| New (Type) | Ingredients | Directions |
Type -
Pre-emergence
User Type -
Professional
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
tebuthiuron
Common product name:
Spike 20P; Tebuthiuron 20 P
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Rate -
(broadcast) 2.5 - 3.6 lb/A (2 - 3 lb a.i./A)
(spot) 0.009 lb/sq ft (0.006 lb a.i./sq ft)
Timing -
Apply during late winter or early spring when soil is not frozen. Apply to ground infested with target species in bands 4-10' wide spaced 4- 0' apart. Width and spacing will depend on the area and species to be treated.
Remarks -
Tebuthiuron is also available as a liquid formulation, Spike 80DF. This formulation is applied in a banded spray or as a spot treatment
Caution -
Do not apply directly to water or to areas where surface water is present. Applications can result in bare ground as tebuthiuron is not selective and can remain in the soil for several years depending on application rate. Use of this chemical in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamination. In areas fitting this description Spike can be used at rates as low as 2.5 lb/A (0.5 lb a.i./A), but partial control should be expected. Any plant with a root system that intercepts the area treated with this herbicide can be damaged or killed. Do not apply more than 20 lb/A (4 lb a.i./A) a year. Do not apply this product more than once a year.
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Type -
Foliar
User Type -
Novice
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
2,4-D
Common product name:
Many (Aquatic: DMA 4 IVM; 2,4-D Amine 4)
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Rate -
(broadcast) 2 - 2.5 lb a.e./A
(spot) 4% (0.11 lb a.e./gal)
Timing -
For best results cut twice (in spring when it reaches 3', then again when plant flowers), then spray fall regrowth when it reaches 3'.
Remarks -
Spring or summer applications of this herbicide are not effective in controlling this plant and this herbicide should only be applied in the fall to regrowth.
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.
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Type -
Foliar
User Type -
Professional
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
aminopyralid
Common product name:
Milestone
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Rate -
(broadcast) 7 - 14 fl oz/A (0.08 - 0.11 lb a.e./A)
(spot) Equivalent to broadcast rates.
Timing -
For best results cut twice (in spring when it reaches 3', then again when plant flowers), then spray fall regrowth when it reaches 3'.
Remarks -
14 fl oz/A can be used as long as less than half of the area is treated. Depending on the volume of solution applied per acre, typical mixtures for spot treatments are 8-16 mL Milestone per gallon of water.
Caution -
Do not apply directly to water or to areas where surface water is present. Remains in soil for up to one 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. Do not compost treated plants as herbicide can persist through composting process.
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Type -
Foliar
User Type -
Novice
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
glyphosate
Common product name:
Roundup Pro; many others (Aquatic: Rodeo; AquaNeat)
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Rate -
(broadcast) 3 - 8 lb a.e./A
(spot) For a 3 lb a.e./gal product. 4 - 8% (0.12 - 0.24 lb a.e./gal)
Timing -
For best results cut twice (in spring when it reaches 3', then again when plant flowers), then spray fall regrowth when it reaches 3'. Cut again 30 days after spraying for increased effectiveness.
Caution -
Use product labeled for aquatic use if potential exists for solution to contact surface waters. Applications 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.
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Type -
Foliar
User Type -
Professional
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
imazapyr
Common product name:
Arsenal; Stalker (Aquatic: Habitat; Imazapyr 2sl)
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Rate -
(broadcast) 48 - 64 fl oz/A (0.75 - 1 a.e./A)
(spot) 0.5 - 1% (0.01 - 0.02 lb a.e./gal)
Timing -
For best results cut twice (in spring when it reaches 3', then again when plant flowers), then spray fall regrowth when it reaches 3'.
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.
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Type -
Foliar
User Type -
Novice
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
triclopyr
Common product name:
Garlon 4; Element 4 (Aquatic: Garlon 3A; Element 3A)
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Rate -
(broadcast) 64 - 128 fl oz/A (2 - 4 lb a.e./A)
(spot) 1.5 - 2.25% (0.06 - 0.09 lb a.e./gal)
Timing -
For best results cut twice (in spring when it reaches 3', then again when plant flowers), then spray fall regrowth when it reaches 3'.
Remarks -
Spring or summer application of this herbicide are not effective in controlling this plant and applications should only be made in the fall.
Caution -
Use product labeled for aquatic use if potential exists for solution to contact surface waters. 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.
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Type -
Cut stump
User Type -
Novice
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
glyphosate
Common product name:
Roundup Pro; many others (Aquatic: Rodeo; AquaNeat)
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Rate -
(spot) For a 3 lb a.e./gal product. 20 - 25% (0.6 - 0.75 lb a.e./gal)
Timing -
Apply any time of year when plant is actively growing, although spring applications will likely require retreatment. Wait for 3' of regrowth before retreating.
Remarks -
Applications can also be injected directly into the stem. Inject 2-5mL (0.002-0.005 lb a.e.) between ground and the top of the second basal joint (node) from the ground.
Caution -
Use product labeled for aquatic use if potential exists for solution to contact surface waters. Applications 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.
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Type -
Cut stump
User Type -
Novice
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
triclopyr
Common product name:
Garlon 4; Element 4 (Aquatic: Garlon 3A; Element 3A)
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Rate -
(spot) 20 - 25% in oil (0.8 - 1 lb a.e./ gal)
Timing -
Apply any time of year when plant is actively growing, although spring applications will likely require retreatment. Wait for 3' of regrowth before retreating.
Remarks -
Applications can also be injected directly into the stem. Inject 1mL of a 50% (0.0004 lb a.e.) solution or 0.5mL (0.0004 lb a.e.) of an undiluted solution between ground and the top of the second basal joint (node) from the ground. Products containing this active ingredient can have different instructions for mixing. Labels will recommend mixing the product in a water or oil based carrier (e.g. basal bark oil). Consult the label to determine the appropriate carrier.
Caution -
Use product labeled for aquatic use if potential exists for solution to contact surface waters. 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.
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Type -
Cut stump
User Type -
Novice
Effectiveness -
in season
year after treatment
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Active Ingredient (A.I.):
triclopyr + 2,4-D
Common product name:
Crossbow; Chaser
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Rate -
(spot) 4% in oil (triclopyr: 0.04 lb a.e./gal + 2,4-D: 0.08 lb a.e./gal)
Timing -
Apply any time of year when plant is actively growing, although spring applications will likely require retreatment. Wait for 3' of regrowth before retreating.
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.
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