PROSPECTS OF USING ENVIRONMENTALLY FRIENDLY METHODS IN THE SYSTEM OF INTEGRATED CHERRY PROTECTION FROM THE EUROPEAN CHERRY FRUIT FLY RHAGOLETIS CERASI L.

In the Central-Nonchernozem Zone of Russia, the European cherry fruit fly Rhagoletis cerasi L. (Diptera: Tephritidae) appeared at the turn of the 20th and 21st centuries, and is currently the most significant cherry pest. In different years, this phytophage damages from 7 to 21 % of early ripening cherry fruits, from 38 to 57 % of medium ripening cherry fruits and from 61 to 75 % of late ripening cherry fruits. The flies fly out in the period of growth and ripening of fruits, when it is problematic to use chemical remedies, because of the danger of poisoning the crop with toxic residues. High effectiveness in the fight against R. cerasi is demonstrated by avermectin preparations called Phitoverm, CE (10 g/l) and Akarin, CE (2 g/l) with timely use. In order to establish a more accurate processing time it is necessary to use complex methods of observation – yellow glue traps, visual observation (including examination of fruits and preparation of females), and a reference point for the maturity terms among cultivars.