Optimizing Pest Insect Monitoring in viticulture

Abstract : Pest insect monitoring in French viticulture focuses on leafrollers (Lobesia botrana, Eupoecilia ambiguella) and leafhoppers (Empoasca vitis, Scaphoideus titanus) showing 1 to 4 generations annually. Monitoring of these insects through adult trapping, eggs and larval counts should be optimized for best performance. Large size (up to 12000 ha) monitoring networks have been developed over the last few years. Observation period, density and frequency are based on incomplete expert knowledge on dynamics and mobility. Insect dynamics show strong spatial-temporal structure that seems relatively stable among years. Depending on the species, landscape does influence local abundance. Causal explanations of spatial differences in phenology should relate to meso-climatic factors (temperature, rainfall and drought) through their impacts on key events in the insects life cycle (mating, egg laying). Differences in phenology can also have a huge impact on population dynamics since reproductive success is strongly depending on weather conditions during such key events. Progress is being made to optimize the monitoring network in a socio-economic context as its performance and accuracy depends on its acceptance by the farmers.
Type de document :
Communication dans un congrès
Towards a multi-scale approach for improving pest management. System management for sustainable insect pest control: from local to regional approaches, Oct 2011, Montpellier, France
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http://hal.cirad.fr/cirad-00645909
Contributeur : Thierry Brévault <>
Soumis le : lundi 28 novembre 2011 - 18:01:21
Dernière modification le : mercredi 29 novembre 2017 - 09:49:56

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  • HAL Id : cirad-00645909, version 1

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Maarten Van Helden, Séverine Mary, Antoine Verpy, Frédéric Gil, Virgil Fievet. Optimizing Pest Insect Monitoring in viticulture. Towards a multi-scale approach for improving pest management. System management for sustainable insect pest control: from local to regional approaches, Oct 2011, Montpellier, France. 〈cirad-00645909〉

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