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Proper identification of noxious weed species is extremely important for eradication or <br /> control efforts. A private contractor qualified in noxious weed identification has been <br /> contracted to perform site inspection to inventory noxious weeds at this location. <br /> Noxious weeds inventoried within the Bennett Gravel Pit are: <br /> • Diffuse Knapweed <br /> • Russian Knapweed <br /> • Canadian Thistle <br /> • Musk Thistle <br /> • Russian Olive <br /> • Whitetop (Hoary Cress) <br /> WEED CONTROL PRINCIPLES <br /> An integrated approach to weed management is extremely important because no single <br /> tool will do the entire job. Weed management results in highly effective weed control. <br /> Principals of weed management are: <br /> Prevention: Prevention of noxious weeds includes good land stewardship, planting <br /> weed free seed, avoiding planting invasive species, using weed seed free mulch and <br /> erosion control and using clean equipment. <br /> Cultural practices: Cultural practices encourage competition from desirable plants <br /> through dense seeding, fertilization, mulching, and improved land management <br /> practices. <br /> Chemical control: The sensible use of the proper herbicides at the optimum time can be <br /> the most effective method of control for very persistent weeds. Not all herbicides are <br /> equally effective on all weeds nor can every herbicide be used in every situation. A <br /> licensed professional will perform application of herbicides. The following list identifies <br /> the noxious weed species, preferred herbicide and recommended timing for application: <br /> Typically two herbicide treatments occur throughout the year for noxious weeds. The <br /> first application will occur in the spring, typically prior to May 15. The second application <br /> typically begins around the end of September. Additional treatment of weeds can <br /> around mid-summer. <br /> Tamarisk and Russian Olive <br /> Mechanized Control: Mechanical removal is the use of heavy equipment to physically <br /> remove tamarisk. This is accomplished in one of two ways — root crown removal or <br /> mulching. Brush hogging, root crown removal, and burning lead to less successful <br /> control due to the vigorous regrowth that occurs. However, cutting combined with <br /> herbicide treatment can be very effective at controlling tamarisk. <br /> Noxious Weed Management Plan 2 <br />