MAINE

SUMMARY OF PLANT PROTECTION REGULATIONS

Updated November, 2002

Maine Department of Agriculture, Food and Rural Resources

Division of Plant Industry

28 State House Station

Augusta ME 04333

Phone: (207) 287-3891

Fax: (207) 287-7548

http://www.state.me.us/agriculture/pi/

Terry Bourgoin Director

Email: terry.bourgoin@state.me.us

Ann Gibbs State Horticulturist

Email: ann.gibbs@state.me.us

Richard Folsom Asst. Horticulturist

Email: richard.folsom@state.me.us

Grace O'Keefe Asst. Horticulturist

Email: grace.o'keefe@state.me.us

**NURSERY STOCK DEFINITION**

Any woody plants and herbaceous plants and all viable parts of these
plants, except cut flowers, cut Christmas trees, dried plants, field
crops and seeds.

**GENERAL SHIPPING REQUIREMENTS**

Any nursery stock shipped into Maine shall have an inspection
certificate, issued by the appropriate regulatory official of the state
of origin, attached to each package and the contents must be apparently
free of plant pests.

**NOXIOUS WEEDS**

> \[Note: The following list of noxious weeds is regulated by the
> Department of Environmental Protection (38 MRS section 410-N)\]

Eurasian water milfoil (*Myriophyllum spicatum*)

Variable-leaf water milfoil (*Myriophyllum heterophyllum*)

Parrot feather (*Myriophyllum aquaticum*)

Water chestnut (*Tapa natans*)

Hydrilla (*Hydrilla verticillata*)

Fanwort (*Cabomba caroliniana*)

Curly leaf pondweed (*Potamogeton crispus*)

European naiad (*Najas minor*)

Brazilian elodea (*Egeria densa*)

Frogbit (*Hydrocharis morsus-ranae*)

Yellow floating heart (*Nymphoides peltata*)

# QUARANTINES AND ADDITIONAL REQUIREMENTS

**HEMLOCK WOOLLY ADELGID QUARANTINE**

> PEST: Hemlock Woolly Adelgid (*Adelges tsugae*)

STATES REGULATED: AK, CA, OR, WA, and parts of: CT, DE, GA, MA, MD, NC,
NH, NJ, NY, PA, RI, SC, TN, VA, WV

> MATERIALS REGULATED: Hemlock seedlings, nursery stock, logs, lumber
> with bark, chips with bark and uncomposted bark
>
> RESTRICTIONS: All regulated materials are prohibited entry from
> regulated states unless, the hemlock logs, lumber and/or chips and
> bark are destined to a preapproved site. Hemlock seedlings and nursery
> stock from unregulated areas must be accompanied by a certificate.

**WHITE PINE BLISTER RUST QUARANTINE**

> PEST: The fungus *Cronartium ribicola* which causes white pine blister
> rust.
>
> STATES REGULATED: All
>
> MATERIALS REGULATED: Plants of *Ribes spp.*
>
> RESTRICTIONS: (1) *Ribes nigrum* is prohibited from all counties. (2)
> Possession and planting of all other species of *Ribes* is prohibited
> in the following counties: Androscoggin, Cumberland, Hancock,
> Kennebec, Knox, Lincoln, Sagadahoc, Waldo, York and parts of
> Aroostook, Franklin, Oxford, Penobscot, Piscataquis, Somerset and
> Washington.

## PINE SHOOT BEETLE QUARANTINE

PEST: Pine Shoot Beetle, *Tomicus piniperda*

STATES REGULATED: All currently under federal regulation for this pest.

MATERIALS REGULATED: Pinus species as regulated in the federal
quarantine.

> RESTRICTIONS: Stock must be in compliance with federal quarantine.
> (Maine has Oxford and Franklin counties currently under a
> federal-state internal quarantine.)

**POTATO QUARANTINE**

> PEST: Columbia Root Knot Nematode (*Meloidogyne chitwoodi*).

Bacterial ring rot (*Clavibacter michiganense pv. sepedonicum* or
*Corynebacterium sepedonicum*).

> STATES REGULATED: For Columbia Root Knot Nematode -- OR, WA, ID and
> parts of NV, CA, CO, UT, VA For Bacterial Ring Rot -- wherever it is
> present.

MATERIALS REGULATED: potato tubers, used containers, bags, machinery,
and implements.

RESTRICTIONS: Seed and processing potatoes from a regulated area cannot
enter the State of Maine. Tablestock potatoes can enter the state if
they have been washed, there is no evidence of internal defects caused
by the regulated pests, the potatoes have been treated with a sprout
inhibitor when shipped between February 1 and May 30 of each year, and
they are packed in consumer bags. Used machinery and equipment can enter
Maine only if it has been thoroughly washed and disinfested, and used
bags are prohibited entry.

**IMPORTED SEED POTATOES**

> No potato seed may be planted in the State of Maine in lots of one
> acre or more unless it meets the minimum disease standards of Maine
> certified seed as defined by the Commissioner of the Maine Department
> of Agriculture, Food and Rural Resources. Such standards are included
> in the Department's "Rules Governing Certification of Seed Potatoes in
> the State of Maine" (CMR 01-001, Chapter 252).