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A Self-Learning Rangeland Weed <br /> Resource From <br /> MSU Extension Management <br /> t 5i <br /> by Roger L. Sheley,former Montana State University Extension Noxious <br /> Weeds Specialist <br /> A A e ` <br /> Now to plan and implement a rangeland weed management program, <br /> focusing especially on control of noxious weeds. <br /> MT199504AG Revised 4/10 <br /> TODAY'S RANGELAND MANAGERS DEPEND UPON for Nonindigenous Plant Species(EB0171),available from <br /> integrated weed management(IWM) because of the MSU Extension Publications,can also provide guidance <br /> magnitude and complexity of noxious weeds combined for weed inventory and mapping. <br /> with the cost of controlling them.Any IWM program <br /> involves the use of several control techniques in a well- Planning and Implementation <br /> planned,coordinated,and organized strategy to reduce Planning and implementing an integrated weed <br /> the impact of weeds on rangelands. management strategy is the second phase of rangeland <br /> Inventory and mapping are the first phases of any weed management.Problems and solutions must be <br /> integrated weed management program.The second identified and prioritized and an economical plan of <br /> phase includes prioritizing weed problems and choosing action should be developed to provide direction for <br /> and strategically implementing control techniques for implementing the IWM program.Integrated weed <br /> a particular weed management unit.The third phase is management includes preventing encroachment into <br /> adopting proper range management practices as a portion rangeland that is not infested,detecting and eradicating <br /> of the integrated program.The IWM program must fit new weed introductions,containing and controlling <br /> into an overall range management plan. large-scale infestations using an integrated approach,and <br /> often,revegetation. <br /> Inventory and Mapping The key components of any successful weed <br /> Inventory comes first in all integrated weed management management program are sustained effort,constant <br /> programs. Identifying weeds and conducting an evaluation and the adoption of improved strategies. <br /> inventory require considerable technical skill and can County weed coordinators,Extension agents and private <br /> be time consuming but are necessary.The goal is to consultants can assist in planning and implementing <br /> determine and record the weed species present,the area IWM strategies. <br /> infested,the density of the infestation,rangeland under <br /> threat of invasion,soil and range types and other site Preventing Weed Encroachment <br /> factors pertinent to successful management of weed- Preventing the introduction of rangeland weeds is <br /> infested rangeland. Inventories can be conducted by the most practical and cost-effective method for their <br /> field surveys,aerial photography and using geographic management.Prevention programs include limiting weed <br /> information systems. seed dispersal,minimizing soil disturbance and properly <br /> Information from an inventory should be incorporated managing desirable vegetation.New weed introductions <br /> into a map that shows the location,type and size of can be minimized by: <br /> weed infestations.Accurate mapping is important in 1) using weed-seed-free hay,feed grain,straw and mulch, <br /> developing a land use plan and in evaluating the success 2) refraining from driving vehicles and machinery <br /> of a weed management program.Your county weed through weed infestations and washing the under- <br /> coordinator or Extension agent can assist you in your carriage of vehicles and machinery after driving <br /> inventory and mapping.Inventory and Survey Methods from a weed-infested area to an uninfested area, <br /> i <br /> For More Online MontGuides,Visit <br /> _ .s <br />