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Seed Regulatory Program

​​​​​​​​The Oregon Department of Agriculture issues quality tags for seed lots that meet quality standards. Endophyte tags are issued for lots that meet tolerance standards for endophyte fungi as described in OAR 603-056-0170​. Seed lots meeting sod quality standards established in OAR 603-056-0145 may be labeled as "Oregon Sod Quality Seed" using tags issued by the department. 

​​​​​Endophyte Tags ​

Sod Quality Tags


Kind​​​

Minimum purity

Minimum germination

Maximum * 1 other crop

Maximum * 5 weed

Perennial ryegrass

98 %

90 %

0.10 % *2

0.02 %

Marion Kentucky bluegrass

95 %

80 %

0.10 % *3

0.02 %

Other varieties of bluegrass

97 %

80 %

0.10 % *3

0.02 %

Red fescue

98 %

90 %

0.10 %

0.02 %

Chewings fescue

98 %

90 %

0.10 %

0.02 %

Hard fescue

98 %

85 %​

0.10 %

0.02 %

Sheep fescue

98 %

85 %

0.10 %

0.02%

Blue fescue

98 %

85 %

0.10 %

0.02 %

Bentgrass

98 %

85 %

0.10 % *4

0.10 %

Tall fescue

98.5 %

85 %

0.10 %

0.02 %

  1. Must be free of ryegrass, orchardgrass, timothy, bentgrass, big bluegrass, poa trivialis, smooth bromegrass, reed canary grass, tall fescue, and clover. When the base sample is one of these kinds, the species will not be considered a contaminant (e.g. ryegrass in ryegrass).
  2. Certification fluorescence levels and appropriate calculation will be applied when determining levels of other crop.
  3. Maximum other varieties of Kentucky bluegrass allowed is 2%. Maximum allowed Canada bluegrass is 0.02%.
  4. A 500-seed count will be used to determine other species of Agrostis.
  5. Must be free of: dock, Rumex spp.; chickweed, Cerastium spp. or Stelloria media; crabgrass, Digitaria spp.; plantain, Plantago spp.; black medic, Medicago lupulina; annual bluegrass, Poa annua; velvetgrass, Holcus spp.; downy brome, Bromus tectorum, and other all-state noxious weed seeds, except Hawaii.​
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​​​Contact 

Steve Finch
Phone: 503-986-4641
Main Office
Phone: 503-986-4620

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