Resistance of Botrytis cinerea to Dichlofluanid in Greenhouse Vegetables

During a survey in Crete in 1986, samples of various vegetables infected by Botrytis cinerea were taken from 76 greenhouses, and the sensitivity of the fungus to dichlofluanid was tested by a spore germination test. Also, 52 single-spore isolates obtained from 10 greenhouses were tested for their sensitivity to dichlofuanid with respect to mycelial growth, spore germination, and disease control by foliar sprays. Thirteen single-spore isolates of B. cinerea, obtained from vineyards in which no control against gray mold had ever been applied, were compared with the vegetable isolates. (…)