Semiochemical Strategies for Tortricid Moth Control in Apple Orchards and Vineyards in Italy
2016
Ioriatti, Claudio | Lucchi, Andrea
- This review summarizes work done in Italy in taking semiochemical-based management of orchard and vineyard pests from the research and development stage to successful commercial deployment. Mating disruption (MD) of codling moth Cydia pomonella (CM) was originally introduced into the Trentino-South Tyrol areas to address the development of CM resistance to insecticides, particularly insect growth regulators (IGRs), and to mitigate the conflict at the rural/urban interface related to the extensive use of insecticides. Although the mountainous terrain of the area was not optimal for the efficacy of MD, commitment and determination led to the rapid adoption of MD technology throughout the region. Grower cooperatives and their field consultants were strongly influential in convincing growers to accept MD technology. Public research institutions conducted extensive research and education, and provided credible assessments of various MD technologies. By 2016, the deployment of MD in effective area-wide strategies in apple (22,100 ha) and grapes (10,450 ha), has resulted in better control of tortricid moth pests and a substantial decrease in insecticide use. Collaboration between the research community and the pheromone industry has resulted in the development of increasingly effective single-species dispensers, as well as multi-species dispensers for the control of both target and secondary pests. Over the last 20 years, hand-applied reservoir dispensers have shown excellent efficacy in both apple and grapes. Recently, aerosol dispensing systems have been shown to be effective in apple orchards. Further research is needed on the efficacy of aerosols in vineyards before the technology can be widely adopted. The successful implementation of MD in apple and grape production in Trentino-South Tyrol is expediting adoption of the technology in other Italian fruit production regions.
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