Well, the web looks a lot like the web in the picture on the site you
referenced....but I have not found any larvae, caterpillars, cocoons, or
moths. I could only check the branches I could reach from the
ground....could they all have moved up higher? Yet, if so, I shou.ld find
left-behind cocoons and eggs cases. Probably 80 % of the entire tree is
covered with the web. All of the leaves are turning brown, so I think the
whole tree will be defoliated and probably die.

"MissGinger" wrote in message
.. .
tent caterpillars?

http://www.tent-caterpillar.com/

http://www.holoweb.com/nature/insect...terpillars.htm


"Jim Caldwell" wrote in message
...
We have a large tree, over 50 ft. tall, in our yard. It has been very
hot
and dry here for several weeks....100+ heat index. The trees leaves
have
started turning brown, so I thought it might be needing water. Looking
close
at the tree, I found that almost all of the tree branches, from the
smallest
down to the trunk, are coverered with what looks like a very fine spider
web. Also, many of the leaves have a white granular substance on them.
It
is
killing the tree rapidly, but not by cutting off the sunlight, because
the
web is so thin, surely it is still getting enough light. Anyway, I could
not
see that it was encasing the leaves also. What is causing this? Sorry,
I
don't know what kind of ttree it is, but it is not an evergreen, and
never
has any fruit or blooms. No other trees in my area seem to have this,
either. There are three other trees on my lot, and they are all fine.