Solutions for the Growing World
INVASIVE WATCH
Block Logo w/NO DAS goes here
Shapes to right match color.
Multiflora
Rose Control
(Rosa multiflora)
Multiflora rose was introduced into this country from Japan in 1866 and has rapidly
spread through most of the United States. It is a thorny perennial shrub with arching
stems (canes); leaves are divided into five to eleven sharp toothed leaflets. This rose
produces clusters of showy, white to pink flowers from May into June. Multiflora rose is
extremely prolific, reproducing from root sprouts, seeds, and rooting from the tips of
arching stems that contact the ground. It is estimated that a plant may produce a million
seeds each year, which often remain viable in the soil for up to twenty years. Its tenacious
and seemingly unstoppable growth pattern is a problem in pastures, wildlife areas, park
and recreation areas, fences, forests, etc. For these reasons, multiflora rose is classified
as a noxious weed in 7 states and considered invasive/undesirable in 5 others.
Commitment
Complete eradication of multiflora rose is very difficult. Generally, no single treatment
will provide complete control, so annual follow-up treatments are required for 2 or more
years. The older the rose, the more difficult eradication will be, and the more follow-up
treatments will be required. The longer multiflora rose has been on a site, the greater the
number of seeds on the site. Soil disturbance enhances seed germination.
Recommendations for Control
Foliar applications:
Foliar applications can be made from spring leaf development through senescence
in the fall with flowering being the optimum application timing. Avoid application
within 9-12 months after mowing or when plants are growing rapidly and have a high
percentage of new growth.
Broadcast applications:
• 8-9 pints per acre of Capstone™ + 0.5% surfactant OR
• 3 - 3.3 ounces per acre of Opensight® + 0.5% surfactant OR
• 5-7 ounces of Milestone® per acre + 1-2 pints of Garlon® 4 Ultra per acre
Directed Spot Treatments* (volume per gallon of mix):
• 5 ounces Capstone + 0.5% surfactant OR
• 1/3 ounces (9.9 ml) Opensight + 0.5% surfactant OR
• 1/4 ounces (7.4 ml) Milestone + 2/3 ounces (19.5 ml)
of Garlon 4 Ultra + 0.5% surfactant
*Rates listed are based on an estimated application rate of 50 gallons of total solution (herbicide + water) per
acre. Low volume backpack application mix percentage rates will be higher.
Low volume basal bark treatments:
Where plants are sparse, a low volume basal bark application may be useful. Garlon
4 Ultra is mixed at 20 to 25% v/v in basal oil. The addition of Milestone at 1% to the
Garlon 4 Ultra basal application is a favorite treatment of many applicators. Numerous
commercially prepared basal oils are available. Pathfinder® II herbicide is a ready-touse product for basal bark treatments, containing the same active ingredient as in
Garlon 4 Ultra. Treat the target stem by applying the spray solution to the lower 12-15
inches of bark down to the ground line completely around the entire stem. Treat the
bark until it is wet, but not to the point of run-off.
INVASIVE WATCH: Autumn
Multiflora
and
Rose
Russian
Control
Olive
Soil treatments:
Spike® 20P is a surface applied soil-active herbicide for
the control of multiflora rose. Hand apply Spike 20P to multiple
stem clumps, spreading evenly beneath the canopy, at the rate
of 0.25 ounce of product (one pre-measured dose from cylinder
applicator) per plant (equivalent to 0.25 ounce per 25 sq ft).
One fourth of an ounce is about 100 Spike 20P pellets.
Always wear impervious gloves, such as a nitrile glove,
when making applications.
Cut surface treatments:
Use Capstone™ undiluted or Garlon® 3A mixed 50% with
water. When using water-based herbicides such as Capstone
or Garlon 3A, cut stumps should be treated immediately after
cutting. The cambium area next to the bark is the most vital area
to wet. Treat any exposed cambium around the stump, including
anywhere the bark has torn down the side of the stump.
Modified cut stump treatments:
To control re-sprouting, mix 20 - 30 gallons of Garlon 4 Ultra in
enough oil to make 100 gallons of spray mixture. Apply with a
backpack sprayer using low pressures and a solid cone or flat
fan nozzle. Spray the root collar area, sides of the stump, and
the outer portion of the cut surface, including the cambium,
until thoroughly wet, but not to the point of run-off. Spray
mixture concentration should vary with size and susceptibility
of species treated; use the higher rates on larger stumps.
Apply any time, including in winter months, except when snow
or water prevents spraying to the ground line. Mixing with
oil requires vigorous agitation to form an oil solution. Once a
solution is formed, it will stay stable. These treatments can be
made up to 2 weeks after being cut. Clear away debris such as
leaves from the root collar prior to making the treatment.
www.VegetationMgmt.com
Solutions for the Growing World
Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
Always read and follow label directions.
State restrictions on the sale and use of Capstone, Opensight, and Garlon 4 Ultra apply. When treating areas
in and around roadside or utility rights-of-way that are or will be grazed or planted to forage, important label
precautions apply regarding harvesting hay from treated sites, using manure from animals grazing on treated
areas or rotating the treated area to sensitive crops. See the product label for details. State restrictions on the
sale and use of Milestone VM Plus apply. Consult the label before purchase or use for full details. Milestone
is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a
product is registered for sale or use in your state
V01-000-226 (07/13) DAS 010-50657
®™
Multiflora Rose