Mark Hill - Harrisburg PA - Zone 6
I think it needs more nitrates or more magnesium. You might
want to up
its dosage of fertiliser.
NONONONONONONONONO. You don't fertilize a sick tree without
KNOWING what's wrong. Fertilizer is NOT medicine!
Yellow leaves do not necessarily indicate chlorosis. They CAN
indicate an unhappy tree -- often, one that's getting too much
water; sometimes one that has been overdosed with fertilizer.
Sometimes they only indicate old leaves.
There is a maple fungus that has no cure and for which a regular
dose of nitrogen fertilizer is suggested as a _possible_ way to
keep the fungus from spreading to the rest of the tree, but it is
something of a desperate wish.
Jim Lewis -
- Tallahassee, FL - This economy
is a wholly owned subsidiary of the environment. - Gaylord
Nelson, 1995
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