16-302-400  <<  16-302-410 >>   16-302-415

WAC 16-302-410

Standards for sod quality seed.

(1) Except for ryegrass sod quality seed, seed standards for sod quality grass seed are as follows:
Variety
Minimum % Pure
Minimum % Germination
Maximum% Other Crops (a)
Maximum% Weeds (b)
Kentucky Bluegrass
97
80
0.10
0.02
Red Fescue
98
90
0.10
0.02
Chewings Fescue
98
90
0.10
0.02
Tall Fescue
98
85
0.10
0.02
(a)
Must be free of ryegrass, orchardgrass, timothy, Agrostis sp., black medic, Poa trivialis, brome, reed canarygrass, tall fescue, clover, and meadow foxtail. Maximum allowable Canada bluegrass 0.02%. When the base sample is one of these kinds, the species will not be considered a contaminant (i.e., tall fescue in tall fescue).
(b)
Must be free of Big, Canby and Sandberg bluegrass, dock, chickweed, crabgrass, plantain, short-awn foxtail, annual bluegrass, velvetgrass, Vulpia sp., and noxious weed seeds as listed under WAC 16-302-100 and 16-302-105.
(2) Seed standards for sod quality ryegrass seed are as follows:
Variety
Minimum% Pure
Germination
% (d)
Other Crops
% (a)
Maximum
% Weeds
(c)
Ryegrass (b)
98
90
0.10
0.02
(a)
Must be free of black medic, orchardgrass, timothy, Agrostis sp., Poa trivialis, brome, reed canarygrass, tall fescue, clover and meadow foxtail. Maximum allowable Canada bluegrass 0.02%.
(b)
Maximum fluorescence levels as determined by breeder or variety owner.
(c)
Must be free of Big, Canby and Sandberg bluegrass, dock, chickweed, crabgrass, plantain, annual bluegrass, velvetgrass, Vulpia sp., short-awn foxtail, and noxious weed seeds as listed under WAC 16-302-100 and 16-302-105. An additional 0.07% of weedy Bromus spp. will be allowed.
(d)
85% minimum germination allowed on ryegrass varieties as designated by the breeder or variety owner. See list maintained by the seed program.
(3) A sod seed analysis certificate is the basis of determining if a lot meets sod quality standards. This certificate is issued by the certifying agency and represents a purity analysis, a twenty-five gram noxious all weed all crop exam and a germination test, except a 50-gram noxious all weed all crop exam is required for fescues and ryegrass.
(4) In addition to a seed certification tag, seed meeting sod quality certified seed standards will be tagged with a special "sod quality seed" tag.
[Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3), and chapter 34.05 RCW. WSR 14-20-050, § 16-302-410, filed 9/25/14, effective 10/26/14. Statutory Authority: RCW 15.49.310 and chapter 34.05 RCW. WSR 06-15-137, § 16-302-410, filed 7/19/06, effective 8/19/06. Statutory Authority: Chapters 15.49 and 34.05 RCW. WSR 03-18-072, § 16-302-410, filed 8/29/03, effective 9/29/03; WSR 02-12-060, § 16-302-410, filed 5/30/02, effective 6/30/02. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3) and chapter 17.24 RCW. WSR 00-24-077, § 16-302-410, filed 12/4/00, effective 1/4/01.]
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