The Good Old Days Of
Weed Control
Larry Steckel
Jackson, Tenn.
Neither dicamba nor 2,4-D will control large Palmer pigweed like we could with glyphosate "back in the day." However, in early work they do appear that they will control Palmer that is less than eight inches tall. In other words, these will be welcome tools to help us manage this weed, but we will still need to use pre-emergence herbicides as well as directed applications in most cases.
Cotton producers are now going through some expensive and frustrating times trying to manage GR Palmer amaranth. I am going out tomorrow to help a couple of producers decide whether to disk down some GR Palmer amaranth-infested crops or try to salvage them. It is a frustrating time for weed scientists in cotton country as well. We would like to have a better answer than "get the disk out."
On the positive side, we can manage this weed if we change our weed control strategies. It will not be as cheap or easy as when glyphosate controlled Palmer, but with the use of a pre-emergence herbicide coupled with directed applications and in severely infested fields a timely application of Ignite, it can be done.
source : cottonfarming
Weed Control
Larry Steckel
Jackson, Tenn.
Neither dicamba nor 2,4-D will control large Palmer pigweed like we could with glyphosate "back in the day." However, in early work they do appear that they will control Palmer that is less than eight inches tall. In other words, these will be welcome tools to help us manage this weed, but we will still need to use pre-emergence herbicides as well as directed applications in most cases.
Cotton producers are now going through some expensive and frustrating times trying to manage GR Palmer amaranth. I am going out tomorrow to help a couple of producers decide whether to disk down some GR Palmer amaranth-infested crops or try to salvage them. It is a frustrating time for weed scientists in cotton country as well. We would like to have a better answer than "get the disk out."
On the positive side, we can manage this weed if we change our weed control strategies. It will not be as cheap or easy as when glyphosate controlled Palmer, but with the use of a pre-emergence herbicide coupled with directed applications and in severely infested fields a timely application of Ignite, it can be done.
source : cottonfarming
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