Michigan Administrative Code › Department - Agriculture and Rural Development › Pesticide and Plant Pesticide Management Division › RegulationNo 623 - Field Seed Certification › Part 2 - FIELD CROP STANDARDS › Section R. 285.623.210 - Rape

Current through Vol. 24-12, July 15, 2024
Rule 210.
(1) Rape
				  shall be planted on land on which the same crop has not been previously grown
				  for a minimum of 4 years for producing foundation seed and 3 years for
				  producing certified seed.
(2)
				  Fields that produce foundation seed shall have a minimum isolation distance of
				  1,320 feet from fields of any other variety of the same kind with similar
				  erucic acid levels or from a noncertified field of the same variety.
(3) Fields that produce certified seed shall
				  have a minimum isolation distance of 660 feet from fields of any other variety
				  of the same kind with similar erucic acid levels or from a noncertified field
				  of the same variety.
(4) Fields
				  that produce foundation or certified low erucic acid types of rape seed shall
				  have a minimum isolation distance of 2 miles from high erucic acid types.
				  Likewise, fields that produce foundation or certified high erucic acid types of
				  rape seed shall have a minimum isolation distance of 2 miles from low erucic
				  acid types. Low erucic acid types of rape seed shall have an erucic acid level
				  of 2.0% or less. The required isolation distance between fields of different
				  classes of the same variety shall be 10 feet.
(5) Field inspections shall be made when the
				  crop is in the flower stage and at any other time as deemed necessary by the
				  seed-certifying agency.
(6) Field
				  standards for rape seed are as follows:
Maximum Each Class
Factor
Foundation
Certified
Other varieties or off-types
0.05%
0.2%
Inseparable other crops,
Non-brassicaceae
1 plant per acre
5 plants per acre
Inseparable other,
Brassicaceae spp.
None
1 plant per acre
Blackleg, Leptosphaeria maculans
.001%
.005%
(7) Seed standards for rape seed are as
				  follows:
Classes of Seed
Factor
Foundation
Certified
Pure seed (minimum)
99.0%
99.0%
Inert matter (maximum)
1.0%
1.0%
Prohibited noxious weeds
none
none
Restricted noxious weeds and other,
Brassicaceae spp. (maximum)
1 per pound
5 per pound
Other weeds (maximum)
5 per pound
15 per pound
Total other crop seed (maximum)
0.05%
0.25%
Other varieties and off-types (maximum)
0.05%
0.25%
Germination (minimum)
85.0%
(8) All foundation and certified rape seed
				  that is sold in Michigan is required to be tested by a method which is approved
				  by the director of the department of agriculture and which is found to be free
				  of virulent strains of blackleg, Leptosphaeria maculans. These test results
				  shall be stated on the seed label.
(9) The certifying agency shall have the
				  authority to request laboratory results from the producer for each lot of seed
				  that is eligible for certification. These results shall be from an approved
				  laboratory and shall indicate the erucic acid and glucosinolate content of the
				  seed.
(10) All foundation and
				  certified rape seed that is sold in Michigan shall be treated with an approved
				  fungicide which is effective against seed-borne blackleg, Leptosphaeria
				  maculans.