Leafminers is a general term for tiny insects which feed and develop between the epidermal layers of leaves. Leafminers can be flies, wasps, moths or beetles. A common leaf miner is the birch leaf miner which attacks birch trees, but there are species which attack apple, oak, beech, elm, cherry, locust, and hawthorn. The damage is characterized by brownish, semi-translucent blotches on the leaves, representing the “mines” inside of which the immature larva are feeding. To differentiate leafminer damage from similar looking leaf spot diseases, look closely at the affected area of the leaf for the presence of the larva or its droppings inside the mined area.
Host Trees for Leafminer
Oak, Birch, Beech, Elm, Hawthorn, Holly, Locust.
Treatments for Leafminer
Learn More About Common Tree Pests & Treatments
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