Destroy old fields after harvest. Be sure to spray fields before destruction and thoroughly incorporate crop residues. Late blight has now been positively identified on tomato in few locations around Immokalee. Lab analysis has positively identified one sample as US 8 a potato strain and another US 17 a tomato strain, which was very active in this area several years ago. This expires May 20, 1999.
Late blight remains widely present on potato around the region.
Infection levels are low to moderate. Reports indicate that the disease appears seems to be under control in most fields with little active sporulation being noted in most fields. Some increase in incidence is being reported in some cases. Gummy stem blight is being reported widely on watermelon. Infection levels are generally low to moderate.