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I've never seen many insects on my Jerusalem artichokes before but this year they seem to be plentiful. Are they pests? They do seem to be having a good time and there doesn't seem to be any leaf damage though those black spots look like insect feces.

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My guess is that they're probably some type of leafhopper.

  • This second picture is XXX. I am in a huge snit. "They seem to be having a good time"...they certainly do not look like they are harming your plants at all at the moment...I gotta pull it together. Graham...major grins! – stormy Dec 30 '17 at 9:35
  • The first picture is definitely a leaf hopper. Which one exactly is beyond me at the moment. – stormy Dec 30 '17 at 9:52

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