Nozzle selection is not always the foremost thought when preparing to make a weed control application. However, it can have a significant impact on the effectiveness of the herbicide. This is especially true with contact herbicides like fomesafen or glufosinate. Choosing the correct nozzle can be the difference between having a weedy mess or an effective application. Continue reading
All posts by Larry Steckel, Extension Weed Specialist
Burning Down Partial Cotton Stand to be Planted Back to Soybean
It has been a very tough spring for cotton. There have been a good deal of questions this week on ways to clean up partial cotton stands to make way to plant soybean. Continue reading
Dicamba Burndown Carrying Into Soybean
Dicamba burndown residual causing soybean injury has been a very common call over the last several days. Continue reading
Maximizing Efficacy from POST Herbicides for Palmer amaranth
With the weather finally looking like it will give us a break, many people are gearing up to spray. Most folks are aware of the effect that time of day of application can have on glufosinate (Liberty, Cheetah, etc…) and how to maximize the effects of this herbicide. In a recent test we found that application time of day can also affect many of the PPO herbicides (Flexstar, Prefix, Ultra Blazer, Cobra, etc…) that are commonly utilized for controlling Palmer amaranth. Continue reading
Grain Sorghum Infested with Grass Weed Options
Our weed control in grain sorghum this spring ranges from fields that are in pretty good shape to quite a few fields that are absolute grassy weed messes. There have been a number of calls from folks wanting to rescue some of these grain sorghum fields from this grass. Continue reading
Cotton Injury From Post-Applied Dual and Warrant
It will not be surprising to hear reports on cotton burn from herbicide tankmixes over the next week or so for two reasons. Continue reading
Fomesafen Carryover
As expected carryover injury from fomesafen (Flexstar, Prefix, Reflex, Intimidator, Marvel, Dawn, Rhythm, etc.) is starting to show in some fields. The reason it is showing now is due to all the rain allowing any herbicide carryover to more completely get into the soil solution. Continue reading
Palmer Amaranth Management in Soybean Over the Next Two Weeks
The large rain event over the weekend really was needed and from a weed control perspective greatly helped activate PRE applied herbicides. Unfortunately, the long dry spell before that allowed a lot of weed escapes in some fields and managing them has become a concern. Continue reading