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

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Recent Answers from Jim Hyland

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

2009-10-29 Arborvitae Damage:

Yes the foliage should grow back from bagworm feeding. I would wait until next spring and see how the tree responds. Do not cut the top is will damage the tree. IF next spring the top foliage does not

2009-10-27 Mimosa Wilt:

Yes the disease is on mimosa trees where ever they will grow. The mimosa tree's native range is from Iran to Japan, but it is naturalized in the United States from New York, New Jersey to Louisiana and

 

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