28 May, 2015
Wheat and small grains we are at the flag leaf stage of tissue sampling. Corn and soybeans are the whole plant at this time. Be sure to submit a softball or double fist size of material. Do not ship in plastic lined containers or envelopes. Order supplies either on line or calling our office.

Spectrum Analytic Inc.
1087 Jamison Rd NW
Washington Court House, OH 43160-8748

Please note that our mailing address has changed