpur lime. This is a worrying characteristic because the Rangpur lime amounts to 85% of the citrus orchards in São Paulo and the south of "Triângulo Mineiro". It is believed that the disease is caused by a virus transmitted by citrus aphids (vectors
Publicado em: 2005