Current through Register Vol. 54, No. 44, November 2, 2024
(a)
Field conditions. The
previous crop shall be other than potatoes. Potatoes showing a stand of less
than 80% may be refused certification. When fields are rogued, the diseased
plants and tubers shall be removed from the field.
(b)
Greenhouse conditions.
The following requirements shall be met prior to the introduction of Prenuclear
seed potatoes to a greenhouse, and, if applicable, at all times that Prenuclear
potatoes are present in the greenhouse:
(1)
The greenhouse shall be cleaned and thoroughly disinfected.
(2) The interior of the greenhouse shall be
treated to kill insects.
(3) Weeds
shall be killed and removed from the interior of the greenhouse.
(4) Benches, floors, pots and tools shall be
sanitized.
(5) The growth medium
shall be sterilized.
(6) A foot dip
tray shall be situated for use at each entrance. The use of the foot dip tray
shall be required of all persons entering the greenhouse.
(7) An adequate amount of protective
outerwear shall be in place at each entrance, and use of the protective
outerwear shall be required of persons entering the greenhouse.
(8) Inspection, sampling and testing of
potato plants and potato plant materials shall be conducted prior to the
introduction of the plants or plant materials into the greenhouse. The plants
and plant materials shall be free of Erwinia caratovora pv. caratovora, Erwinia
caratovora pv. atroseptica, Clavibacter michiganense subsp. sepedonicum
(synonym: Corynebacterium sepedonicum), potato spindle tuber viroid, potato
leafroll virus and potato viruses A, M, S, X and Y.
(9) Access to the greenhouse shall be limited
to trained personnel and escorted visitors.
(10) Smoking is not allowed within the
greenhouse.
(11) Benches and
containers shall be labeled or tagged with variety and seed lot
information.
(12) Prior to entering
the greenhouse, and between work with different seed lots within the
greenhouse, persons shall wash, disinfect and rinse their hands.
(13) The greenhouse shall be free of holes,
cracks or other portals of entry for insects and debris.
(14) A dead-air space shall exist between the
outdoors and any entrance to the greenhouse.
(c)
Laboratory conditions.
In propagating Prenuclear seed potatoes, a laboratory shall use standard
aseptic microbiological techniques at all stages of plant growth in tissue
culture. The following additional requirements shall be met by the laboratory:
(1) Plant material in the certification
program shall be physically and procedurally isolated from plant materials of
unknown disease status.
(2) Media
which allow the growth of microorganisms shall be used routinely in the
propagation of plant material.
(3)
Containers of plant material shall be labeled to identify variety and
lot.
The provisions of this §115.272 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).
This section cited in 7 Pa. Code §
115.285 (relating to inspection and
testing of Prenuclear seed
potatoes).
