Quite a few reports coming in from folks who are finding Palmer Amaranth up in their fields. We have found some that were over an inch tall today (March 20). Some have expressed concern that the Palmer amaranth is up this early. Though it definitely could be an issue if allowed to get large and thick by planting, it could also be a positive. Continue reading
All posts by Larry Steckel, Extension Weed Specialist
Controlling Tillage Turnips Prior to Planting
Judging by recent phone calls the tillage turnips did not freeze kill. Some are 18” tall and as big around as your wrist. The question is how to control them this spring with so much growth. Continue reading
Managing Glyphosate-Resistant Palmer Amaranth in Grain Sorghum
It appears that Tennessee may have more grain sorghum planted in 2012. Several growers have figured that they can be more profitable with grain sorghum than soybean on some of their farms. Continue reading
Technical Service Provider Training in Little Rock
As you know, we have been working with the Natural Resource Conservation Service (NRCS), and Tennessee Association of Conservation Districts (TACD) to develop a program to highlight the impact of herbicide resistant weeds on agriculture. It appears that some cost share incentives will be offered to those farmers with “Herbicide Resistant Weed Management Plans”.
However, these plans must be written by qualified “Technical Service Providers” (TSPs) and since this is a new program, there are currently no TSPs to write the plans. A training program has been pulled together over the past few days to offer TSP training to any consultant interested. Continue reading
Planting Cotton in Fields with Heavy Glyphosate-Resistant Palmer Amaranth Pressure
The question has been asked how to manage fields with heavy infestations of glyphosate-resistant (GR) Palmer amaranth that will be planted to cotton. Continue reading
Planting Soybeans in Fields with Heavy Glyphosate-Resistant Palmer Pressure
I wrote last week on managing heavy glyphosate-resistant (GR) Palmer amaranth infested fields in a corn rotation. Several have commented that this leads to the next question of how to manage these fields going back into conventional, Roundup Ready or Liberty Link soybeans. Continue reading
Corn Rotation on Fields with Heavy Glyphosate-Resistant Palmer Amaranth Seed Bank
What is the best herbicide for corn that is being planted into fields with overwhelming Palmer amaranth soil seed bank? There are two key aspects to manage heavy GR Palmer infestations in corn. First is to use at least two herbicides with good activity on Palmer amaranth. The second is to use these herbicides in a split application. Continue reading
Glyphosate-Resistant Bluegrass (Poa) Confirmed in Tennessee
Dr. Jim Brosnan, UT turf weed scientist, has just confirmed that annual bluegrass (Poa) he collected from a golf course back in 2010 in West Tennessee is glyphosate-resistant (GR). Continue reading