My colorado acorn,ash and katulpa trees were diagnosed by a tree service to have this mite. They have sprayed Carbaryl 4L and fertilized as well as some pruning . The trees are about 10 to 15 yrs of age. They aren't budding like the rest of the neighborhood and are obviously ill. What else can I do for them? There are 18-20 on my property and I am worried the "tree guy" isn't experienced enough(like me). thankyou .

Reply to post by chuck owers, on May 18, 2002 at 01:50:14:

Hi Chuck, maybe it is time to dump your "tree guy", whatever/whoever that is. There are folks out here who specialize in tree health care but we generally call ourselves arborists. We may be a bit more expensive at the front end than the "tree guy", but we may also be able to resolve your problem in a safe and efficient manner. Look for an ISA Certified Arborist in your local yellow pages. Good Luck,

James Causton.

Reply to post by James Causton, on May 18, 2002 at 01:50:14:

From Insects that Feed on Trees and Shrubs, by Johnson & Lyon: "Mite activity decreases as the fgrowing season progresses. Sufficient foliage unaffected by gallsis produced during the growing season to sustain the tree without serious harm."

Whether the spray/feed treatment was an overreaction depends on your perspective and your neighbors. Certainly patience and biological controls were options.

If you take samples to your county ag extension office, they may ID the problem free. Never hurts to get a second opinion. And James, the tree guy may well have been certified, eh?