Morningglory
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Morningglory is a notoriously difficult weed to control, because it has a naturally-occurring tolerance to glyphosate.
- Common name: Pitted morningglory, tall morningglory, ivyleaf morningglory
- Scientific name: Ipomoea lacunosa, Ipomoea purpurea, Ipomoea hederacea
- Cotyledons: Two, notched leaves
- Leaf shape: Heart-shaped
- Reproduction: Seed pods
- Flowers: Trumpet-shaped in many colors, including purple, pink, blue and white
Fast Facts1
- Morningglory is a summer annual broadleaf.
- IWillTakeAction.com and WeedScience.org do not list morningglory as being herbicide-resistant in any state in the United States. However, the weed is shown to have a natural tolerance to glyphosate.
- A single tall morningglory plant per row foot can potentially cut soybean yield in half.
- Depending on the species, a single morningglory plant can produce as many as 15,000 seeds.
- The weed is very difficult to control, because it produces large, hard seed pods with an impermeable seed coat.
- Morningglories can germinate late in the growing season after crops have already been established.
Control Tips1
- Control existing morningglories with a preplant burndown herbicide application.
- Use a program approach to weed control, with multiple modes of action, including the use of the full rate of a nonglyphostate, preemergence herbicide.
- Use narrow row spacing when planting crops like soybeans. This will decrease the amount of time needed for the crop canopy to develop and take sunlight away from morningglories.
Corteva Agriscience offers the following weed control solutions.
Corn herbicides:
- DuPont™ Cinch® ATZ herbicide
- Durango® DMA® herbicide
- Elevore® herbicide
- Enlist Duo® herbicide, as part of the Enlist™ weed control system
- Enlist One® herbicide, as part of the Enlist™ weed control system FulTime® NXT herbicide
- Keystone® LA NXT herbicide
- Keystone® NXT herbicide
- DuPont Realm® Q herbicide
- Resicore® herbicide
- SureStart® II herbicide
Soybean herbicides:
- Durango DMA herbicide
- Elevore herbicide
- Enlist Duo® herbicide, as part of the Enlist™ weed control system
- Enlist One® herbicide, as part of the Enlist™ weed control system
- DuPont™ EverpreX® herbicide
- Sonic® herbicide
- Surveil® herbicide
- DuPont™ Afforia® herbicide
- DuPont™ Enlite® herbicide
- DuPont™ Trivence® herbicide
Source:
1United Soybean Board. 2016. Morningglory Management in Soybeans. https://iwilltakeaction.com/uploads/files/54403-01-factsheet-morningglory-lr_1.pdf
™ ® Afforia, Cinch, DMA, DuPont, Durango, Elevore, Enlist, Enlist Duo, Enlist One, Enlite, EverpreX, FeXapan, FulTime, Keystone, Realm, Resicore, Sonic, SureStart, Surveil and Trivence are trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. VaporGrip Technology is a registered trademark of Monsanto Technology LLC used under license. Cinch ATZ, FulTime NXT, Keystone LA NXT and Keystone NXT are Restricted Use Pesticides. FeXapan herbicide Plus VaporGrip Technology is a Restricted Use Pesticide. For retail sale to and use only by Certified Applicators and only for those uses covered by the Certified Applicator’s certification. Afforia, Cinch ATZ, Durango DMA, Elevore, Enlite, EverpreX, FeXapan herbicide Plus VaporGrip Technology, FulTime NXT, Keystone LA NXT, Realm Q, Resicore, Sonic, SureStart II, Surveil and Trivence are not registered for sale or use in all states. Keystone NXT is not available for sale, distribution or use in all states. FulTime NXT, Keystone LA NXT, Keystone NXT, Resicore and SureStart II are not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Enlist Duo and Enlist One herbicides are not registered for sale or use in all states or counties. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your area. Enlist Duo and Enlist One herbicides are the only 2,4-D products authorized for use with Enlist crops. Consult Enlist herbicide labels for weed species controlled. Always read and follow label directions.