Herbicide Options for Control of Glyphosate-Resistant Weeds in Sugar Beet

Herbicide Options for Control of Glyphosate-Resistant Weeds in Sugar Beet

G2337

Since the commercialization of glyphosate-­resistant sugar beet in 2008, weed control practices have changed and glyphosate-­resistant weeds have become a major challenge. In the Western Sugar Cooperative production region of Colorado, Montana, Nebraska, and Wyoming, there are currently three known glyphosate-­resistant weeds: volunteer corn, kochia (Bassia scoparia), and Palmer amaranth (Amaranthus palmeri). These weeds can have a tremendous impact on sugar beet yields. If left uncontrolled, one volunteer corn plant every four feet of row can cause up to 25% sugar beet root yield loss. At the same density, kochia could cause up to 45% yield loss, and Palmer amaranth is expected to cause nearly 70% yield loss (Figure 1). To avoid the yield loss shown in Figure 1, it is important to control the weeds early in the growing season.

 

Details

AUTHORS

Nevin Lawrence, Andrew Kniss

SUBJECT

Crops / Weeds

PUBLICATION DATE

July 19, 2021

LAST REVISION DATE

None

LANGUAGE

N/A

FORMATS

PDF, HTML

SERIES

NebGuide