White rust appears as small white blisters which usually form on the lower leaf surface, sometimes in concentric ring patterns. White rust is most commonly found on horseradish, radish, mustard, and turnip. Sanitation and long term crop rotations are the recommended methods for preventing both of these diseases, but once they appear foliar applications of fungicides are usually required to control them. Aliette can be used on other cruciferous crops as well. Applications should begin when disease conditions become favorable in areas with a history of the problem.
Peppers are subject to significant damage only after they begin to set fruit.
In addition to tours of the orchard and updates from university specialists, there will be a Cider School at which growers can obtain certification for cider making. This new, voluntary certification plan is intended to promote the cider industry of Illinois as proactive in meeting the challenges of making safe cider. For growers interested in vegetable production, there will be a tour of Fournie Farms near Collinsville in the afternoon. Fournie's specializes in sweet corn, horseradish and other fresh vegetables for a roadside stand market. If anything goes semi-good, we did it.