SPIDER MITES ON EVERGREEN TREES - Knowledgebase Question

Reno, NV (Zone 5B)
Question by gdisibbio
April 3, 2007
What Ortho chemical could I use to get rid of spider mites that are destroying my evergreen trees?

If not Ortho, then what product can I use..

Please respond ASAP to the above e-mail address.


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Answer from NGA
April 3, 2007

0

These pests like dry, dusty conditions so hosing your plants off twice a week with a blast of water keeps them at bay. Dusting sulfur can be applied when the temperature does not go over 90 F (hose the sulfur off after a day or so). Special sprays (miticides) can also be purchased, but hose washing or sulfuring the foliage is simpler and quite effective. If this does not work for you, I suggest you take a sample of the affected foliage to your County Cooperative Extension office to verify the insect. They will be able to suggest control methods. Good luck!

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