2016-07-28_REVISION - M2008006 (2)

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competition with leafy spurge.These two procedures allow effective pasture A good weed-management plan use by other livestock,such as cattle, integrates two or more control that normally do not graze leafy spurge. measures into a management system. 3. Chemical control:In the fall,spray the Be systematic about weed infestation with Tordon 22K(picloram), Plateau(imazapic),or Perspective management. (aminocyclopyrachlor+chlorsulfuron) Keep good records of weed to control leafy spurge. management. This example integrates biological, cultural and chemical controls into a weed management system.If leafy spurge is the A systematic approach allows for a weed problem,you may have to repeat return on the control investment during this program most growing seasons. the weed management process.Ground With this procedure,you can still use that was lightly infested can be used for that land and see a return on your weed productive purposes,then some of that management investment. profit used to combat heavier infestations. Systematic Control Record Keeping and Procedures Evaluation Do not attempt to control all weed Keep good records of weed infestations in a single season,except on management.Include procedures used, small land parcels.The mapping procedure dates applied,weather conditions,and will indicate where dense infestations lie growth stage and condition of weeds and and where small scattered or perimeter desirable plants.Evaluate for success or infestations are located. failure.Good records and evaluation lead to Be systematic about weed management. successful management and fewer failures. Start with perimeter infestations.These are Often,evaluation efforts provide the the easiest and most affordable to control. most accurate assessment one to three years If controlled first,they can be kept from after control application.This is important becoming large and dense.If you start with for perennial weeds where follow-up is a large,dense infestations,perimeter ones key to successful weed management.The often get worse.This leads to frustration worst mistake to make is to use a weed and a sense of futility in weed management, management system,assume it will work, and not evaluate the outcome. Colorado State University,U.S.Department of Agriculture and Colorado counties cooperating. CSU Extension programs are available to all without discrimination.No endorsement of products mentioned is intended nor is criticism implied of products not mentioned.