Invasive Plant Control Database

Welcome to the Invasive Plant Control Database

This website contains information on how to control many invasive plants common to the Midwestern United States. Information was collected from both scientific literature and expert opinions and summarized by the Midwest Invasive Plant Network (MIPN), in partnership with the Mark Renz lab from the University of Wisconsin-Madison. Methods that are uncommon, do not provide sufficient control, or lack information for determining effectiveness on target species are omitted. For each species, information was reviewed by four individuals, including two identified as experts on control of that species. Information is searchable by several fields to improve the user’s ability to find pertinent information. To view the search feature, you must first select an invasive plant. Additionally, users have the option of entering personal experiences with managing specific species (see “add new case studies” under search results). These case studies will be visible to all users once verified by MIPN staff.

We make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability with respect to the information or products on the website. Any reliance you place on such information is therefore strictly at your own risk. References to pesticide products on this website are for your convenience and are not an endorsement or guarantee of one product over another.

Step 1: Select Plant

Step 1: Select a species by choosing a common or scientific name from the list, or by typing a name in the search box.

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Step 2: Select Search Parameters

Step 2: Select search parameter(s) of interest. If no parameters are selected all control methods will be displayed. For effectiveness ratings, methods that meet or exceed the criteria selected will be displayed.

Under the Search Results you will find

  • Plant Identification information – information on species identification, including photographs and a current distribution map.
  • Ecological Threats – threats posed to natural ecosystems by this species.
  • Case Studies – Detailed success (and failures) on how to control specific species contributed by experienced personnel.
  • Non-chemical and chemical control methods that fit the selected search criteria. Please note you are responsible for using pesticides in accordance with the label directions and state and federal laws. Herbicide availability and registered uses vary from state to state. Contact your state department of agriculture for information on the correct use and licensing required for any pesticide application.

You may reset the search criteria or the species you have selected at any time by selecting the corresponding links on the right hand side of the page.

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Seasons:



Effectiveness (in season): 


Effectiveness (year after treatment): 
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Search Results

Tanacetum vulgare (common tansy)

Plant Identification information >
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Case Studies
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Non-Chemical controls
New (Type)Description
Type -
Mowing

User Type -
Novice

Effectiveness -
in season
year after treatment
Mow when plant has produced flower buds. Monitor population and mow again if plants resprout and produce flower buds. Mowing will suppress tansy growth, but is unlikely to control it. Do not mow if flowers or seeds are present, as this can facilitate spread of the species.
Type -
Prescribed burning

User Type -
Professional

Effectiveness -
in season
year after treatment
Spring burns can kill germinating seedlings and can suppress above ground growth of established plants depending on fire intensity. After the fire, established plants will quickly resprout and reinvade areas; this management method is not recommended unless integrated with other techniques. Fire may benefit other species well adapted to this management (e.g. prairie grasses), resulting in improved competition with tansy. A hand-held propane torch can be effective for treating seedlings.
Type -
Removal

User Type -
Novice

Effectiveness -
in season
year after treatment
Pulling or digging when soil conditions allow for the removal of rhizomes is an effective single plant control technique. This is most appropriate for seedlings and young plants. Rhizomes of older plants are difficult to remove and often fragment resulting in resprouting. If flowers or seeds are present, bag material and dispose of it in a landfill to avoid potential for seed spread. Gloves should be worn to prevent absorption of alkaloids.
Type -
Grazing

User Type -
Novice

Effectiveness -
in season
year after treatment
Sheep and goats can be trained to graze tansy, but often avoid it due to its bitter taste. Grazing can suppress tansy, but is unlikely to control it. Graze plants once in the spring when tansy is actively growing and then again when flower buds have formed. After grazing an infested site, quarantine animals for 14 days to allow for weed seeds to pass through them. When grazing, desirable grass species should be maintained at 60% cover to suppress tansy re-invasion.
Type -
Manipulation of the environment

User Type -
Novice

Effectiveness -
in season
year after treatment
Inter-seeding with competitive grasses can suppress tansy if grasses successfully establish. This method has been shown to be most effective when paired with other control measures.
Chemical controls
New (Type)IngredientsDirections
Type -
Foliar

User Type -
Professional

Effectiveness -
in season
year after treatment
Active Ingredient (A.I.):
imazapyr

Common product name:
Arsenal; Stalker (Aquatic: Habitat; Imazapyr 2sl)
Rate -
(broadcast) 32 fl oz/A (0.5 lb a.e./A)
(spot) 0.5 - 1.5% (0.01 - 0.03 lb a.e./gal)

Timing -
Apply from spring when plant is fully leafed out and actively growing to early bud stage.

Caution -
Use product labeled for aquatic use if potential exists for solution to contact surface waters. Applications can result in bare ground as imazapyr is not selective and can remain in the soil for several months to over a year depending on application rate. Overspray or drift to desirable plants should be avoided, as even minute quantities of the spray may cause severe injury to plants.
Type -
Foliar

User Type -
Professional

Effectiveness -
in season
year after treatment
Active Ingredient (A.I.):
chlorsulfuron

Common product name:
Telar
Rate -
(broadcast) 0.5 - 1.0 oz/A (0.4 - 0.75 oz a.i./A)
(spot) 0.04 oz/gal (0.03 oz a.i./gal)

Timing -
Apply from spring when plant is fully leafed out and actively growing to early bud stage.

Caution -
Do not apply directly to water or to areas where surface water is present. Can remain in the soil for months depending on application rate. Overspray or drift to desirable plants should be avoided, as even minute quantities of the spray may cause severe injury to plants.
Type -
Foliar

User Type -
Professional

Effectiveness -
in season
year after treatment
Active Ingredient (A.I.):
metsulfuron

Common product name:
Escort XP; Ally XP
Rate -
(broadcast) 0.3 - 0.5 oz/A (0.2 - 0.3 oz a.i./A)
(spot) 0.04 oz/gal (0.03 oz a.i./gal)

Timing -
Apply from spring when plant is fully leafed out and actively growing to early bud stage.

Caution -
Do not apply directly to water or to areas where surface water is present. Remains in the soil for months depending on application rate. Overspray or drift to desirable plants should be avoided as even minute quantities of the spray may cause severe injury to plants.
Type -
Foliar

User Type -
Professional

Effectiveness -
in season
year after treatment
Active Ingredient (A.I.):
dicamba

Common product name:
Banvel; Clarity
Rate -
(broadcast) 32 - 64 fl oz/A (1 - 2 lb a.e./A)
(spot) Equivalent to broadcast rates.

Timing -
Apply from spring when plant is fully leafed out and actively growing to early bud stage.

Caution -
Do not apply directly to water or to areas where surface water is present. Use of this chemical in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamination. Overspray or drift to desirable plants should be avoided, as even minute quantities of the spray may cause severe injury to plants. Rates > 16 fl oz/A (0.5 lb a.e./A) may cause stunting and discoloration of sensitive grasses, such as smooth brome.
Type -
Foliar

User Type -
Novice

Effectiveness -
in season
year after treatment
Active Ingredient (A.I.):
glyphosate

Common product name:
Roundup Pro; many others (Aquatic: Rodeo; AquaNeat)
Rate -
(broadcast) 2 - 2.5 lb a.e./A
(spot) For a 3 lb a.e./gal product. 1 - 2% (0.03 - 0.06 lb a.e./gal)

Timing -
Apply from spring when plant is fully leafed out and actively growing to early bud stage.

Caution -
Use product labeled for aquatic use if potential exists for solution to contact surface waters. Application can result in bare ground as glyphosate is not selective. Overspray or drift to desirable plants should be avoided, as even minute quantities of the spray may cause severe injury to plants.
Type -
Foliar

User Type -
Professional

Effectiveness -
in season
year after treatment
Active Ingredient (A.I.):
picloram

Common product name:
Tordon K; Trooper 22K
Rate -
(broadcast) 32 - 64 fl oz/A (0.5 - 1 lb a.e./A)
(spot) Equivalent to broadcast rates.

Timing -
Apply from spring when plant is fully leafed out and actively growing to early bud stage.

Caution -
Do not apply directly to water or to areas where surface water is present. Use of this chemical in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamination. Remains in the soil for over one year depending on application rate and has the potential to contaminate surface runoff water during this timeframe. Maintenance of a vegetative buffer strip is recommended between the areas picloram is applied and surface water features. Overspray or drift to desirable plants should be avoided as even minute quantities of the spray may cause severe injury to plants. Do not compost treated plants as herbicide can persist through composting process.
Type -
Foliar

User Type -
Novice

Effectiveness -
in season
year after treatment
Active Ingredient (A.I.):
2,4-D

Common product name:
Many (Aquatic: DMA 4 IVM; 2,4-D Amine 4)
Rate -
(broadcast) 1 - 2 lb a.e./A
(spot) For a 3.8 lb a.e./gal product. 1% (0.04 lb a.e./gal)

Timing -
Apply from spring when plant is fully leafed out and actively growing to early bud stage.

Caution -
Use aquatically labeled product if potential exists for solution to contact surface water. Use of this chemical in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamination. Overspray or drift to desirable plants should be avoided, as even minute quantities of the spray may cause severe injury to plants.