Section 9. Land Requirements
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In all cases the previous crop history must be known on the field(s) used to produce any class of certified seed. The field(s) must not have grown another variety of the same crop for the length of time specified by the individual crop standards. Regardless of previous crops, at the time of planting, the field must be free of volunteer plants of the crop being produced. The area adjacent to the field should also be free of volunteer plants of the crop being produced. The field or any portion of the field certified must always have a definite boundary such as a fence, ditch, levee, road, or barren strip. Stakes alone will not be recognized as an adequate boundary unless these are steel fence posts or heavy wooden posts placed at 200-foot intervals and tall enough to be seen above the crop.
Fields to be planted for certification should be free from all prohibited noxious weeds as designated by the Director of California Department of Food and Agriculture (CDFA) and those weeds specifically named in CCIA’s individual crop standards.
9.1 Prohibited Noxious Weed Seed List. Seed or propagules of the following species of plants have been named prohibited noxious weed seed within the meaning of Section 52257 of the California Food and Agricultural Code:
Cucumis melo var. dudaim
(lens-podded hoary cress)
(heart-podded hoary cress)
(globe-podded hoary cress)
(whitestem distaff thistle)
9.2 Restricted Noxious Weed Seed List. The fields should also be free from those restricted noxious weeds apt to be difficult to separate from the crop seed. Seed or propagules of the following species of plants have been named restricted noxious weed seed by the Director of CDFA within the meaning of Section 52258 of the California Food and Agricultural Code:
(smooth distaff thistle)
(woolly distaff thistle)
(southern sandbur grass)
(coast sandbur grass)
(mat sandbur grass)
(Johnsongrass and other perennial Sorghum spp. including but not limited to Sorghum almum and perennial sweet sudangrass)
9.3 Isolation Requirements. Isolation requirements must be met as specified in the individual crop standards. If there is a dispute where two applicants cannot mutually agree on isolation involving their certified seed fields, the field planted last must provide the isolation or be denied certification. If it is not clear which field was planted first, the application first received by CCIA shall have priority.
Go to Section 10. Planting the Field
Updated: October 2011