Chemical thinning of peach trees

Peach tree thinning is essential to harvest quality fruits and keep balanced production for several years. Manual of peach trees demands much work force increases costs. Chemical may be an alternative solution, but efficiency depends on doses species. This study aimed at evaluating the effect metamitron – applied different concentrations chemical in south Brazil. The experiment was carried out a commercial orchard where ‘Sensação’ cultivars, Morro Redondo, Rio Grande do Sul (RS) state, following were 100 mg L-1, 200 300 400 manual 40 days after full bloom (DAFB) treatment plants have no thinning. Fruit abscission, effective fructification, total number per plant, mean mass fruit diameter evaluated. Concentrations L-1 DAFB provides promoted high besides decreasing production. Therefore, results efficient practice similar production, diameter.