Species in the genus, Erythroneura , feed on sycamore leaves, but also on apple, grape and willow. The aster or six-spotted leafhopper , Macrosteles quadrilineatus Forbes, feeds on vegetables and annual flowers and spreads the aster yellows virus to woody plants like periwinkle and Thunbergia species. Nymphs and adults feed on the underside of leaves. Some leafhoppers are readily attracted to lights. Whitish cast skins from developing nymphs are commonly associated with an infestation.
Injured leaves can fall prematurely.
Some species cause terminal growth of injured plants to become curled and stunted. Heavily injured plant parts or plants can die. Egg-laying habits can also cause some plant injury. For additional information, contact your local Texas extension service agent, or search for other state extension service offices.