Weed Control Alternatives in Snap Bean Production (1989)

Report to the Oregon Processed Vegetable Commission

Dan Curtis, Ray Williams, Garvin Crabtree, and Dan McGrath
OSU Dept of Horticulture

Recent shifts in the weed control program associated with snap bean production have resulted in use of herbicide combinations that achieve processor standards for weed contamination through additive control of problem weeds. Weed skips of particularly troublesome weeds such as hairy nightshade and redroot pigweed have occurred. In addition, preplant incorporated treatments of pendimethalin have seriously injured beans. Research during two seasons identified 2 diphenyl ether herbicides from the soybean market which looked promising in snap beans. Unfortunately, neither company wished to proceed with registration for snap beans.