The Middlesex County office of Rutgers Cooperative Extension Service will celebrate Earth Day 4-7 p.m. April 22 at the EARTH Center in Davidson's Mill Pond Park, 42 Riva Ave., South Brunswick.

Families are encouraged to pack a picnic dinner and a blanket and enjoy an evening in the park. The event is intended to familiarize residents with the EARTH Center's theme of environmental stewardship and to encourage them to take action in their own backyards.

The event will feature tours of the EARTH Center's compost display area and rain garden, which filters and recharges groundwater. Guests will have the opportunity to ask questions of the county's Master Gardeners at the garden helpline questionand answer table. Representatives of 4-H Clubs will be on hand with activities for children. A limited amount of free tree seedlings will be available, and local environmental groups will be in attendance. Musical entertainment will be provided. The event is weather dependent; call 732-398- 5262 before 4 p.m. if there is a threat of rain.

For more information on extension programming, log on to www.co.middlesex. nj.us/extensionservices or call 732- 398-5262.