Currently, there is no treatment available. Because fiddleneck is a native plant and it is toxic to livestock, there are limited control options. If you have an infestation of fiddleneck, you may want to consider mowing, which can be effective when done before seeds are produced (DiTomaso, Kyser et al.

How do you get rid of fiddleneck?

Once the plants are large and flowering, there isn't anything one can spray that will totally eliminate these weeds in forage crop fields. Burning the leaves and stems with an herbicide to a point where they begin to desiccate would reduce the amount of weed biomass, but toxicity will not be eliminated.

Is fiddleneck invasive?

Common fiddleneck is considered an indicator species of disturbed light soils. This plant can become invasive in abandoned crop land, land in CRP and neglected pastures.