Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Nedyalka Palagacheva, Pavlin Vasilev, Radoslav Andreev, Hristina Kutinkova, Desislava Stefanova
Combined pheromone dispensers Isomate A/OFM are used for control of most important pests on peach and plum - Oriental Fruit Moth (OFM), Grapholita molesta (Busck.), Plum Fruit Moth (PFM), Grapholita funebrana (Tr.) and Peach Twig Borer (PTB) Anarsia lineatella (Zell.) by means of mating disruption (MD), at a rate of 800-1000 dispensers per hectare. The aim of the study was to evaluate possibilities for MD of these three important pests using dispensers Isomate A/OFM at a normal and a reduced rate. Experiments have shown that pheromone dispensers Isomate A/OFM at a rate of 1000 pieces per ha provide excellent control for all three pests. At a reduced rate of 300 pieces per ha Isomate A/OFM shows a high degree of control of the OFM and PTB - no damage from both pests was found, but this rate was not sufficient for PFM and damaged plum fruits at harvest exceeded 40%. At the rate of 600 pieces per ha the results were better - damaged fruits from PFM, at harvest time, did not exceed 14%.
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