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<br />organic matter. A. cyparissiae prefers soils higher in moisture than A. nigriscutis, but still <br />prefers moderately coarse-textured soils such as sandy loams and open sites. A. flava <br />does well in coarse soils with high water tables in open and shaded conditions. A. <br />czwaiinae prefers moist; clay soils. <br />Regardless of the management system used, a combination of methods is essential to <br />return leafy spurge-infested ground to a productive state. The key to control leafy spurge <br />or any creeping perennial is to exhaust the root nutrient stores, causing it to collapse. <br />Persistence is imperative to gain control. <br />'Colorado State University Cooperative Extension weed science specialist and professor, bioagricultural sciences <br />and pest management. 2/00. Revised 3/03. <br />Go to top of this page, <br />Updated Friday, February 04, 2005. <br />I Answerlink I CSU_AgNews i Employment i Other Links I Putrlications I Staff Resources I Site Search <br />CE Nome CSU_Home I RamPoint i About Us Calendar I Staffrectory WebmAster <br />Disclaimer I Equal Opportunity Non-Discrimination Statement <br />111 <br />h4://www.ext.colostate.edu/pubs/natres/03107.html 6/20/2005