White Poweder/Granules on Tomatoes!!!
Went to pick a few at a plot I'm renting this morning and there's a white powder - almost looks like salt - on all 13 tomato plants - leaves on the top half of the plant are curling. They were fine yesterday. Acid rain? I'm going to post on the Rocky Mountain forum too - it's also on the mulch below the tomatoes but not on the other side of the garden three feet away where there are peppers, squash, lettuce, etc. Only on the tomatoes - leaves and top of fruits. Any ideas? All the plots are organic so not allowed to use anything bad.