leafhopper

1907, Altus Lacy Quaintance, Cornelius Lott Shear, Insect and Fungous Enemies of the Grape East of the Rocky Mountains, Farmers' Bulletin 284, US Department of Agriculture, page 19, Throughout the United States and Canada, wherever the grape is grown, this small leaf-hopper (Typhlocyba comes Say) will almost invariably be found in greater or less numbers infesting the lower surface of the leaf, where it feeds and breeds, increasing in numbers as the season progresses, until by late summer and fall the vines are often literally swarming with it.

1933, Eubanks Carsner, Curly-top resistance in sugar beets and tests of the resistant variety U. S. No. 1, Technical Bulletin 360, US Department of Agriculture, page 3, Attacks on the leaf hoppers with insecticides and mechanical means have, in the past, been conducted mainly in sugar-beet fields.