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i ~ ~ ~"'IUL.27.2001 6~04PM UNITED COMPRNIES N0.67B <br />III IIIIIIIIIIIII III • <br />999 <br />Best Management practice, for the Noiious Weeds of Mesa County <br />GENERAL RIILES <br />1) KNOW YOUR WEEDS! Identification is the f;zst step m forming a weed management plea <br />P.32 <br />2) Early detection is always rho best defense against noxious weeds. Treat intensely when a new or small <br />patch is found <br />3) Understand the biology of the weed to identify the best management practices. <br />4) Know which growth stage to implement control measures so that control is most effective. For <br />example, once a biemtial or annual has gear, to seed, it is too late to do anything about it, Spraying a <br />peremial in the rosette stage is a waste of chemicals as the root system w171 send up new shoots. <br />5) Use weed free seed, hay, forage, and mulch. <br />~ Reseed site with competitive species. l.ttasses ere often recommended so that broadleaf herbicides can <br />be used to spot treat broadleaf weeds. <br />7) When tilling, till only in the weed patch so roots and seeds do not get spread. Always clean equipment <br />and machinery after working in a weed patch to prevent spread. <br />8) MaaY biological control agents are available for cool of large weed patches. ThLs is a long-teffi <br />process and not recommended for small patches. Biological control never provides 100% control and <br />must be incorporated with other methods for sttccesstitl management. <br />9) Wecd ,.,Ar,~~„r is a long tens process and hence a long term commitment to the land. Weed seeds <br />last 5-50 years in the soil and pieces of mot as small as 12" can start a new plant and a new infestation <br />10) Drought causes plants to shut down their growth process. Sp~raymg weeds during dry periods is not <br />rxommended because effiectiveness diminishes greatly. Treat after rainfall IF the weed is still in the <br />proper stage for effective coattoL <br />11) Not all herbicides work equally on all weeds nor can every herbicide be used in every situation <br />Noxious weeds, in particular, aze often not cgnirolled successfully with products available at nurseries, <br />garden shops and other retail markets. Read the label, and consult weed manuals and experts for the <br />most effective chemical to use. <br />12) Developing a weed management plan depends on how much time, money, and laud a person has. If <br />someone wants to do non-chenrical control, they will not need a lot of money, but they w171 aced a lot of <br />time and energy. If they want fast action, herbicides can be the most efficient vse of mosey and time, but <br />not always. Affiual weeds maybe as effectively colnrolled with trTege or hoeing as with spraying if done <br />properly and at the right time. <br />