Learn to
identify plants; know your property; beware of fill dirt, hay and seed
from outside your area
Biological – Several established and common in this area and
having some effect on density and vigor when found working together on
roots and seeds-especially Larinus minutus
Cultural – Competitive vegetation helps but can be displaced;
fertilizer and irrigation generally favor grasses and burning reduces
seed dispersal
Mechanical – Tillage, digging, pulling & cutting will
reduce or eliminate plants if repeated frequently, thoroughly &
prior to seed production
Chemical – Several effective at label rates with rosette and
early bolt best stages for treatment;
refer to the
PNW Weed Management Handbook for specific chemical recommendations
