BIOLOGICAL CONTROL OF ORIENTAL FRUIT MOTH ON PEACH IN BULGARIA
Peach is one of the major fruit species in Bulgaria. Oriental fruit moth (OFM), Cydia molesta Busck is one of the most important pests of this crop. Its control in commercial orchards has been carried out mainly by conventional methods, using chemical insecticides. Considering human health condition and preservation of natural environment, the use of chemicals in fruit growing must be limited by more precise timing and thus reducing the number of treatments and/or by introducing new, biological methods of pest management. The environmently-friendly methods related to sex pheromones are the most promising. At first, synthetic pheromones were used for monitoring of flights of the pests. Recently, mating disruption (MD) appeared as a more effective solution, completely eliminating chemical pesticides. In the years 2007-2008 a program aimed at management of OFM without pesticides was carried out. It relied on mating disruption with Ecodian CM (Isargo Spa, Italy) dispensers. The trials were carried out in an isolated 1.5 ha peach orchard. Catches of moths in pheromone traps were completely inhibited in the MD block, whereas they were numerous in the reference, conventionally treated orchard, in both years of study. Ecodian CM dispensers, installed before the first flight of OFM males, efficiently reduced fruit damage down to 0.2-0.3% at harvest. In the reference orchard, with 4-5 insecticide treatments against OFM, damage reached 4.7-6% before harvest. The results indicate that mating disruption for control of oriental fruit moth may be effective in Bulgaria. Its use will be helpful in meeting the requirements of EU for residue free fruit production.
Kutinkova, H. and Dzhuvinov, V. (2012). BIOLOGICAL CONTROL OF ORIENTAL FRUIT MOTH ON PEACH IN BULGARIA. Acta Hortic. 962, 449-453
IPM, Cydia molesta, mating disruption, Ecodian CM dispensers, flight dynamics, fruit damage, shoot damage