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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
Citation
Nahrung, HF and Allen, GR and Patel, VS, Day-degree development and phenology modelling of the immature stages of Chrysophtharta agricola (Chapuis) (Coleoptera: Chrysomelidae), a pest of eucalypt plantations, Australian Journal of Entomology, 43 pp. 177-183. ISSN 1326-6756 (2004) [Refereed Article]
DOI: doi:10.1111/j.1440-6055.2004.00397.x
Abstract
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.
Item Details
Item Type: | Refereed Article |
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Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Population ecology |
Objective Division: | Plant Production and Plant Primary Products |
Objective Group: | Forestry |
Objective Field: | Hardwood plantations |
UTAS Author: | Nahrung, HF (Ms Helen Nahrung) |
UTAS Author: | Allen, GR (Associate Professor Geoff Allen) |
UTAS Author: | Patel, VS (Mr Vinu Patel) |
ID Code: | 26833 |
Year Published: | 2004 |
Web of Science® Times Cited: | 11 |
Deposited By: | Agricultural Science |
Deposited On: | 2004-08-01 |
Last Modified: | 2011-09-23 |
Downloads: | 0 |
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