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Management of field bindweed

Management of field bindweed

Field BindweedControl: Field bindweed is an extremely difficult noxious weed to control because, in part, of its taproot that may go 20 feet deep into the soil, and which repeatedly gives rise to numerous long rhizomes.

Chemical: Herbicides labeled for use on field bindweed and found to be effective are: picloram (Tordon 22K), dicamba (Banvel), glyphosate (Roundup, Rodeo), and 2,4-D. Picloram and dicamba can injure trees. Effective control can take many years with some herbicide use strategies. Proper timing of application is critical, during late spring, or just after full-bloom, and early fall are ideal opportunities to apply picloram and 2,4-D.

 

Mechanical: Mechanical control of field bindweed is difficult because of its low growth habit. Mowing generally has little or no effect. Hoeing or grubbing are more effective. Cultivation at intervals of 10 to 14 days can be effective, but 2 or more growing seasons of diligent effort are needed to achieve stand reduction. Cultivation intervals must continuously be maintained. Cultivation can spread bindweed rhizomes to noninfested sites via dragging, or from being transported on the cultivation equipment. Field Bindweed

 

Biological: Biological control of field bindweed is difficult, at best. No insects are available that effectively control this weed. Livestock will graze bindweed as a nutritious feed; horses, however, can develoop intestinal problems when eating primarily bindweed. Because of its low growth habit, however, bindweed tends not to be grazed radically enough to cause necessary plant stress. If it is, often the site is overgrazed, which is not desireable and tends to favor bindweed proliferation. Seed production may not be prevented, despite efforts through grazing.

 

Cultural: Cultural control methods tend to work poorly towards controlling bindweed. A productive, aggressive grass stand will tend to slow the spread of bindweed, and to deter the establishment of new infestations. But bindweed will survive and spread, even in a bluegrass lawn.

 

Field Bindweed Infestation

Bindweed Mites

Field bindweed management calendar

  Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec
Active Growth       X X X X X X X    
Flowering            X X X X      
Herbicide          X X X X        
Application          X X X   X X    

 


 

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