Bacterial Ring Rot
 9. (1) Subject to subsection (2), where bacterial ring rot is found in potatoes, the owner or person in possession of the potatoes shall dispose of all potatoes on the premises in the manner set out in subsections (4) and (5), (a) where the bacterial ring rot is found on or before the 15th day of February, not later than the 15th day of March next following; and (b) where the bacterial ring rot is found after the 15th day of February, within two weeks of the finding of bacterial ring rot or before the 15th day of March, whichever is the later. (2) Subsection (1) does not apply to potatoes that are treated before the 15th day of February with maleic hydrazide and that after the treatment show no evidence of sprouting at any time. (3) Potatoes infected with bacterial ring rot may be disposed of for any purpose other than for seed. (4) Subject to subsection (5), where in disposing of potatoes infected with bacterial ring rot the potatoes are removed from the premises in bags or other containers, the bags or other containers shall be marked with the words “table potatoes”. (5) Potatoes infected with bacterial ring rot that are in containers not marked with the words “table potatoes” shall be, (a) used for processing purposes; (b) fed to livestock; (c) removed from the premises for the purpose of processing, feeding to livestock or destruction; or (d) destroyed so that the premises can be disinfected. (6) The owner or person in possession of premises on which potatoes infected with bacterial ring rot are found shall, after disposal of all potatoes, disinfect, (a) all warehouses, cellars, bins and other parts of the premises in which the potatoes were handled or stored; (b) all machinery, other equipment and tools that come into contact with the potatoes; (c) all parts of vehicles that were used in the transportation of potatoes and that came into contact with the potatoes; (d) all bags, crates and baskets used in handling or storing the potatoes; and (e) all potato planters and other equipment and tools used in the planting of the potato crop in which bacterial ring rot was found. (7) Except with the written permission of an inspector, disinfection under subsection (6) shall be made before any potatoes are brought upon the premises. (8) Disinfection under subsection (6) shall be made, (a) in the case of warehouses, cellars, bins and other parts of premises, and crates and baskets, by spraying thoroughly all surfaces with copper sulphate solution prepared by dissolving copper sulphate in water in the proportion of one pound of copper sulphate to ten gallons of water; (b) in the case of machinery, other equipment, tools and vehicles, by spraying thoroughly or drenching all exposed surfaces thereof with a solution of formalin prepared by mixing formalin with water in the proportion of one pint of formalin to thirty gallons of water; and (c) in the case of bags, by soaking them for at least two hours in the solution prescribed in clause (b). (9) No person shall use or permit to be used machinery, other equipment, tools or vehicles that have been in contact with potatoes infected with bacterial ring rot unless the machinery, other equipment, tools or vehicles have been disinfected. (10) Every person owning or occupying premises where bacterial ring rot is found in potatoes shall, upon the request of an inspector, report the manner of disposal of all potatoes from the premises and, where the potatoes have been disposed of to other persons, the names and addresses of the persons. (11) No person shall exhibit potatoes infected with bacterial ring rot at any agricultural fair or exhibition. (12) No person shall store seed-potatoes in any part of a warehouse or other place of storage where potatoes infected with bacterial ring rot were stored unless that part of the warehouse or other place of storage is disinfected before the seed-potatoes are stored. (13) No dealer shall store seed-potatoes in any warehouse or other place of storage commonly used for potato storage unless the entire space to be used for storage of the seed-potatoes is disinfected before the seed-potatoes are stored or is used only for the storage of seed-potatoes.  R.R.O. 1990, Reg. 924, s. 9. Black Knot