Day-degree development and phenology modelling of the immature stages of Chrysophtharta agricola (Chapuis) (Coleoptera: Chrysomelidae), a pest of eucalypt plantations

Helen F Nahrung; G R Allen; V S Patel

doi:10.1111/j.1440-6055.2004.00397.x

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Day-degree development and phenology modelling of the immature stages of Chrysophtharta agricola (Chapuis) (Coleoptera: Chrysomelidae), a pest of eucalypt plantations

Journal article

Peer reviewed

Day-degree development and phenology modelling of the immature stages of Chrysophtharta agricola (Chapuis) (Coleoptera: Chrysomelidae), a pest of eucalypt plantations

Helen F Nahrung, G R Allen and V S Patel

Australian Journal of Entomology, Vol.43(2), pp.177-183

2004

DOI: https://doi.org/10.1111/j.1440-6055.2004.00397.x

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Abstract

Zoology

Evolutionary Biology

Ecological Applications

eucalyptus nitens

oviposition

paropsini

lower temperature threshold

Day-degree developmental requirements and lower temperature thresholds were determined in the laboratory for the immature lifestages and preoviposition periods of Chrysophtharta agricola, a pest of eucalypt plantations in Tasmania and Victoria. These data were used to provide a predictive model for C. agricola’s spring-summer phenology under field conditions. The model was validated using field data from two Tasmanian field sites over three seasons. Lower temperature thresholds for immature development ranged from 2.8°C (Liv) to 10.3°C (Li), while the lower temperature threshold for oviposition was 7.4°C for teneral and overwintered adults. Total immature development time (egg-adult) was approximately 400 ± 16 DD above 8 ± 0.41°C. Development time did not differ between males and females, or between offspring of different females. Beetles reared at 25°C were significantly larger than those reared at low temperatures. Day-degree models were usually a good predictor of the appearance of developmental stages in the field.

Details

Title: Day-degree development and phenology modelling of the immature stages of Chrysophtharta agricola (Chapuis) (Coleoptera: Chrysomelidae), a pest of eucalypt plantations
Authors: Helen F Nahrung (Author) - University of Tasmania
G R Allen (Author) - University of Tasmania
V S Patel (Author) - CRC for Sustainable Product Forestry
Publication details: Australian Journal of Entomology, Vol.43(2), pp.177-183
Publisher: Wiley-Blackwell Publishing Asia
Date published: 2004
DOI: 10.1111/j.1440-6055.2004.00397.x
ISSN: 1326-6756
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99450500502621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Entomology

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