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Colorado Noxious Weed Grants <br /> Comments for Coal Basin Mine Noxious Weed Management Project; Steve Renner <br /> - Overall a very good project and well thought out. The detail provided made <br /> evaluation of the project easier and is reflected in the scoring. <br /> - Monitoring: <br /> - The number of samples to monitor for success or failure is not mentioned. I <br /> suggest using a transect method—each being 100 in in length and sample at 5 m <br /> intervals. Further suggest using no less than 2 transects per acre of infested area. <br /> If you are using just cover as a measure, you could consider decreasing the size of <br /> the quadrat to 0.1 m(a Daubenmire frame). It may be useful to take weed density <br /> as well as cover(density only for weeds) simultaneously within the same quadrat <br /> when doing cover. If you stay with 1 m quadrats, you could decrease the length <br /> of transects and/or the number necessary per acre. Regardless of whether you use <br /> a transect method or a random location approach for the baseline data, be certain <br /> to permanently mark the sampled areas so you can return and sample the exact <br /> same spot in the future and determine a% change. This will be very powerful <br /> data to show success (or failure for that matter) and will compliment the photos <br /> you intend to take as well. <br /> Reseeding: <br /> - It is not clear whether you intend to seed grasses, forbs, shrubs, and trees <br /> simultaneously. I strongly suggest that you proceed in a stepwise fashion; i.e., <br /> sow grasses first because they are most competitive with weeds like plumeless <br /> and Canada thistle(and presumably houndstongue as well) and when you reach a <br /> time when further treatment with herbicides is no longer necessary, then seed <br /> those species that would be injured or killed by Tordon, Banvel, or Escort. Escort <br /> would be the lowest risk to the forbs, shrubs, and trees of these three herbicides <br /> but it will not control Canada thistle as well as Tordon in particular. <br />