The present work was conducted in 2000 and 2001, in a peach-tree commercial orchard 'Marli', in the municipal district of São Jerônimo, RS, latitude 30º05'52" S, longitude 51º39'08" W and altitude of 46 meters. The population of Grapholita molesta (Busck, 1916) was monitored with the goal of comparing control techniques praised in the Integrated Production system (PI) and Conventional Production system (PC), as well as its reflexes in damages of fruits and plants of each system. In both years, monitoring used in PI showed efficiency to decrease the population to low levels and among the limit of three insecticides applications for the insect control, when compared with the PC. In this kind of production, the applications were realized each 10 days begining in October, in a total of seven applications in the first year and nine in second year. With regard to the damages in fruits and pointers, monitoring in PI allowed a control so efficient as in the PC, with the advantage of decreasing the number of applications. The monitoring showed efficient reduction in chemical products applications number, with considerable reduction in the peach production costs and smaller impact on the environment.
Prunus persica; peach; monitoring
