DEERFIELD TWP. — Cumberland County Master Gardeners training/accreditation courses begin in January and continue until the end of May. Each three-hour course is open to the public for a fee of $20 which includes intensive topic training, handouts, and refreshments. The January courses are as follows: Jan. 8 - Diagnosing Plant Diseases-Jim Johnson Jan. 15 - Soil & Fertilizer-Bill Bamka Jan. 22 - Composting-Viola Carson Jan. 29 - Animals: Friend & Foe-Viola Carson & Dr. Brooke Maslo All classes run from 9 a.m until noon and are held at Rutgers Cooperative Extension Education Center, 291 Morton Ave., Rosenhayn. For further information or to register for a session, call 451-2800, ext. 4.