Bug decimating ornamental Acer


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HI guys, looking for a bit of help, have a tiny bug that is eating all the leaves off my Acer.

Tiny black, they leave a stick residue on the leaves.

Is there anything I can do to help the plant ?

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I also found these on the main stems ? bit like cobwebs when u put finger on them
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I use Orchard Spray on all my ornamental trees. It seems to keep most everything off my Chinese Maples and Trident Maples so it probably would work for you.
 
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Hi again, got these tiny bugs hiding in small folds of the plant.

Seem to have 4 dots on their backs, they seem to be immune to insecticides. The grid on the picture is 5x5mm so you can see how tiny they are

thanks
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What you have there is scale insects. You need to deal with the problem fast if you want to control it. On the trunk swab the insects with alcohol or a neem based product (sometimes found in leaf shine I think)
If the branches are infested you must cut them off and burn them complete with the insects.
 
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Hi again, got these tiny bugs hiding in small folds of the plant.

Seem to have 4 dots on their backs, they seem to be immune to insecticides. The grid on the picture is 5x5mm so you can see how tiny they are

thanksView attachment 56265
That looks like a mite of some sort and they are DIFFICULT to get rid off. You said they were in the "small folds". Do you mean in the bark or somewhere else on the tree. Most mites, depending on where they are, are most times fought with some type of oil, usually either Neem Oil or horticultural oil, but the tree must be dormant. We need to know exactly where these bugs are located. Also, a better-focused picture would help.
 
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Hi, thanks for the reply, the bugs are sat in small folds in the bark of the tree.
Got a slightly better picture for you, but its the best my USB camera can do.
Also a picture of the fold in the bark, u can see two of these guys in there..

regards
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I do not now believe that this is a mite. I think it is a beetle in its juvenile stage.. One doesn't see a single or even two mites. He sees dozens. Are these things hard bodied or soft and do they have wings? Are they on the leaves of the tree?
 

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