Oregon State University

Test Conversions

Conversions can save time and money. 

Crop and weed exams can be converted to SQ, UGS or Canada certificates in most cases. A crop and weed exam on Tall fescue can be converted to SQ, UGS or Canada certificate with no additional testing required. 

SQ can be converted to UGS certificates in most cases. A completed sod quality report on Tall fescue can be converted to an UGS certificate with no additional testing required. 

AOSA/EC to AOSA: Paperwork only

  • Ryegrass
  • Tall fescue
  • Rough bluegrass
  • Fine fescue (all)
  • Orchardgrass 

AOSA to AOSA/EC: Paperwork only 

  • Tall fescue
  • Kentucky bluegrass
  • Orchardgrass
  • Red and Chewings fescue (Sheep and Hard fescue require additional testing) 

CONVERSION WITH ADDITIONAL TESTING REQUIRED:

  • Ryegrass can be converted from AOSA to AOSA/EC with additional test of 10 g.
  • Kentucky bluegrass can be converted from AOSA/EC to AOSA with additional test of 5 g.
  • Rough bluegrass can be converted from AOSA to AOSA/EC with additional test of 0.5 g.
  • Sheep and Hard fescue can be converted from AOSA to AOSA/EC with an additional test of 5 g.

Contact Info

The OSU Seed Laboratory is an AOSA and ISTA member lab and is ISTA Accredited Laboratory US07.

3291 SW Campus Way
Corvallis, OR 97331
Phone: 541-737-4464
Fax: 541-737-2126
seedlab@oregonstate.edu

Hours: 8-5 Mon - Fri
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