RT Journal Article SR Electronic A1 Burg, Patrik T1 The classification of defoliators in relation to damage and quality of bunches JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis YR 2014 VO 55 IS 2 SP 21 OP 26 DO 10.11118/actaun200755020021 UL https://acta.mendelu.cz/artkey/acu-200702-0003.php AB Defoliation of vineyard find between growers always wider exercise. The ground are ecological aspects and for ever growing title to qualitative character of production. Thrifty ablation of leaves from winegrapes zone, fulfilment in correct term highly effects on health of clusters and quantity of their contentual matters.The aim of this work was monitoring of technic-economical parameters by 2 sets with defoliators. Furthemore was evaluated quality of their work in relation to quantity of involved bunches.