Vertebrate Pest Conference: Proceedings
Vertebrate Pest Conference Proceedings: 8th (1978)
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Date of this Version
March 1978
Document Type
Article
Abstract
Bird communities visiting and causing damage to sunflower crops were studied in Western Switzerland. The greenfinch is the main pest species. A population study of that species was carried out in Changins, near Nyon, and crop protection techniques, including an ultrasonic device, were tested.