ATCP 156.10(6)(c) (c) Within an individual sample selected under sub. (5) from a graded lot:

ATCP 156.10(6)(c)1. 1. The rate of sprout damage may not exceed the applicable sprout damage tolerance specified in s. ATCP 156.12 or 156.13.

ATCP 156.10(6)(c)2. 2. There may be no more than one off-size potato and one defective potato.

ATCP 156.10(6)(d) (d) Potatoes damaged by freezing, soft rot or wet breakdown may not occur, at more than 3 times the applicable tolerance specified in s. ATCP 156.12 or 156.13, in more than one-tenth of the samples selected under sub. (5) from a graded lot.

ATCP 156.10 History History: CR 06-085: cr. Register April 2007 No. 616, eff. 5-1-07.

ATCP 156.11 ATCP 156.11 Defects.

ATCP 156.11(1) (1) External defects. External defects in a certified seed potato include the following:

ATCP 156.11(1)(a) (a) Deep air cracks that penetrate beyond the vascular ring.

ATCP 156.11(1)(b) (b) Shallow air cracks that materially detract from the appearance of the potato.

ATCP 156.11(1)(c) (c) Second growth or growth cracks that materially detract from the appearance of the potato.

ATCP 156.11(1)(d) (d) Brown or dark skin discoloration that materially detracts from the appearance of the potato.

ATCP 156.11(1)(e) (e) Shriveling, sponginess or flabbiness, except minor shriveling.

ATCP 156.11(1)(f) (f) A sprout over one inch long.

ATCP 156.11(1)(g) (g) One or more scabs that together cover more than 5% of the potato surface. Scabs may include pitted scabs.

ATCP 156.11(1)(h) (h) Pitted scab that causes a loss of more than 5% of the weight of the potato.

ATCP 156.11(1)(i) (i) Rhizoctonia that materially detracts from the appearance of the potato.

ATCP 156.11(1)(j) (j) Wireworm or grass damage that includes any of the following:

ATCP 156.11(1)(j)1. 1. In a potato that is at approximately 2½ inches wide or weighs approximately 6 ounces, a hole more than ¾ inch long or multiple holes with an aggregate length of more than 1¼ inch.

ATCP 156.11(1)(j)2. 2. Proportionately smaller or larger holes in a smaller or larger potato.

ATCP 156.11(1)(k) (k) A more than slight amount of dirt or foreign matter adhering to the potato, or present in the sample of potatoes.

ATCP 156.11(2) (2) Internal defects. Internal defects in a certified seed potato include the following:

ATCP 156.11(2)(a) (a) Ingrown sprouts, if removal causes a loss of more than 5% of the weight of the potato.

ATCP 156.11(2)(b) (b) Internal discoloration, occurring entirely within the vascular ring, which includes any of the following:

ATCP 156.11(2)(b)1. 1. In a potato that is at approximately 2½ inches wide or weighs approximately 6 ounces, the equivalent of 3 scattered light brown spots 1/8 inch in diameter.

ATCP 156.11(2)(b)2. 2. A proportionately smaller or larger number or size of spots in a smaller or larger potato.

ATCP 156.11(2)(c) (c) Internal discoloration located or extending outside of the vascular ring, if removal causes a loss of more than 5% of the weight of the potato.

ATCP 156.11(3) (3) Defects constituting serious damage. The following defects constitute serious damage:

ATCP 156.11(3)(a) (a) Caked dirt covering more than ½ of the potato.

ATCP 156.11(3)(b) (b) Brown or dark skin discoloration that seriously detracts from the appearance of the potato.