How to Manage Pests

UC Pest Management Guidelines

FIELD BINDWEED. If possible, avoid growing beans in fields infested with field bindweed as there are no herbicides registered for postemergent application in beans in California that controls this weed.

Bindweed is a persistent perennial weed and control should be an ongoing program. For annual crops like beans, take control measures before planting to reduce the population. Fall treatments in September or October of glyphosate (Roundup) or 2,4-D will reduce spring populations and help beans to get a head start. If bindweed has emerged before planting, tillage or glyphosate treatments are suggested.

NUTSEDGES. Both yellow and purple nutsedge are serious problems in dry bean fields and should be controlled in rotation crops. To suppress these weeds, use EPTC (Eptam) or metolachlor (Dual Magnum) in a preplant incorporated application. Several cultivations can also be made until the bean plants cover the rows to suppress populations.

PUBLICATION

UC IPM Pest Management Guidelines: Dry Beans
UC ANR Publication 3446
Weeds
W. M. Canevari, UC Cooperative Extension, San Joaquin Co.
Acknowledgment for contributions to the weed section:
C. A. Frate, UC Cooperative Extension, Tulare Co.

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