Field Bindweed Information
Persistent, perennial vine of the morning glory family
Ranked among the top ten world's worst weeds
Distinguished from other bindweeds and morning glories by:
*Leaf shape, rounded arrowhead
*Flower size, small (1")
*Two small bracts located 1-2" below the flower
*Orchards and vineyards
*Roadsides and ditchbanks
*Streambanks and lakeshores
*Croplands and wastelands
*June through September
*Blooms last only one day
*Hard, impermeable coats
*Viable 30 days after pollination
*Majority of seeds fall near the plant, however seeds can be dispersed over longer distances
by water and birds
*Rhizomes and attached lateral roots can survive independently of the primary root, most in
the top 12" of soil, plants can regenerate from root sections as deep as 5 ft.
*Buds may arise at any point along a lateral root
*Vertical roots comprise 1/3 of total root system extend 2-30 ft. deep
*Shoot growth: 1st year, 18-51"
*Majority of shoots do not overwinter, however those that do can grow 70-114: during their
Growth and reproduction:
*Lateral root growth: 15-22 ft. per year
*Reproduction primarily from rhizomes
*Deplete carbohydrate reserves by continuous cultivation etc.
*Prevent vegetative spread
*Herbicides: dicamba, glyphosate, picloram, 2,4-D ester.
(Apply 2, 4-D when soil is wet, dicamba when soil is dry)
*Apply herbicides at or during first bloom when carb. reserves are lowest
*Applications made to mature leaves are more effective, cuticular wax is worn from abrasion
and more easily penetrated than seedling cuticle.
*Aggressively competes for light, nutrients and water
*Can reduce crop yields by 50-60%
*Toxic to some livestock