Ag in Action 2017
In compliance with Montana State Noxious
Weed Laws, the county weed supervisors will
help you identify potential noxious weeds -
and assist you with weed management plans.
The most effective method for managing
noxious weeds is to prevent their invasion.
You can help.
Leafy spurge is a perennial weed that spreads both by seed
and rhizomes. It is very aggressive and can establish quickly
if neglected. The plants begin to flower in June and continue
through July. A key identifying characteristic of leafy spurge
is the milky white substance flowing through the stems and
leaves. Leafy spurge can be difficult to manage because
of its extensive root system and may require an integrated
approach. Integrated approaches include utilizing bio-
controls, cultural methods, and herbicide treatments. These
may include sheep grazing, predatory bugs, preventative
management as well as proper herbicide applications. Hand
pulling is not effective because leafy spurge reproduces
prolifically through rhizomes (underground stems).
Spotted knapweed is a biennial or short-lived perennial weed
that spreads via seed. One plant is capable of producing one
million seeds and therefore knapweed is capable of spreading
quickly. The plants begin to flower in July and will continue
through September. A key identifying characteristic are
the black bracts located below the flower head. Spotted
knapweed releases toxins that kill surrounding vegetation
and reduce competition. The most effective way to manage
spotted knapweed is through proper herbicide treatments;
however, bio-controls are available and hand pulling can be
effective over a length of time.
For more info, contact your
Fergus County Weed District Office
Brady Cannon, Fergus County Weed Coordinatorfcweeds@co.fergus.mt.us
Houndstongue is a biennial plant that has been known to live
for longer than two years in some environments. It begins to
bloom in early June and continues through July. The key
identifying characteristics are the basal leaves that resemble
a hound’s tongue and the bolting stalk that produces pink and
purple flowers. Houndstongue is a prolific spreader because of
its velcro-like tear drop shaped seeds that attach to just about
anything. Hand pulling can be an effective management tool
for houndstongue because of its two year life cycle. It is very
important to pull skeletons from past years as well as actively
growing plants to effectively manage houndstongue. Herbicide
treatments are effective in areas where infestations are too thick
for hand pulling.
Fergus County Weed District will host a
plicator Training at the Eagle’s Club
April 26, 2017.
The workshop will cover a variety of topics
and provide 4 credits towards applicator licenses. In addi-
tion, Fergus County Weed District will host a
workshop focusing on the basics of weed management
for small landowners. This workshop is sponsored by
the Central Montana Education Center and will take
place Thursday, April 27, 2017. To register please con-
tact the Fergus County Weed District.