Lecture 11: Identification and Control of Nutsedges in Landscape Plantings

Study Questions:

See Horticulture Information Leaflet (HIL-647), Controlling Sedges in Landscape Plantings.
  1. Describe three strategies for controlling yellow nutsedge in woody landscape plantings: (ie: PRE, POST Selective, POST non-selective). Be specific – products, application timing, and frequency of application).
  2. Of the herbicides discussed in lecture: which preemergence and postemergence herbicides are effective on:
    1. Yellow nutsedge only
    2. Yellow nutsedge and purple nutsedge
    In a planting of annual bedding plants what can be done to control yellow nutsedge?
  3. In a planting of annual bedding plants what can be done to control purple nutsedge?