A TEMPERATURE-DRIVEN MODEL TO SIMULATE THE POPULATION DEVELOPMENT OF THE PLUM FRUIT MOTH, CYDIA-FUNEBRANA (TREIT)

A simulation model of the flight activity of Cydia funebrana was const ructed on the basis of data on male captures in pheromone traps placed in a plum orchard in Central Bohemia in 1988 to 1990. The model was v erified from 1991 to 1993 as a method of predicting the course of the emergence flight activity of particular generations in dependence on d egree day values. The nonlinear model based on Richards' transformatio n was more suitable for the simulation than the linear one based on pr obit transformation. A technique has been proposed to use the model of C. funebrana flight activity for optimal timing of ovicide applicatio ns based on fenoxycarb and diflubenzuron in systems of integrated pest management in plum orchards.