Now is the time of year growers should plan their weed control programs. Palmer pigweed management requires using the right herbicides in a timely manner. Below are the UF/IFAS recommended Palmer pigweed management programs for cotton and peanuts.
If you would like more information about weed control, contact your local UF/IFAS Extension Agriculture Agent or see the fact sheet called Control of Palmer Amaranth in Agronomic Crops.
Cotton Herbicide Programs
| Cotton Type | Preplant/PPI* | At Planting | Early Postemergence | Layby |
| Roundup Ready | Valor or Reflex (Preplant) | Prowl + Staple or Direx | Glyphosate + Dual Magnum
(if seedlings have not emerged) | Direx + MSMA |
| Banvel/Clarity or Direx(Preplant) | Cotoran or Reflex + Prowl | Glyphosate + Staple + Dual Magnum
(Dual should be applied 5 days or more before or after the glyphosate + Staple.) | Valor † + MSMA |
| Treflan or Prowl PPI | Cotoran or Reflex + Staple | Glyphosate + Dual Magnum
(if seedlings have not emerged.) | Valor + MSMA |
| Liberty Link | Valor or Reflex(Preplant) | Prowl + Staple or Direx | Liberty 280 +Dual Magnum
(Liberty will control emerged seedlings) | Direx + MSMA |
| Banvel/Clarity or Direx (Preplant) | Cotoran + Prowl | Liberty 280 +Dual Magnum
(Liberty will control emerged seedlings) | Valor + MSMA |
| Treflan or Prowl PPI | Cotoran + Staple | Liberty 280 +Dual Magnum
(Liberty will control emerged seedlings.) | Valor + MSMA |
| *Preplant incorporated.†In the interest of resistance management, if Valor or Reflex is applied near planting, it is not recommended to use Valor at layby. Likewise, Direx should not be used on the same acre twice in the same growing season. |
Peanut Herbicide Programs
| Peanut | Incorporated | Preemergence | Early Postemergence | Layby |
| Any cultivar | Prowl or Sonalan | Valor | Paraquat + Dual Magnum ± Basagran | Cobra + crop oil
or Cadre + 2,4-DB |
| | Valor + Prowl | Paraquat + Dual Magnum ± Basagran |
Source:ufl.edu