Linda, Just a guess, but it sounds like eggs of some insect. Allen Bastrop Co. SE Central Tx. Linda Baranowski-Smith wrote: > Dear Gardeners, > > Last evening I noted something on the leaf growth on Ipomoea, Sweet Potato > Vine 'Blackie.' The plants are in our polyhouse. Whatever this "stuff > is, neither my GP nor I have ever seen it before. A picture would help > but, since I don't have that to send, I'll do my best to describe it... and > I'm hoping someone out there may have an answer. > > The gross appearance was of whitish projections on only the upper leaf > surface, something like witchhazel gall. They were firm to the finger > touch and about 1 to 2 mm high. We looked at them under a dissecting scope > and found them firmly attached to the surface. When broken from the > surface with a forcep, liquid was released but any larvae or spores were > not obvious. The structure was neat, like iced stalactites or stalagmites, > with smooth points and some surface bumps. > > Lordy, lordy, I hope it's not some major pathogen! We isolated two > affected plants. Can anyone help us ID this "stuff"? Thanks much! > > Linda in NW Ohio near Toledo/Lake Erie, USDA Zone 5 > llbs@mail.glasscity.net