Best Management Practices

Landscape plants in the nursery can harbor disease and pests and provide a pool of infection/infestation.  Removing them from the landscape can make retail plants less likely to become infected/infested.

            GWSS:  Citrus and grape families in close proximity have the greatest risk (83).

ACP:  (7).

            PR:  (72).  Wild susceptible species, such as poison oak, act as inoculum (17) (88).

            BB:  Any Brassicas in weedy areas along farm borders can harbor populations (75) (76)

            BMSB:  Though these are polyphagus, there is a preference for legumes.  Removal of these from borders limits populations (76)