Diseased trees

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Old 07-09-06, 10:19 PM
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Diseased trees

We have quite a few trees on our property, that are covered in moss, and black and white stuff. They look diseased, and most of them are slowly dieing from it. Does anyone know what this is from, and what we can do about it? I have pictures of them, but I'm not sure how to get them on here. Thank you!
 
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Old 07-10-06, 12:52 PM
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Hi Kerri,

Not sure what you are seeing, but moss on a tree won't kill or generally harm the tree. I don't know what the black and white stuff is. You can post pictures at sites like photobucket and link them to here. It would also be helpful to know what is going on with the trees. Are the leaves turning colors, have spots, what color are the spots, are branches falling off, are there black growths around twigs, any sap falling from the trees? Do you know the species of tree?

Newt
 
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Old 07-10-06, 10:04 PM
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http://i114.photobucket.com/albums/n...i/100_0973.jpg

http://i114.photobucket.com/albums/n...i/100_0972.jpg

Here are two pictures of two different trees. These are both plum trees. We also have apples, lilacs, and ash trees that look like this. I don't see any sap oozing, but there are many dead branches throughout the trees. Most of those branches are covered with dead moss as well. The leaves seem to be fine.
 
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Old 07-11-06, 08:53 AM
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Kerri, what you see is lichen on the branches and trunks. Lichen don't harm the trees as they just use the tree as a place to live. Several birds, including humming birds use it to line their nests. If your trees have limbs that are dying, it's from something else. Here's some info on lichen.
http://www.rhs.org.uk/advice/profiles1201/lichen.asp
http://www.lichen.com/animals.html

From the pictures I see, it appears that your trees need some pruning. Dead branches can be pruned off at any time. Water sprouts, ones that grow straight up, are best pruned after the trees leaf out to help keep them from resprouting.
http://www.na.fs.fed.us/spfo/pubs/ho...ne/prun001.htm

This site has lots of pruning info with the links on the left.
http://hort.ifas.ufl.edu/woody/pruning/index.htm

Summer pruning of apples.
http://www.cahe.nmsu.edu/pubs/_h/h-312.html

Pruning neglected apple trees:
http://lofthouse.com/apple/neglect.html

Pruning young apple trees.
http://aggie-horticulture.tamu.edu/e...ple/apple.html

If you see something else on your trees, I'd love to see more pics.

If you need sites on pruning lilac just lmk.
Newt
 
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Old 07-11-06, 11:47 PM
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Thank you! I'll check all these links out. I'm sure you are right, because all the trees here have been neglected for years and years. I've pruned some things back since we moved in, but because of lack of knowledge, I've hesitated on the bigger ones. That would explain why there are so many dead branches. It's good to know all that stuff isn't hurting them!
 
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Old 07-11-06, 11:56 PM
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You are so very welcome! Don't hesitate to post more pics if you have questions.

Newt
 
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