Articles
Trunk injection of plant protection product to defend chestnut tree from tortrix moths
Article number
1366_49
Pages
401 – 408
Language
English
Abstract
Cydia splendana and Pammene fasciana are major chestnut pests of chestnut in France.
The fruit damage caused by the larvae can reach over 50% at harvest.
Since the ban in 2011 on aerial spraying in France, the chestnut growers are in a technical impasse: conventional ground axial sprayers are poorly suited to the structure of chestnuts orchards (large volume trees). Trunk microinjection of plant protection products (PPP) as a target-precise delivery system could greatly reduce the drift and improve the efficiency of the PPP application.
Under the conditions of the 2020 experiment (high pest pressure: 61% of fruits were damaged at harvest in untreated trees), one of the microinjected plant protection products significantly reduced the rate of damaged fruit at harvest by 63%. No PPP residues were detected in fruits at harvest.
The fruit damage caused by the larvae can reach over 50% at harvest.
Since the ban in 2011 on aerial spraying in France, the chestnut growers are in a technical impasse: conventional ground axial sprayers are poorly suited to the structure of chestnuts orchards (large volume trees). Trunk microinjection of plant protection products (PPP) as a target-precise delivery system could greatly reduce the drift and improve the efficiency of the PPP application.
Under the conditions of the 2020 experiment (high pest pressure: 61% of fruits were damaged at harvest in untreated trees), one of the microinjected plant protection products significantly reduced the rate of damaged fruit at harvest by 63%. No PPP residues were detected in fruits at harvest.
Authors
N. Lebarbier, A. Renier, F. Verpont
Keywords
codling moth, orchard protection
Groups involved
- Division Plant-Environment Interactions in Field Systems
- Division Temperate Tree Fruits
- Division Temperate Tree Nuts
- Division Tropical and Subtropical Fruit and Nuts
- Division Horticulture for Development
- Division Vine and Berry Fruits
- Division Precision Horticulture and Engineering
- Commission Agroecology and Organic Farming Systems
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