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Distribuição espacial do ácaro Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae) em cafeeiro (Coffea arabica L.) Anais da SEB
Reis,Paulo R.; Souza,Júlio C. de; Sousa,Elber de O.; Teodoro,Adenir V..
A distribuição espacial do ácaro Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae), vetor da mancha-anular em cafeeiro (Coffea arabica L.), foi estudada com o objetivo de conhecer os locais preferidos pelo ácaro, e assim visando seu controle. Contagens de ácaros em todos os estádios do desenvolvimento foram realizadas nas folhas, ramos e frutos nos terços inferior, médio e superior, da parte interna e externa das plantas. Constatou-se que B. phoenicis ocorreu em maior quantidade em folhas internas, ramos e frutos dos terços inferior e médio das plantas de café. Nas folhas, os ácaros localizavam-se predominantemente na página inferior, próximos às nervuras, principalmente a central. Nos frutos, ovos e ácaros foram encontrados preferencialmente na...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acari; Ácaro-plano; Vírus da mancha-anular; Citros.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000100022
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Effect of prey density on the functional and numerical responses of two species of predaceous mites (Acari: Phytoseiidae) Neotropical Entomology
Reis,Paulo R.; Sousa,Elber O.; Teodoro,Adenir V.; Pedro Neto,Marçal.
Phytoseiidae mites are the most important and studied natural enemies of pest mites. A question frequently raised is whether phytoseiid may reduce high densities of phytophagous mites. Studies of functional and numerical responses may help to answer this question. The aim of this work was to evaluate the potential predation success of Iphiseiodes zuluagai Denmark and Muma and Euseius alatus DeLeon (Acari: Phytoseiidae) on Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae), vector of the citrus leprosis and the coffee ringspot viruses. Bioassays were performed in the laboratory. Adult females of each predator were isolated in arenas made with citrus leaves (3-cm diameter). Immature stages of B. phoenicis were offered as prey, at the following...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Iphiseiodes zuluagai; Euseius alatus; Brevipalpus phoenicis; Citrus; Coffee plant.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000300013
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Life history of Amblyseius herbicolus (Chant) (Acari: Phytoseiidae) on coffee plants Neotropical Entomology
Reis,Paulo R.; Teodoro,Adenir V.; Pedro Neto,Marçal; Silva,Ester A. da.
The predaceous mite Amblyseius herbicolus (Chant) is the second most abundant phytoseiid on coffee plants (Coffea arabica L), after Euseius alatus DeLeon, in Lavras, MG, Brazil, associated to the vector of the coffee ring spot virus, Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae). Its life history was studied taking into account biological aspects, life table, predatory activity and functional and numerical responses in relation to the density of the prey. The adult female has longevity of 38 days when supplied with B. phoenicis. The intrinsic rate of population increase (r m) was 0.150 and the mean generation time (T) 25.3 days. The population doubles every 4.6 days. Thirty mites B. phoenicis /3-cm diameter coffee leaf arenas were separately...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biology; Phytoseiid; Functional response; Numerical response; Coffea arabic.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000200016
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Parasitizing behavior of Cervellus piranga Penteado-Dias (Hymenoptera, Braconidae, Braconinae) on papaya borer weevil Pseudopiazurus obesus Marshall (Coleoptera, Curculionidae) Rev. Bras. entomol.
Moreira,Marcos A. B.; Zarbin,Paulo H. G.; Penteado-Dias,Angélica M.; Teodoro,Adenir V..
Parasitizing behavior of Cervellus piranga Penteado-Dias (Hymenoptera, Braconidae, Braconinae) on papaya borer weevil Pseudopiazurus obesus Marshall (Coleoptera, Curculionidae). The papaya borer weevil Pseudopiazurus obesus is a pest associated with papaya crops in Brazil and Cervellus piranga is a naturally-occurring parasitoid which may contribute to regulate populations of this pest. We aimed at describing the parasitizing behavior of the parasitoid C. piranga on papaya borer weevil P. obesus larvae under field conditions. The sequence of events related to the parasitizing behavior of C. piranga is similar to other braconid species and includes the location and recognition of the attacked host plant followed by walks on the host plant and touching it...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Kairomones; Parasitoid; Papaya pest; Plant volatiles; Sinomones.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000400019
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Predatory activity of Phytoseiid mites on the developmental stages of coffee ringspot mite (Acari: Phytoseiidae: Tenuipalpidae) Anais da SEB
Reis,Paulo R.; Teodoro,Adenir V.; Pedro Neto,Marçal.
By means of bioassays performed in arenas of 3 cm in diameter, manufactured with coffee leaves floating on water, the phases of the coffee ringspot mite Brevipalpus phoenicis (Geijskes) were studies on the preference by several developmental stages of the predaceous mites Euseius alatus DeLeon and Iphiseiodes zuluagai Denmark & Muma. The experiment was conducted in laboratory at 25 ± 2ºC, 70 ± 10% RH and 14 h photophase. The preferred stage of coffee ringspot vector virus was the larva followed by nymph and egg. Adults were least preyed on. In general, the most aggressive phase of the predators was the adult female followed by the nymph; the larval phase was the least aggressive. The average predation of E. alatus and I. zuluagai for the different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rhabdovirus; Biological control; Flat-mite; Brevipalpus phoenicis; Euseius alatus; Iphiseiodes zuluaga.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300017
Registros recuperados: 5
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