Laserfiche WebLink
Integrated Weed Management Recommendations <br /> Preventing the spread of this plant in Colorado is crucial since it is known to exist only in a few <br /> locations,mostly In the Denver Metropolitan area.Monitoring your land for infestations,especially <br /> lands near water and downstream of known sites, can significantly aid in detecting the species <br /> early and eradicating it quickly. Herbicide timing is important in controlling this species. ollow <br /> timing recommendations closely. <br /> CULTURAL ' <br /> Prevent the establishment of new infestations by minimizing <br /> disturbance and seed dispersal, eliminating seed production, <br /> and maintaining healthy native communities. Survey regularly <br /> for noxious weeds on your property. Be sure to completely <br /> A" remove any seedlings or newly established plants by hand <br /> pulling the plants as early as possible in their development. <br /> 0 <br /> BIOLO ICAL <br /> Biocontrol agents are not included in the prescribed management <br /> plans by the State. Eradication is the management objective for all <br /> List A's. No biocontrol agents for hairy willow-herb is available. For <br /> more information on the use of biocontrol agents to control weeds <br /> in Colorado, please contact the Palisade Insectary of the Colorado ' <br /> " Department of Agriculture at 970-464-7916. <br /> O � MECHANICAL <br /> O L Small infestations can be dug by hand and should be performed <br /> prior to seed set. It is very important to remove the entire rootstalk <br /> 0 and any existing rhizomes of the plant to avoid regrowth from <br /> root fragments.Composting of this species is not advised,and <br /> vegetation should be destroyed on site or contained in heavy-duty <br /> trash bags and disposed of in a landfill. <br /> OV.King County,YBshingt4p, pious Weed Program <br /> 1 <br /> :- CHEMICAL <br /> NOTE: The following are recommendations for herbicides that can <br /> Ezzl <br /> be applied along riparian and wetland areas to treat hairy willow- <br /> herb. Rates are approximate and based on smaller infestation, ' <br /> spot-spraying techniques. Please read label for exact rates.Always <br /> read,understand,and follow the label directions.The herbicide <br /> q label is the LAW! <br /> HERBICIDE RATE APPLICATION TIMING <br /> Imazapyr* (Habitat**, o.5-1%v/v(o.6-1.3 oz. ima- Apply evenly over leaf surface "to wet," not dripping. <br /> Arsenal**for aquatic zapyr/gal water)+ 0.25%v/v Treat in the pre-bud to flowering stage. (June to August). <br /> use) non-ionic surfactant <br /> Glyphosate (Rodeo**, Up to 5%v/v(Up to 6.4 oz. Apply evenly over leaf surface "to wet," not dripping. <br /> Aqua Master**,Aqua- glyphosate/gal Treat in the pre-bud to flowerin stage. (June to August; <br /> Neat**for aquatic at least half of foliage should sti I be green). <br /> Note: * Imazapyr is NOT for use in ornamental or turf settings. <br /> **These herbicide products are non-selective and will kill any vegetation contacted. <br /> Other species herbicide recommendations:www.colorado.gov/agconservation/CSUHerbicideRecommendations.pdf <br /> ' <br /> Colorado Department of Agriculture-Conservation Services ' <br /> 305 Interlocken Parkway CO gdo <br /> AWENBroomfield,CO 80021 Jici 1....... <br /> Rev. "' (303)869-9030 ' <br /> 2/15 www.colorado.gov/ag/weeds Extension` <br />