Temperature influence on the nymphal biology of Dichelops melacanthus (Dallas, 1851) (Heteroptera: pentatomidae)

Authors

  • Viviane Ribeiro Chocorosqui Universidade Estadual de Londrina
  • Antônio Ricardo Panizzi Empresa Brasileira de Pesquisa Agropecuária

DOI:

https://doi.org/10.5433/1679-0359.2002v23n2p217

Keywords:

Stinkbug, Development, a biotic factor, Mortality.

Abstract

Performane of nymphs of the green belly bug, Dichelops melacanthus (Dallas, 1851), under three different temperatures (15, 20 e 25oC) was evaluated in the laboratory. It was impossible to evaluate the temperature effect since egg stadium, because no nymph ecloded under 15 and 20oC. D. melacanthus nymphs were maintained under those different temperatures since the first stadium. Upon reaching the second instar, they were placed individually in Petri dishes and fed with green pods and dry seeds of soybean. The environmental cahambers were maintained with relative humidity of 65±5% and photophase of 14 hours. Nymphs maintained under 15oC showed 100% of mortality on the second instar. Under 20oC, only one adult emerged; the total mortality (2nd–5th instar) was about 96,7%. Under 25oC, 56% of nymphs completed their development, becoming adults. The single nymph (male) from 20oC required 56.0 days to complete development. The developmental time (2nd-5th instar) under 25oC was 24.8 and 24.0 days, for females and males, respectively. These results suggest that D. melacanthus was not able to develop under mild temperatures (15oC e 20oC) in the laboratory.

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Author Biographies

Viviane Ribeiro Chocorosqui, Universidade Estadual de Londrina

Engenheira Agrônoma, formada na Universidade Estadual de Londrina (dez/1995), com Mestrado em Agronomia na mesma universidade, em convênio com a Universidade de Gent, Bélgica (1996-1998), Doutorado em Entomologia na UniversidadeFederal do Paraná, em convênio com a Embrapa Soja, em Londrina, Paraná (1998-2001). Bolsista do Projeto “Desenvolvimentode Programa de Manejo Integrado da broca-do-cafeeiro, Hypothenemus hampei (Ferrari, 1876), com a utilização do fungoentomopatogênico Beauveria bassiana”, conduzido na Universidade Estadual de Londrina, financiado pelo convênio Embrapa/Funcafé (FAGRO). Endereço para correspondência: UEL/CCA/ Depto de Agronomia, Campus Universitário, Caixa Postal6001, CEP 86051-990, Londrina, Paraná – Telefone res.: (043) 3321-7071 – com.: (043) 3371-4725.

Antônio Ricardo Panizzi, Empresa Brasileira de Pesquisa Agropecuária

PhD, pesquisador da Embrapa Soja – Rod. Carlos João Strass, Acesso Orlando Amaral, s/n, Caixa Postal 231, CEP 86001-970,Distrito de Warta, Londrina, Paraná.

Published

2009-04-29

How to Cite

Chocorosqui, V. R., & Panizzi, A. R. (2009). Temperature influence on the nymphal biology of Dichelops melacanthus (Dallas, 1851) (Heteroptera: pentatomidae). Semina: Ciências Agrárias, 23(2), 217–220. https://doi.org/10.5433/1679-0359.2002v23n2p217

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