ISHS Acta Horticulturae 422: International Conference on Integrated Fruit Production
MONITORING OF APPLE PESTS BY PHEROMONES |
| Authors: | S. Krnjajic, M. Injac, P. Peric, N. Dimic, M. Vukša |
| Abstract:
Monitoring the most important pest of larger apple orchards in Serbia was done with pheromone traps of the delta, funnel and Jackson type. Checking the possibility for the use of the OILB pheromone catch threshold was checked on basis of determining the action thresholds and damages made. With the K-pests such as the Cydia pomonella L., the pheromone catch threshold, spraying threshold and damage threshold proposed by OILB can be applied even in large fruit orchards. The only difference is that the pheromone traps are set close to gathering sites and around the edges of the apple orchards. With the RK-pests, whose appearance in orchards are caused by the pesticide application and ecologically unstable orchards, the OILB thresholds are excepted with those that can damage fruits, such as the Pandemis heparana D. et S and the Adoxophyes orana F.v.R. With the other RK-pests, the pheromone catch thresholds are more flexible, because the damages leave less consequences on the yield and fruit quality. So with the leaf mites (Phylonorycter blancardella F. and Ph. corylifoliealla Hb.) followed by the Synanthedon myopaeformis Borkh. the pheromone catch and spraying thresholds are adapted according to the production conditions. With the Aspidiotus perniciosus Comst., whose presence is not permitted, the pheromone traps are used to detect their presence. | |
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