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The white apple leafhopper, rose leafhopper, and grape leafhopper suck leaf sap reducing plant vigor and sometimes spotting fruit with excrement (called “tar spots”). The flying adults can also be a nuisance to fruit pickers when present in high numbers in the late summer to early fall. The adults are wedge-shaped with wings meeting in a sharp peak over the back. Best control is achieved when leafhoppers are still in the immature stage (nymphs). Nymphs feed on the undersides of leaves. If a population is high, treat before older nymphs (larger nymphs with longer wing pads) are present.
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