Weed of the Month for March 2013 is Large Crabgrass

Large Crabgrass  Biology: Large crabgrass ( Digitaria sanguinalis ), smooth crabgrass (Digitaria ischaemum), and to a lesser extent southern crabgrass (Digitaria ciliaris) are all species found in the Midwest that are collectively...
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Turf Notes: Disease and Fungicide Update

Early Season Dollar Spot Sprays The pathogen must be active in order for the mycelium to absorb a fungicide.  We know that Sclerotinia homoeocarpa grows when temperatures remain above 55F in the presence of ample moisture.  If such conditions prevail in March (as they did in 2012), then early...
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A Much Different Start to the Year

A year ago we had record high temperatures and we were scrambling to apply preemergence herbicides for crabgrass control. On March 22 last year, I had crabgrass germinating in my garden! However, this year I can tell you that crabgrass...
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Use Growing Degree Days to Better Time Your Applications

Monitoring growing degree days can be an effective way to better time applications and increase your weed control. A helpful website (www.gddtracker.net) is available to help you monitor growing degree days for timing herbicide and plant growth regulator applications. What can this website help me with? Need...
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New Weed of the Month Series: February is Prostrate Knotweed

This post kicks off a new series that we will be posting via turf tips called, “Weed of the Month”. In each post we’ll discuss a timely weed (one that you’re seeing at that particular time of year) and we will highlight its biology,...
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