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NOXIOUS
WEED CONTROL AUTHORITY
3015 Menke Circle
Omaha, NE. 68134
(402) 444-4583
PURPLE LOOSESTRIFE
CONTROL METHODS
Douglas County Noxious Weed Control provides this information
as a courtesy (disclaimer) to those
who are interested in controlling noxious weeds. We recommend a combination of
two methods below (an
integrated approach) to effectively control an infestation. If you prefer
to have a Commercial
Company take care of your Control needs, you can visit our Contractor's
Page or use any
Contractor found in the Yellow Pages. Equipment may also be available
at a local rental store. .
Remember, no matter what method(s) is used, ALL
AREAS of the property must be
maintained. These areas include around fences, poles, mounds, holes, hillsides
(no matter how steep), and any other that may require specialized control.
CHEMICAL APPLICATION
Note: The below information is derived from the Nebraska
Cooperative Extension EC 06-130-D
(HERBICIDE USE IN NEBRASKA). Please consult the individual pesticide label
for proper application rates.
Always read and follow label directions and wear
the proper Personal Protective Equipment
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HERBICIDE*
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TIMING
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REMARKS
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RODEO
ROUNDUP ULTRA |
Apply to plants with active growth in bloom stage
or later
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Use RODEO in or near water sources. Add appropriate
surfactant to RODEO
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* A property owner is not limited to these
Herbicides only. Other Herbicides may be available, please consult
the individual herbicide label for proper application directions. Herbicides
can be found at coops, area nurseries,
retail stores, farm stores, and other landscape centers. For more information
on Herbicides and their uses please
check with the Douglas
County Extension Service.
MECHANICAL CONTROL
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METHOD
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TIMING
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REMARKS
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DIGGING MOWING (NOT RECOMMENDED) |
Any plant stage before setting seeds.
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Remove as much of the Root system and other plant
parts as possible. Plant will regenerate by root parts.
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BIOLOGICAL CONTROL
The use of natural enemies for the control of purple loosestrife
is currently being studied in Nebraska.
Douglas County has made one release of insects and is planning another
release for 2002.
These agents work slowly and results may not be seen for
several years. They should be used as a tool and should be part of an
integrated
program and not relied on to completely control any noxious weed.
They shall be as effective as the use of herbicides and shall be approved
by the
Douglas County Weed Control before being used.
CONTROL METHOD RECOMMENDATION
Note: Improving the conditions and competition of desirable
grasses and vegetation
is the best defense against noxious weeds. Avoiding waste areas, overgrazing,
disturbed
ground and proper care of existing vegetation, will aid in keeping noxious
weeds away.
KEY: Be PERSISTANT! A Perennial requires multiple
years of control.
SMALL INFESTATIONS
(less than 1 Acre)
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SPRING
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SUMMER
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FALL
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Chemical/Digging
actively growing |
Chemical/Digging
Flower Stage |
Chemical/Digging
when actively growing Sept - Oct |
LARGE INFESTATIONS
(greater than 1 Acre)
PLEASE CONTACT THE DOUGLAS COUNTY WEED
CONTROL FOR RECOMMENDATION.