Environmental Entomology (1983) 12, 487-489

Dennis R. Ring, Vernon R. Calcote and Marvin K. Harris (1983)
Verification and generalization of a degree-day model predicting pecan nut casebearer (Lepidoptera: Pyralidae) activity
Environmental Entomology 12 (2), 487-489
Abstract: A prediction model for pecan nut casebearer, Acrobasis nuxvorella Nuenzig, developed at College Station, Tex., was tested by using data from Shreveport, La., and Brownwood, Tex. The procedures used in the original model produced similar results indicating a base temperature of 3.3°C was acceptable at all locations. The best start day was 21 March at Shreveport and Brownwood, compared with 12 March at College Station. This difference in start days may be used to generalize the model to other locations based on the differential in frost-free days among locations and the 9-day differential in the start day between College Station and the other two locations.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Marvin K. Harris

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Acrobasis nuxvorella		U.S.A. (mid S)