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BIOLOGICAL ASPECTS OF Cycloneda sanguinea (L) (COLEOPTERA, COCCINELLIDAE) ASPECTOS BIOLÓGICOS DE Cycloneda sanguinea (L.) (Coleoptera: Coccinellidae)

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Author(s): Valquíria da Rocha Santos Veloso | Ronaldo Veloso Naves | Jorge Luiz do Nascimento | Paulo Marçal Fernandes | Antônio Henrique Garcia

Journal: Pesquisa Agropecuária Tropical
ISSN 1983-4063

Volume: 25;
Issue: 2;
Start page: 123;
Date: 2007;
Original page

Keywords: Cicloneda sanguinea | joaninha | controle biológico

ABSTRACT
The objective of this work was to study the biology of predator Cycloneda sanguinea (L.,1763), having as prey aphids of genus Dactynotus sp. The observations were realized in the Entomo1ogy Laboratory of Phytosanitary Department - EA/UFG. The environmental conditions of temperature and relative humidity presented during the study period an average of 23°C and 79,4%, respectively. The coccinelideos were collected in field and packed in breeding cages. The studies were initiated with larvae originated from these insects layings. The hatching period of eggs was of 3 days with a viability of 86%. The 1arvae were observed every day, checking the biologic parameters as: larva period of 9.43 days, having each instar an average duration of 2.43, 1.57, 1.86 and 3.57 days, respectively for the 1st, 2nd, 3rd, and 4th instars. The period of pre-pupa and pupa were of 0.86 and 4.14 days, respectively. The biologic cycle from larva to adult was of 14.43 days. Larva as well as adults are predators. The larva consumption was an average of 14.6 aphids/day and consumption during all larva period was of 137.76 aphids. It was observed an increase in quantity of consumed aphids from the 1st to the 4th stages. KEY-WORDS: Cicloneda sanguinea; lady beetle; biological control. Estudou-se no presente trabalho a biologia da Cycloneda sanguinea (L.), utilizando como presa afídeos do gênero Dactynotus sp. As observações foram realizadas no Laboratório de Entomologia do Departamento Fitossanitário - EA/UFG, com temperatura e umidade relativa média de 23°C e 79,4%, respectivamente. Os estudos foram iniciados com larvas oriundas das posturas coletadas no campo. O período de incubação observado foi de três dias e a viabilidade de 86%. O período larval foi de 9,43 dias, a duração média de cada instar foi de 2,43, 1,57, 1,86 e 3,57 dias, respectivamente, para 1°, 2°, 3° e 4° instar. O período de pré-pupa e pupa foram de 0,86 e 4,14 dias, respectivamente. O ciclo biológico larva/adulto foi de 14,43 dias. As larvas apresentaram um consumo diário médio de 14,6 pulgões e durante todo o período larval de 137,76 pulgões, observando-se um aumento de consumo do primeiro para o quarto estágio. PALAVRAS-CHAVE: Cicloneda sanguinea; joaninha; controle biológico.

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