Abstract
Benzyl alcohol was tested for inhibition of conidium germination and mycelial growth of Botrytis cinerea in vitro. At ±200 ppm conidium germination, germ tube length and colony growth was strongly inhibited. Benzyl alcohol inhibition of conidium germination was temperature-dependent, but mycelial growth was not. When tested on inoculated Waltham Cross berries in vitro, control of botrytis rot was significantly reduced by berry injury. Although benzyl alcohol significantly reduced botrytis rot of two table grape cultivars (Waltham Cross and Barlinka) in cartons stored for four weeks, the level of control was poorer than that of SO2. Benzyl alcohol did not alter sugar levels of cold-stored berries but caused unacceptable levels of berry burn. The commercial use of this compound was rejected based on organoleptic tests and phytotoxicity.
- Received October 1989.
- Copyright 1990 by the American Society for Enology and Viticulture
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