Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/80398
Type: Artigo de periódico
Title: Influence of temperature on development time and longevity of Tachinaephagus zealandicus (Hymenoptera : Encyrtidae), and effects of nutrition. and emergence order on longevity
Author: De Almeida, MAF
Do Prado, AP
Geden, CJ
Abstract: Tachinaephagus zealandicus Ashmead is a gregarious endoparasitoid that attacks third instars of muscoid flies in the Southern Hemisphere. The purpose of the current study was to evaluate the influence of six constant temperatures (16, 18, 20, 22, 25, and 27degreesC) on development time, the influence of emergence order on longevity, and the effects of temperature and food treatment on longevity. Emergence success was greatest at 22degreesC for both males and females; significantly fewer (24.1-30.4%) parasitoids emerged at 16 and 25degreesC compared with 22degreesC. Development time ranged from 24.0 to 56.9 d for both sexes. No emergence was observed at 27degreesC. Early-emerging parasitoids had greater longevity than parasitoids that emerged later from the same cohorts. The longevity of females given honey and water decreased with increasing temperature, and those reared at 16degreesC lived about three times longer than those kept at 27degreesC. Females given honey and water had similar longevities at 16-20degreesC, and females that were given only water lived for only 4.8-7.6 d at all temperatures. Females lived significantly longer overall than males at all temperatures except 16degreesC, but differences due to sex were small compared with the effects of temperature and nutrition. Further investigations will be necessary to determine the climatic zones in which T zealandicus is most likely to be an effective biological control agent of muscoid flies.
Subject: Tachinaephagus zealandicus
muscoid flies
temperature
longevity
development rate
Country: EUA
Editor: Entomological Soc Amer
Rights: aberto
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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