(a) Potatoes other than Prenuclear seed potatoes. The Department will inspect fields of potatoes at least twice during the growing season. Other inspections, which may include digging, may be made. A final inspection shall be made at shipping time for grade.
- (1) First field inspection will be made as early as possible to make accurate identification of diseases.
- (2) Second or later inspections will take place at blossom time and before the vines are killed.
- (3) Seed lots will be rejected if found to contain more than the following diseases:
- (4) Maximum percentages allowed for diseases other than those listed in paragraph (3) will be determined by the certification office after identification.
- (5) Ring rot, also referred to as Clavibacter michiganense subsp. sepedonicum (synonym: Corynebacterium sepedonicum), found at any time in bin or graded stock will be cause for rejection.
- (b) Prenuclear seed potatoes. If Erwinia caratovora pv. caratovora, or Erwinia caratovora pv. atroseptica, or Clavibacter michiganense subsp. sepedonicum (synonym: Corynebacterium sepedonicum), or potato spindle tuber viroid, or potato leafroll virus, or potato virus A, M, S, X or Y is detected in a seed lot for which Prenuclear certification is sought, that particular seed lot will be rejected. Detection of virus vectors in a seed lot for which Prenuclear certification is sought will be grounds for rejection of the entire lot.
Maximum Percent Allowed Disease G1 & G2 G3 G4-G8 Mosaic .25 .5 2 Leaf Roll .25 .5 1 Spindle Tuber .25 .5 1 Yellow Dwarf .25 .5 1 Total Virus including Mosaic, Leaf Roll, Spindle Tuber and Yellow Dwarf .50 1.0 3 Ring Rot .00 .00 .00
Authority
The provisions of this § 115.282 amended under The Pennsylvania Seed Act of 1965 (3 P. S. § § 285-1—285-11); and the act of April 11, 1929 (P. L. 488, No. 205) (3 P. S. § § 291—297); amended under 3 Pa.C.S. § § 7111 and 7117.
Source
The provisions of this § 115.282 amended February 29, 1980, effective March 1, 1980, 10 Pa.B. 911; amended April 6, 1990, effective April 7, 1990, 20 Pa.B. 1878; amended April 2, 1993, effective April 3, 1993, 23 Pa.B. 1558; amended May 22, 2009, effective June 22, 2009, 39 Pa.B. 2577. Immediately preceding text appears at serial pages (276762) to (276763).
Cross References
This section cited in 7 Pa. Code § 115.291 (relating to winter test).