Problem Weed: Little Christmas Trees

equisetumI have been asked by a lot of growers on how to get rid of the “little Christmas trees” in their soybeans and corn fields. This weed has a lot of common names; little pine trees, Christmas trees, scouring rush, horseweed and others. I refer to it as Equisetum.

This weed is extremely difficult to control. There are very few if any herbicide options available.  Purdue mentions a few that have activity but none that have control.  This plant is very primitive, it is not a broadleaf or a grass. Relatives of this species were around at the time of the dinosaurs. This plant can reproduce via underground stems and by seed.equisetum drawing

If possible keep it mowed off to inhibit reproduction and spreading. Tillage can spread this plant to some degree.  Please let us know if you have any questions on this troublesome weed.

Following are some datasheets that give you more insight on this weed and how to manage it.




Rob Shields, Agronomist

Updated Wisconsin Crop Progress

The new crop report came out yesterday.  It looks like we are at 86% corn emerged state average vs 48% last year this same time.  Soybeans we are at 61% emerged state average vs 35% last year.

To see the full report, click on the following link.  WI_05_31_15 Crop Progress report

I had over 4.5″ of rain over the past 10 days, I’m hoping for a couple of weeks of sunshine moving forward.

Rob Shields, Agronomist