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Predictive Model for Strawberry Bud Weevil (Coleoptera: Curculionidae) Adults in Strawberry Fields

Bostanian, N. J. ; Binns, M. ; Kovach, J. ; Racette, G. ; Mailloux, G.

In: Environmental Entomology, 1999, vol. 28, no. 3, p. 398-406

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    Titre
    • Predictive Model for Strawberry Bud Weevil (Coleoptera: Curculionidae) Adults in Strawberry Fields
    Auteur
    • Bostanian, N. J.. Horticulture Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, Canada J3B 3E6.
    • Binns, M.. Eastern Cereal,Oilseed Research Centre, Agriculture and Agri-Food Canada, Ottawa, ON, Canada K2C 1Y2.
    • Kovach, J.. New York State Agriculture Experiment Station, Cornell University, Geneva, NY 14456-0462.
    • Racette, G.. Horticulture Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, Canada J3B 3E6.
    • Mailloux, G.. Institut de Recherches et de Développement, en Agro-Environnement, Saint-Hyacinthe, QC, Canada J2S 480.
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Environmental Entomology, 1999, vol. 28, no. 3, p. 398-406. Oxford University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:294973
    Summary
    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