DEPARTMENT OF AGRICULTURE
PESTICIDE AND PLANT PESTICIDE MANAGEMENT DIVISION
REGULATION NO. 627. CARE OF NURSERY STOCK IN SALES OUTLETS
(By authority conferred on the commission of agriculture by sections 9, 176, and 178
of Act No. 380 of the Public Acts of 1965, and Act No. 189 of the Public Acts of 1931,
as amended, being SS16.109, 16.276, 16.278, and 286.201 et seq. of the Michigan
R 285.627.1 Definitions.
Rule 1. As used in these rules:
(a) "Balled stock" means nursery stock removed from the growing site with a
portion of the root system intact in a ball of the soil in which the plant was grown, the
diameter and depth of such soil ball to be as specified in the publication entitled
"American Standards for Nursery Stock," dated February 1, 1973, which is published
by, and available from, the American Association of Nurserymen, 230 Southern
Building, Washington, D.C. 20005, at a cost of $2.00. The publication may also be
inspected at, or obtained from, the Michigan Department of Agriculture, Plant
Industry Division, Lewis Cass Building, Post Office Box 30017, Lansing, Michigan
48909; the cost, when obtained from the department, is $2.00.
(b) "Container-grown stock" means nursery stock grown in a container, with a root
system completely established in soil or other growing media.
(c) "Manufactured ball" means a bound ball of soil or other growing media in
which the roots of nursery stock have been placed with the intended purpose of
establishing a root system in the media.
(d) "Packaged nursery stock" means nursery stock prepared for merchandising
with the roots wrapped in a moisture-holding media, other than soil, with no intention
of establishing a root system in the media.
(e) "Potted stock" means nursery stock offered for sale with the root system in soil
and in a rigid or semi-rigid container in which the plant was not grown and
History: 1979 AC.
R 285.627.2 Storage and display conditions.
Rule 2. (1) Balled stock, container-grown stock, potted stock, and nursery stock
with manufactured balls shall be kept uniformly moist by surrounding or covering
the root area with nontoxic, moisture-holding materials, or by irrigation sufficient to
maintain the viability and vigor of the stock, and shall be kept under temperature and
light intensity conditions that permit normal growth. Balled stock and stock with
manufactured balls, displayed or stored on pavement or
impervious surface, shall be separated from that surface by at least a 4-inch layer of,