Insect Damage to Dwarf Cherry Trees (Zone 6b)

inv3nt0rAugust 3, 2014

I planted some dwarf cherry trees this spring near Windsor, Ontario / Detroit, MI. Of the three I planted, two are doing very well however the third has been attacked by some sort of unidentified insect from what I can tell.

I sprayed the plant with soapy water a few times and the damage seems to have been halted.

Can anyone identify the damage and suggest a pesticide or other mitigation measure I should take? I am a novice with fruit trees so I don't know where to start.

Thanks, and happy gardening!

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Could be sawfly larvae, if so you should find the tiny slug looking things on the leaves. Most any spray should be effective but only if it contacts the insects!

    Bookmark   August 4, 2014 at 8:18AM
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I will take a look for the sawfly larvae as suggested and get my hands on something specific for them if I can positively identify them.

I've attached another picture of the damage for reference.


This post was edited by inv3nt0r on Mon, Aug 4, 14 at 11:10

    Bookmark   August 4, 2014 at 10:56AM
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Japanese beetles like cherry trees. They leave a skeletal pattern on the leaf but some of yours look fully consumed so you might have both Japanese beetles and caterpillars or a larger beetle.

    Bookmark   August 4, 2014 at 11:55AM
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Thanks for the further advice. The Japanese beetles have been wreaking havoc in our area this year, so I wouldn't doubt that they got at the tree.

This particular tree was a little bit yellow following transplant while the others stayed a nice dark green. It looks like the insects are much more damaging to a plant in a weakened state.

From what I've read soapy water isn't effective against the beetles but apparently cedar oil can be used as a natural deterrent. I will try it out and hopefully the plant will come back strong next spring.

    Bookmark   August 4, 2014 at 6:27PM
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