Interações entre Brontocoris tabidus, Podisus nigrispinus (Heteroptera: Pentatomidae), Thyrinteina arnobia (Lepidoptera: Geometridae) e Eucalyptus

• Ano de defesa: 2013
• Autor(a) principal: Guañabens, Rafael Eugênio Maia
• Orientador(a): Zanuncio, José Cola
• Banca de defesa: Pinto, Rosenilson , Sediyama, Carlos Sigueyuki , Fadini, Marcos Antonio Matiello
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Doutorado em Fitotecnia
• Departamento: Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de
• País: BR
• Palavras-chave em Português: Controle biológico; Pentatomidae; Predador; Reprodução
• Palavras-chave em Inglês: Biological control; Pentatomidae; Predator; Playback
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA
• Link de acesso: http://locus.ufv.br/handle/123456789/1207

Podisus nigrispinus (Dallas, 1851) and Brontocoris tabidus (Signoret, 1863) (Heteroptera: Pentatomidae) bugs are predators that have been used for pest control agroforestry, including Thyrinteina arnobia (Stoll, 1782) (Lepidoptera: Geometridae). The joint use of several species of natural enemies for controlling insects is growing. However is necessary to know the effect this interaction in reproductive biology, survival and nymphal development of species, beyond knowing how these species interact to locate their prey. The objectives were to study the location of prey Thyrinteina arnobia by P. nigrispinus and B. tabidus, the effect of the interaction between predators on nymphal development, the effect of increasing the density of P. nigrispinus on the reproductive biology of B. tabidus and vice versa, the interaction effect in survival, longevity, fecundity and life table of P. nigrispinus and B. tabaidus. For the location of the prey P. nigrispinus preferred plants infested with T. arnobia and B. tabidus. This only predator preferred plants infested with T. arnobia. The interaction between nymphs of B. tabidus and P. nigrispinus increased nymphal period and decreased the weight of nymphs. The number of eggs, of eggs per posture, of nymphs and longevity of P. nigrispinus reduced by increasing the density female B. tabidus. The number of postures of P. nigrispinus increased with the density of B. tabidus and, even at low densities, this predator reduced the reproductive characteristics of B. tabidus. The presence of heterospecific predator affect the reproductive traits of predators. However, B. tabidus was more sensitive to the presence of P. nigrispinus this, and the incubation of eggs and the number of nymphs per posture the only reproductive parameters not influenced. Life table parameters are influenced by the presence of heterospecific predator with the highest values for predators created by themselves. These predators interact to locate prey, with greatest benefit to P. nigrispinus. The interaction between species affect reproductive parameters, survival and nymphal development. But interaction is not able to eliminate any kind, because the nymphs reached phase adult and females only reduced oviposition. These species may be used together to control agroforestry first releasing B. tabidus and then P. nigrispinus.