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The Dynamics of Pheromone Release in Two Passive Dispensers Commonly Used for Mating Disruption in the Control of Lobesia botrana and Eupoecilia ambiguella in Vineyards

Marta Corbetta,Luca Bricchi,V. Rossi,G. Fedele

Published 2024 in Insects

ABSTRACT

Simple Summary Pheromone release is very important for mating disruption (MD) efficacy, and environmental conditions must be considered for their effect on pheromone release (PR). The aim of this study was to evaluate the effect of weather conditions on the pheromone release patterns of two passive dispensers used for the MD of grapevine moths. The study was conducted in four vineyards in northern Italy. For both dispensers, equations based on the accumulated temperature and vapor pressure deficit explained the PR dynamics with high accuracy. These equations can provide information on the PR during the grapevine-growing season for each dispenser type and may support a better management of MD against moths. These equations should also be linked to mathematical models predicting the phenology of grapevine moths populations to inform farmers about pheromone emission at the time of adult flights. However, the equations should be further validated against independent data collected under diverse environmental conditions before use.

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