Top 5 Reasons to Control Weeds in the Fall
Got weeds at harvest? Even with the most intense weed management program some weed escapes may happen. Harvest is a great time to gather information that could help increase profits next season. Gin receipts tell which varieties yielded the most on your farm, but they don’t paint the entire picture. Take the time to re-evaluate this season’s weed management plan and write down what you should revise for next year. Consider these 5 reasons:
- Know Your Weeds, Know Your Fields
Understand the weed pressure and history in each field. If you didn’t closely monitor those fields with differing weed pressures, make a note of it now; especially those with areas of difficult-to-control weeds or dense weed populations.
Indicators of Potential Weed Resistance:
- A patch of weeds occurs in the same area year after year and is spreading.
- Surviving weeds appear next to dead weeds after the same herbicide application.
- Many weed species are managed, but one particular weed species is no longer controlled.
- A lack of control of specific weed species when the field has been sprayed repeatedly with the same herbicide MOA, particularly if there was no MOA diversity in the weed management system.
- Reduce the Seed Bank
It seems easy enough to say growers should not allow surviving weeds to set seed. But even one Palmer amaranth plant left in a field can produce up to 1 million seeds in optimal conditions. Ensure that weeds are controlled up to the edge of the field and discourage weed seed production on field borders. The weed seed bank grows by allowing partially controlled weeds to reproduce and set seed.
- Reduce Your Weed Control Costs
Each year brings new challenges, and weed control costs rise as resistant weeds increase. Good weed management strategies will help you control costs during the season and reduce the need for unplanned herbicide applications and manual labor. Your most expensive application is the one that doesn’t work.
- Reduce the need for late season worm control
It may not happen every year, but when weeds in the field and on the turnrow bring in beet armyworms, you have to control them to keep strong yields and quality. Control as many of the weed variables in and around your fields as you can during the season and keep money in your wallet.
- Manage Your Risk
Resistant weeds aside, cotton requires strong weed control because it does not compete well with weeds, especially early in the season. As a result, weeds will reduce cotton yield more than corn or soybean yield. Weeds may also interfere more with harvesting of cotton, and they can reduce lint quality because of trash or possibly stain.
Choose the LibertyLink® system in your favorite FiberMax® and Stoneville® cotton seed varieties in 2015 and help put your weed woes to rest. With GlyTol® LibertyLink and GlyTol LibertyLink TwinLink® stacked technology, growers can make over-the-top applications of either glyphosate or Liberty® herbicide. This gives growers two herbicide modes of action to control weeds effectively and reduce the potential for resistance as part of a comprehensive full-season overlapping residual herbicide plan. It also protects against the potential for damage due to off-target movement of Liberty or glyphosate from nearby fields.
Crop Science currently is the only company that offers cotton varieties with stacked herbicide trait technology for strong yields and quality. Crops with the LibertyLink trait allow growers to spray Liberty in-crop for nonselective, postemergence control of the toughest weeds, including Palmer amaranth, giant ragweed, waterhemp and marestail. The system also gives growers another herbicide application option if their pre’s don’t activate with Liberty herbicide.