Apple Trees
Q.

Hi. We are wondering what this “disease” is on the leaves of one of our apple trees?

Zone Kent, UK | lizmul added on May 30, 2019 | Answered

As the leaf gets more “covered” it starts to curl up - as in the final photo. They don’t appear to be moving, so we didn’t think they are aphids - but have no clue!!! Thank you for any help you can provide.

    A.
    A.Answers to this queston: Add Answer
    Downtoearthdigs
    Certified GKH Gardening Expert
    Answered on May 30, 2019

    This appears to be a heavy Aphid infestation.

    Neem Oil is a good treatment.
    Follow packaging directions for application. I would recommend treating every 3 days for 2 weeks.
    https://www.gardeningknowhow.com/plant-problems/pests/insects/aphids-tree-disease.htm
    https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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