This assures adequate uptake of the fungicide and translocation to new growth, providing protection of new growth. For best results, Tattoo C should be used as a preventive. The potato late blight hot line began operation on Wednesday, June 2, 1999. Potato disease management tips with an emphasis on late blight and early blight will be updated three times a week on Monday, Wednesday, and Friday. All recommendations will be made by Dr.
Most infections occur on the petals.
The kits provide a means of culturing petals in petri plates on a medium suitable for Sclerotinia. An instruction booklet can be purchased that gives details on performing the test and includes color photos on reading the results. The kit also contains sclerotia which are plated along with the petals for a positive check of Sclerotinia. The cultured petals can then be compared to the positive check. Adequate sampling of a field requires collecting flowering branches from several areas of the field.