What are these things on my leaves?

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Taney2 Birmingham, AL Jun 02, 2015

What are these things on my leaves? Yikes!

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trackinsand mid central, FL(Zone 9a) Jun 02, 2015

looks like some species of cotton scale....really nasty. you need to spray with a light summer oil to suffocate them...or try liquid castile soap and water. that will do it.

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Taney2 Birmingham, AL Jun 02, 2015

Yikes again. This tree is tall as the house. How do I treat the whole tree?

Thanks.

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trackinsand mid central, FL(Zone 9a) Jun 02, 2015

Assuming I am right in my id, I would get a liquid systemic (Bayer makes several effective products) and drench the root system as directed on the label. I think I would look for one with Imidicloprid as the main ingredient. It should work for any type of scale. Yours aren't fixed scale, they are the crawling kind.
Someone else here will know the correct terms.

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Taney2 Birmingham, AL Jun 03, 2015

Thanks, trackinsand. If anyone else has any thoughts, I am all ears.

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Flapdoodle Minot, ND Jun 03, 2015

These appear to be cottony maple scales, Pulvinaria innumerabilis. They do not appear to cause serious harm to mature/established trees.
http://www.extension.umn.edu/garden/insects/find/scales/

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Taney2 Birmingham, AL Jun 10, 2015

Thanks Flapdoodle.

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trackinsand mid central, FL(Zone 9a) Jun 13, 2015

Good news!

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