The Martha’s Vineyard Agricultural Society’s annual Agricultural Fair poster contest is now underway.

Posters must be 18 x 24 inches and include the words “Martha’s Vineyard Agricultural Society,” the dates August 16, 17, 18, 19 and the year 2012.

Entries should be mailed to P.O. Box 73, West Tisbury, MA 02575 by April 1. Questions should be addressed to fair manager Eleanor Neubert at 508-693-4343.