View Full Version : crabgrass

05-17-2008, 08:56 AM
Is any crabgrass emerged in your area? If so how big or how far along? Here the first crabgrass became visible about 10 days ago on a lawn neighbor's neglected lawn that had a serious crab problem last year. Growing degree days (base 32) of 700. The crabgrass is still small--two leaves spreading to about a half inch wide. Air temps here are about 65 to 70 this week.

05-17-2008, 05:24 PM
Down here, I applied Dimension in February and April. The only crabgrass I've seen so far is in the natural areas, cracks of sidewalks, and some of the garden beds.

05-18-2008, 12:59 PM
It appears that crabgrass sprouts here in Grand Rapids at about 700 Growing Degree Days (base 32). (About May 4th in 2008). Sprouts about a quarter inch tall.
This is Growing Degree Days (base 50), of about 250. Soil temp about 57 degrees F.
This is for a very thin, sandy neglected test lawn, that had serious crabgrass problems in the previous year.

On May 18 crabgrass is in 2 leaf stage, and about 3/4ths inch wide. Not sure if Dimension would be effective at this date, or what rate needed.

05-18-2008, 08:35 PM
Not yet but have seen nutsedge!!!

05-23-2008, 02:39 AM

Don't know where you are in relations to Northeast Arkansas but nutsedge is practically taking over.........makes you thing of corn 2 weeks up.

Maybe we can make it move northward then (just joking).

05-23-2008, 04:44 AM
Nothing here yet. Usually see it start around July 1st.