nymphal development and feeding preference of podisus maculiventris (heteroptera: pentatomidae) on eggs of ephestia kuehniella (lepidoptera: pyralidae) parasitised or not by trichogramma brassicae (hymenoptera: trichogrammatidae) desenvolvimento ninfal e preferência alimentar de podisus maculiventris (heteroptera: pentatomidae) em ovos de ephestia kuehniella (lepidoptera: pyralidae) parasitados ou não por trichogramma brassicae (hymenoptera: trichogrammatidae)

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ID: 153305
2004
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Abstract
Predation by Podisus maculiventris nymphs, a predatory pentatomid, was evaluated with eggs of the flour moth Ephestia kuehniella (Pyralidae), parasitised or not by Trichogramma brassicae (pupae stage). Eggs of this pyralid were glued on rectangular cardboard and presented to nymphs of P. maculiventris as food. The pentatomid successfully reached adult stage when feeding on unparasitised eggs, indicating that flour moth eggs can be used as a factitious food for rearing this predator. Pentatomid nymphs that received only parasitised eggs died before reaching fourth instar. In choice tests, P. maculiventris showed a preference for preying on unparasitised eggs of E. kuehniella rather than those containing pupae of T. brassicae. These results show that it is possible to combine the use of P. maculiventris with releases of T. brassicae in control programs of lepidopteran pests.
Avaliou-se a predação de ninfas de Podisus maculiventris sobre ovos de Ephestia kuehniella parasitados (em fase de pupa) ou não por Trichogramma brassicae. Esses ovos foram colados em cartelas retangulares e oferecidos às ninfas de P. maculiventris como alimento. Esse Pentatomidae só atingiu a fase adulta quando se alimentou de ovos não parasitados desse Pyralidae, indicando que os mesmos podem ser usados como hospedeiro alternativo para criação desse predador. Ninfas de P. maculiventris que receberam ovos parasitados morreram antes do quarto estádio. Em teste de escolha, ninfas desse predador mostraram preferência por ovos não parasitados em vez de por aqueles parasitados que continham em seu interior uma pupa de T. brassicae. Esses resultados mostram que é possível associar o uso de P. maculiventris com liberações de T. brassicae em programas de controle de lepidópteros pragas,
Reference Key
oliveira2004braziliannymphal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;H. N. Oliveira;P. De Clercq;J. C. Zanuncio;D. Pratissoli;E. P. Pedruzzi
Journal international journal of economic and environment geology
Year 2004
DOI
10.1590/S1519-69842004000300009
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842004000300009
Keywords
predator feeding preferencesciencebiology (general)zoologybotany

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