mating disruption with low density diffusers for the ... - SciELO
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mating disruption with low density diffusers for the ... - SciELO
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MATING DISRUPTION WITH LOW DENSITY DIFFUSERS FOR THE MANAGEMENT OF ORIENTAL FRUIT MOTHS (LEPIDOPTERA: TORTRICIDAE) IN APPLE ORCHARDS UNDER SUBTROPICAL CLIMATE IN SOUTHERN BRAZIL1 LINO BITTENCOURT MONTEIRO2, ALEXANDER SOUZA3, JEFERSON ARGENTON4 ABSTRACT - The oriental fruit moth, Grapholita molesta Busck, and fruit flies, Anastrepha fraterculus L., are the important apple pests under Subtropical climate in Southern Brazil, and control is normally accomplished with insecticides. An alternative strategy for the control of G. molesta is mating disruption, through the use of pheromones. Mating disruption strategies using a low density of dispensers (20) per hectare were tested in comparison with conventional pesticides for control of G. molesta in commercial Gala apple orchards in Fraiburgo, SC, for a period of five years. The average field efficiency period of mating disruption formulation over five years was 113 days. In this period the mating interruption index on mating disruption plots was 84.8% over five years. Damage to Gala apples by oriental moth larvae was low (
