Oregon Administrative Rules › Chapter 603 - DEPARTMENT OF AGRICULTURE › Division 51 - PRODUCE STANDARDS › Section 603-051-0857 - Requirements and Conditions for Certification

Current through Register Vol. 63, No. 7, July 1, 2024
Certification by the Department shall not imply or be construed
				as any warranty of the Department or their employees as to the condition of
				nursery stock. The following requirements and conditions shall be met in order
				to qualify for consideration of certification of nursery stock:
(1) The applicant for certification shall be
			 responsible for the selection of the location and the proper maintenance of all
			 plantings being grown. The applicant shall also be responsible for maintaining
			 the identity of all nursery stock. Any planting entered in this certification
			 program shall be kept in a thrifty growing condition and free of plant
			 pests.
(2) Trees may be registered
			 for certification as rootstock, interstock, and top-stock sources for the
			 propagation of Oregon Certified Nursery Stock when inspected, tested and found
			 to be discernably free from harmful virus and virus-like diseases of regulatory
			 concern and having varietal purity, in accordance with the procedures
			 prescribed in OAR 603-051-0855 to 603-051-0859.
(3) No budding, grafting, or top-working of
			 registered G2 and G3 trees in a scion-block, seed-block, or stool bed shall be
			 permitted. Use of a certified G2 and G3 nursery stock for scionwood shall only
			 be allowed upon receiving permission from the Department and shall be subject
			 to departmental supervision.
(4)
			 Any plant found to be infected by a virus or virus-like disease and officially
			 confirmed by the Department, or found to be off-type, or in root or foliar
			 contact with a confirmed infected plant shall be removed immediately from any
			 planting and destroyed after notification is rendered by the Department. For
			 scion blocks, if a positive plant is present the following growing season, all
			 plants growing within 30-feet of the infected plant within the same block will
			 not be certified. For stool beds, if a positive plant is present the following
			 growing season, all plants growing within 10-feet of the infected plant within
			 the same block will not be certified. The certification of these plants may be
			 regained if Departmentally-approved corrective action is taken.
(5) Prior to planting, all registered plant
			 growing areas and their contiguous border areas of not less than ten feet shall
			 be tested for the presence of soil-inhabiting nematodes known to transmit
			 viruses of concern to the Program. Growing areas found free of nematode vectors
			 will not require chemical fumigation. Growing areas found infested with
			 nematode vectors are required to be fumigated in accordance with the rates and
			 practices recommended by Oregon State University. The growing areas will then
			 be re-tested. Such tests and treatments shall be carried out under the
			 supervision of the Department.
(6)
			 Applicants shall be responsible for maintaining trueness to type of certified
			 G4 nursery stock produced from registered G2 and G3 plants. The applicant shall
			 develop a written program, in cooperation with the Department, so as to provide
			 for monitoring of each cultivar for trueness to type.
(7) A participating nursery must maintain the
			 following records for all registered G2 and G3 nursery stock in this program
			 for a minimum of four (4) years:
(a) Records
			 indicating the Latin name, variety or cultivar, rootstock, origin, date of
			 introduction of the G1 or G2 plant materials to the facility, date of
			 propagation in the registered G2 or G3 block, and field location including
			 nursery row and planting;
(b)
			 Records of sale and copies of all phytosanitary certificates issued;
(c) Maps of the facility or nursery
			 indicating the growing areas and a detailed inventory for the registered G2 and
			 G3 plants.