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Because
velvetleaf is so difficult to control once established, prevention
is important. Multiple control strategies may be needed to bring
about control.
Velvetleaf seed is often scattered to new fields during harvest.
Game animals and livestock can also transport seed. Individual plants
can be removed by hand-pulling or hoeing, but plants should be burned
because seed can mature even after the plant is pulled from the
ground.
Crop
rotation appears to reduce amount of velvetleaf seed in the soil
because varying cultural practices ensures that the weed will not
have continuously favorable conditions.
No
biological control agents
are currently available for velvetleaf. While it is a host for tobacco
budworm (Heliothis virescens) and bollworm (H. zea),
these insects are serious crop pests and cannot be encouraged for
control of velvetleaf.
Herbicides
can be effective against this weed, but velvetleaf has developed
resistance to some widely used chemicals, including atrazine and
Roundup® (glyphosate).
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