Cornell's viticulture extension programs draw on the resources of research programs in viticulture, grape breeding, plant pathology, entomology, and applied economics and management to deliver research-based information supporting profitability and growth of vineyards and wineries across New York State.

One statewide and four regional viticulture extension programs develop educational programs and communicate with the industry through electronic and print newsletters, conferences, field meetings, and applied research projects in commercial vineyards.

The Finger Lakes Grape Program, based at Cornell Cooperative Extension of Yates County, in Penn Yan, New York, covers a five-county area in the Finger Lakes, encompassing 9,000 acres of over 30 varieties of grapes and over 100 wineries.

The Lake Erie Regional Grape Program is a joint extension program of Cornell and Penn State University. Based at the new Cornell Lake Erie Research and Extension Laboratory in Portland, NY, the program covers three western New York counties and Erie County in Pennsylvania. The region produces 30,000 acres of grapes, 95% of which are Concord and Niagara for juice production. The region also has a developing small winery sector, with 21 wineries on the Lake Erie shore, and an additional 14 in Niagara County.

The Long Island Grape Extension Program, housed at the Long Island Horticultural Research and Extension Center in Riverhead, NY provides research and extension for the 2,500 acres of V. vinifera grapes and 30 wineries located at the eastern end of Long Island.

The Hudson Valley Regional Fruit Program, housed at CCE of Columbia County, provides extension programs for five counties in the Lower Hudson Valley, with 200 acres of grape production and 25 wineries.

The Statewide Viticulture Extension Program provides research-based extension information supporting profitable grape and wine production for a statewide audience.