Registration, certification, approvals, and the supervision of
activities specified herein shall reside in the Department. Inspection and
testing procedures prescribed in these regulations may be made by Oregon State
University, the United States Department of Agriculture, or the Department, and
shall be conducted in a manner and at times determined to be suitable by the
Department. In the indexing procedures required in these regulations, the
substitution of other indicator plants may be approved by the Department if
found equally suitable. Indexing on a fewer number of indicator plants may also
be approved by the Department if the plant being tested is, itself, a good
indicator for a particular disease. The following inspection and testing
procedures shall control as applicable:
(1) Progeny Vines:
(a) The parent rootstock and topstock sources
of a progeny vine for which registration or certification shall be requested,
shall be index-tested on St. George, LN-33, Baca 22 A, and Carignane varieties
of grapevines. Chenopodium spp. may be used in lieu of Carignane
grapevine;
(b) Propagating wood to
produce the progeny vines for a foundation block shall be taken from the parent
rootstock and topstock sources in the same growing season that tissue is taken
from the parent sources for indexing. The progeny vines shall be visually
inspected at least twice each growing season prior to planting in a foundation
block.
(2) In a
Foundation Block: Plantings in a foundation block, or the vines thereof, shall
be visually inspected at least twice each growing season.
(3) In an Increase Block: Plantings in an
increase block, or the vines thereof, shall be visually inspected at least
twice each year prior to the removal of fruit, if any, from the
vines.
(4) In a Nursery Planting:
Plantings in a nursery, or the vines thereof, shall be visually inspected at
least twice each growing season and, in addition thereto, shall be inspected at
the time of digging. In order to be eligible for certification or approval as
registered stock, said nursery stock shall not remain in the nursery row for
more than two growing seasons.
(5)
In addition to the requirements of sections (1) to (5) of this rule additional
inspections or tests may be required in the event seasonal conditions or other
factors tend to obscure virus symptoms or make adequate information impossible,
or when virus infection is suspected or virus symptoms may be masked in a
particular variety.
