Page 110 - AG 7-2011 Revised 2016
P. 110

Photo Courtesy of  PBI/Gordon Corp.                                                                                                              Yellow Foxtail
                                                                                                                                                (Setaria glauca)
Drawing by Andrew Schaible                                                                              Yellow foxtail is a summer annual which germinates when soil
                                                                                                        temperatures reach 65 degrees F. The leaves are rolled in the
                                                                                                        bud. The ligule is a fringe of hairs, and the auricles are absent.
                                                                                                        The collar is narrow and continuous. The blades of yellow foxtail
                                                                                                        contain hairs near the ligule. The growth habit of yellow foxtail is
                                                                                                        erect.
                                                                                                        The seedhead is a bushy, erect spike which resembles the tail of
                                                                                                        a fox.
                                                                                                        Foxtail is found throughout the United States, but is most heavy
                                                                                                        in the Midwest and East.

                                                                                            immature stage

                                   Integrated Pest Management Control Recommendations
                                   Cultural Practices:
                                   Do not seed, core aerate or verticut when soil and weather conditions are appropriate for germination. When foxtail
                                   begins producing seedheads, lower your mowing height. Foxtail is generally not a problem in well established vigorous
                                   turf sites
                                   Herbicide Use:
                                   Use a preemergent herbicide containing siduron when establishing turfgrass from seed. Postemergent herbicide app-
                                   lications may damage desirable seedling grasses. Follow university extension center recommendations for your area.

                                                                                                                                                    Wild Oats
                                                                                                                                                 (Avena fatua)
                                                                                                        Wild Oats is an annual grass with hollow erect stems from 0.3 to 1
                                                                                                        metre tall; leaves of seedlings twist counter-clockwise when viewed from
                                                                                                        above; yellow to black seeds with a bent, twisted bristle (awn); seeds with
                                                                                                        a circular scar (sucker mouth) at the base.
                                                                                                        Heavily bearded flowers. Awns are twisted and bent at right angles when
                                                                                                        mature.
                                                                                                        Base of leaf blades are slightly hairy.
                                                                                                        Seeds can remain viable in soil for over 10 years.

                                                                                    immature stage

                                   Integrated Pest Management Control Recommendations

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