ISHS Acta Horticulturae 374: III International Peach Symposium
MATING DISRUPTION METHOD AGAINST Cydia molesta (BUSCK) IN ITALY |
| Authors: | P. Cravedi, F. Molinari |
| Keywords: | peach, Cydia molesta, mating disruption, Italy, pheromones |
| Abstract:
C. molesta is certainly the pest against which the greater number of treatments is applied, especially from June, when the risk of fruit damage is greater. The presence in the same orchard of numerous cultivar with different ripening dates is very common in many peach growing areas. This situation makes the carrying out of differentiated treatments difficult so that farmers often can't cope with the problem of obtaining a good protection against pests together with the absence of toxic residues on fruit. Mating disruption with synthetic pheromones against C. molesta has given good results in Italy; after early trials in 1987, the method has been applied in Italy on a larger scale: in 1992, over 3000 hectares of peach orchards have been treated with pheromones. The amount of pheromone to be applied in order to obtain mating disruption can be considerably different from case to case. In areas where C. molesta populations were lower, it has been possible to reduce gradually the amount of pheromone applied, and place a limited number of dispenser only on the borders of the orchard. The results of the application of mating disruption method were particularly remarkable in a single district of 300 hectares of peach orchards treated in 1990. This first trial went on, in the following years, under the direction of the local organisation of technical assistance: in 1992 the district extended to 700 hectares of peach orchards. | |
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