[Date Prev][Date Next][Date Index]
E-M:/ Plants in Trouble?
We have a few acres dedicated to nature.
Among the plant life are poplars, silver maple and two varieties of sweet
sumac. All have undergone some sort of stress this year. Is there
someone out there who can deduce the problem with these plants from the limited
information I can provide?
The poplars have been losing leaves steadily for
the past month and now have perhaps 30 percent of them remaining. The
leaves are heavily mottled in brown. The cellular structure seems to be
intact (there is no open, lacey appearance; the leaf still has a complete
surface). The brown area is void of life, and dry. All of the
poplars seem to be affected.
Approximately half of the silver maples have 6 -12
large black spots (1/4 to 1/2 inch) on the leaves. The spots are dry and
bow upward from the top surface of the leaf (much like a bubble without a bottom
The sumac compound leaves have dried and shriveled,
but the leaflets are still clinging to the stem. The leaves are a
gray-brown. Some of the leaves on some of the plants are still
intact. Others are completely void of green leaves. Most of the
sumac have some damage.
What is happening to each of these? Is this a
cyclical thing? Are the plants being affected by viruses, bacteria or
insects? Could it be a result of the stress from the drought last
year--weakening the plant and making it more prone to damage?
To anyone who can diagnose these, thank