You are here:

Plant Diseases/Experts

ExpertAverage RatingsExpertise

Dr Stephen Vann

U.S.
Available
Plant Diseases and Disorders of Lawn Grasses, Trees, Vegetables,and Ornamentals

kathy crowley

U.S.
Available
Tropical plants in Florida, Bamboo, Vines, Fruit trees, Antique Roses, rare plants from around the world.

Jim Hyland

U.S.
Available
30 years experiance in the ID and management of forest diseases and ID of landscape tree diseases.

Recent Answers

2009-11-04 white rice looking things on all leaves of gardenia plant:

Hi Lucy: It's getting about that time of the year to bring the plants in off the deck or porch. We have already had a few nights in the low 40's, a bit chilly for those tender ones! I suspect that

2009-11-04 gnats:

Hi Wanda, sounds like white flies as they are small and scatter when you move the plant. I sould suggest Atomic Grow for your solution for a permanent solution to both problems. It is also organic and

2009-11-04 brown spots on maple leaves:

These are leaf spot caused by a fungus. I am going to guess it is Phyllostict leaf spot. A leaf spot that infects late in the growing season causes very little damage except maybe the leaves will fall

2009-11-04 green growth on maple tree trunk:

These are lichens. Lichens are an example of a symbiotic relationship between algae and certain fungi. They are capable of producing their own food. The algae associated with the fungus is a green or

2009-11-03 Black Knot on Cherry Trees:

Black knot can be managed by pruning out and destroying all galls infecting the tree. Prune trees 2-3 inches below the gall, preferably when the tree is dormant. Sanitation measures usually control the

All Answers

Answers by Expert:


Ask Experts

Volunteer


©2009 About.com, a part of The New York Times Company. All rights reserved.