PT  - JOURNAL ARTICLE
AU  - R. C. Pearson
AU  - D. G. Riegel
TI  - Control of Botrytis Bunch Rot of Ripening Grapes: Timing Applications of the Dicarboximide Fungicides
AID  - 10.5344/ajev.1983.34.3.167
DP  - 1983 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 167--172
VI  - 34
IP  - 3
4099  - http://www.ajevonline.org/content/34/3/167.short
4100  - http://www.ajevonline.org/content/34/3/167.full
SO  - Am J Enol Vitic.1983 Jan 01; 34
AB  - Various dicarboximide fungicides at 0.84 kg to 1.12 kg (active ingredient)/ha when applied first at 5° to 7° Brix and then two weeks later, provided a high level of control of Botrytis bunch rot (Botrytis cinerea Pers.) of ripening grapes in New York State. Control was rarely improved by making two additional applications at 5% or 90% bloom and at bunch closing. Control provided by two late season applications of vinclozolin was improved significantly when an early season treatment of gibberellic acid at 25 mg/L was included. The use of only two sprays per season may lessen the selective pressure by these fungicides and thereby delay development of fungicide-resistant strains.