Environmental Entomology (1999) 28, 398-406

N.J. Bostanian, M. Binns, J. Kovach, G. Racette and G. Mailloux (1999)
Predictive model for strawberry bud weevil (Coleoptera : Curculionidae) adults in strawberry fields
Environmental Entomology 28 (3), 398-406
Abstract: Three different sampling methods (sweep net, D-Vac, tapping into a carton container) were evaluated for Anthonomus signatus Say in strawberry fields. The results suggest that sampling with a sweep net reflects population numbers best. A predictive model for adult abundance was developed to describe and predict population build-up. The strawberry fields used in the study were in their 2nd yr of production. Overwintering adults generally begin to appear in a strawberry field ~300 cumulatitive degree-days (DD) calculated from 1 April at temperatures above 0°C. These weevils attain maximum abundance anywhere from 500 to 670 DD. Within that interval, a treatment with cypermethrin or chlorpyriphos was effective against this pest. The summer generation attained maximum abundance anywhere from 1,250 to 1,650 DD. A treatment with chlorpyriphos at 1,679 DD reduced the summer generation of weevils and decreased clipped buds in the field the following year.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Noubar J. Bostanian

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anthonomus signatus	Strawberry (Fragaria)