

(Agropyron repens)(Elymus repens)
Aggressive, perennial, cool season grass
Distinguished from other grasses by its prominent pale yellow or straw-colored rhizomes with a tough brownish sheath at every joint.
Habitat:
*Open areas, moderate to high nutrient levels
*Crop fields
*Grazed pasture
*Sod farms
*Old fields/home sites
*Wet prairies
*Riparian corridors
Flowers:
*June through August
Seeds:
*Wind-pollinated
*Self-sterile
*Average 25-40 per plant
*Viability: 2-4 years
Rhizomes:
*Growth initiates in April/May
*New rhizomes form at soil surface
*New rhizomes form apical buds in June/July
*Established rhizomes normally dormant June through August
Growth and reproduction:
*Optimum temperatures for growth: 68-77 degrees
*Temperatures below 35 and above 95 inhibit growth
*Rhizome growth is triggered at 50 degrees, plus 18 hour photoperiod
*Majority of rhizome growth occurs in the top .75"-4" of soil, some as deep as 16"
Management:
*Tillage in the spring at 2" height for minimum 2 years
*Close mowing or grazing prior to tillage
*Consistent spring burning
*Herbicides: fluazifop, glyphosate, sethoxydim
Threats:
*Aggressively competes for light, nutrients, and water
*Highly allelopathic, capable of forming monocultures