A thermal unit summation model for the phenology of <i>Rhagoietis completa</i> (Diptera: Tephritidae)
Abstract
Predictions of various biological events in the life cycle of the walnut husk fly, R. completa Cresson in the Willamette Valley of Oregon were made using a thermal unit summation model. The model was based on data from a 3-year field study and was tested in 1993. The model was found to be more accurate than calendar dates at predicting several aspects of its phenology including adult emergence, female sexual maturity, and oviposition.
Key words: Insecta; Diptera; Tephritidae; walnut husk fly; Rhagoletis completa; thermal unit summation model; IPM; Oregon
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