Solutions for Weeds
Annual Bluegrass Seedheads
Recent research has shown fall is the time to start controlling next spring’s annual bluegrass seedheads since seedhead formation is initiated in fall under shorter days and cooler temperatures. Applications of Proxy ® in late fall plus spring improve control and consistency of control over the traditional spring-only applications.
Application
Timings
Product and use rate per 1,000 st. ft.
Proxy ® 5 fl. oz. + Stressgard ® -containing fungicide
With the snow mold fungicide application or after growth slows
Late fall application
Always more effective to be early than late on spring applications. Initial application can be scheduled by: • Boot stage of annual bluegrass seedhead • Forsythia bloom • 150-200 Growing Degree Days base 32 (GDD32) starting January 1st • 50 GDD50 starting February 1st
Proxy 5 fl. oz. + Stressgard-containing fungicide
First spring application
Proxy 5 fl. oz. + (Primo Maxx ® 0.125 fl. oz. or Anuew ® 2 fl. oz./A or Anuew EZ 4.4 fl. oz./A and/or Stressgard-containing fungicide) Proxy 2.5 fl. oz. + (Primo Maxx 0.063 fl. oz. or Anuew 1 fl. oz./A or Anuew EZ 2.2 fl. oz./A) Proxy 5 fl. oz. + (Primo Maxx 0.125 fl. oz. or Anuew 2 fl. oz./A or Anuew EZ 4.4 fl. oz./A)
Second spring application
3-4 weeks after initial spring application
2-week intervals
Additional applications until seedhead production ceases
4-week intervals
Annual bluegrass can produce seedheads during an extended period. Control starts with Proxy ®
Poa annua seedheads affect smoothness of greens. Control with Proxy ® improves puttability and speed. (Envu)
applied when mowing slows in the fall. (Envu)
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July, 2024
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