Postharvest Kochia (<i>Kochia scoparia</i>) Management with Herbicides in Small Grains

Mickelson, James A.; Bussan, Alvin J.; Davis, Edward S.; Hulting, Andrew Gerald; Dyer, William E.

doi:10.1614/wt-03-164r1

Cited by 20 publications

(28 citation statements)

References 15 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although kochia germinates and emerges mainly in early spring, additional flushes can occur throughout the growing season (MAFRI 2006). Kochia may emerge after postemergence herbicide application, resulting in substantial uncontrolled populations (Mickelson et al 2004). In southern Manitoba, Schwinghamer and Van Acker (2008) observed kochia emergence throughout the growing season, albeit in small numbers after the initial flush in early spring.…”

Section: MMmentioning

confidence: 99%

“…Additionally, postemergence herbicides or mixtures such as atrazine, dicamba plus 2,4-D, or bromoxynil plus MCPA control kochia in corn (Blackshaw 1990;Saskatchewan Agriculture and Food 2008). In the northern Great Plains of the USA, glyphosate or paraquat applied post-harvest effectively reduced seed production from kochia plants that regrew after wheat or barley harvest (Mickelson et al 2004).…”

Section: Response To Herbicides and Other Chemicalsmentioning

confidence: 99%

See 1 more Smart Citation

The biology of Canadian weeds. 138. Kochia scoparia (L.) Schrad.

Friesen¹,

Beckie²,

Warwick³

et al. 2009

Can. J. Plant Sci.

109

164

View full text Add to dashboard Cite

Kochia [Kochia scoparia (L.) Schrad.] is an annual broadleaf weed species native to Eurasia and introduced as an ornamental to the Americas by immigrants in the mid- to late 1800s. Although sometimes categorized in the genus Bassia, there is no compelling reason for this classification. This naturalized species is a common and economically important weed in crop production systems and ruderal areas in semiarid to arid regions of North America, and has expanded northward in the Canadian Prairies during the past 30 yr. Although primarily self-pollinated, substantial pollen-mediated gene flow and efficient seed dispersal aids both short- and long-distance spread. The weed is morphologically highly variable, and its growth and development are markedly affected by environmental conditions. Kochia, a C4 species, is highly competitive in cropping systems because of its ability to germinate at low soil temperatures and emerge early, grow rapidly, tolerate heat, drought and salinity, and exert allelopathic effects on neighboring species. Moreover, herbicidal control has been compromised to some extent by the widespread evolution of herbicide resistance in the species. Kochia is used as a forage, is palatable to livestock with nutritional value similar to that of alfalfa (Medicago sativa), but can be toxic if it comprises the majority of the diet. Although kochia pollen is an allergen, the seed is a source of phytochemicals including mosquito pheromones and saponins that are potentially beneficial to human health; kochia also is beneficial in phytoremediation of soils contaminated by hydrocarbons or pesticides. Key words: Kochia, Kochia scoparia, Bassia scoparia, herbicide resistance, soil salinity tolerance, weed biology

show abstract

Section: MMmentioning

confidence: 99%

Section: Response To Herbicides and Other Chemicalsmentioning

confidence: 99%

The biology of Canadian weeds. 138. Kochia scoparia (L.) Schrad.

Friesen¹,

Beckie²,

Warwick³

et al. 2009

Can. J. Plant Sci.

109

164

View full text Add to dashboard Cite

show abstract

“…However, with the increased use of glyphosate, fields in Iowa, Illinois, and Missouri began reporting GR weed species (Culpepper, 2006;Owen, 2002;Rosenbaum & Bradley, 2013). Additionally, glyphosate and ALS-inhibiting herbicides are predominant chemistries used to control kochia in chemical-fallow, pre-plant burndown, and post-harvest in wheat (Donald & Prato, 1991;Lloyd et al, 2011;Mickelson et al, 2004;Kumar et al, 2014;Kumar & Jha, 2015a, 2015b. In a recent research Kumar et al (2015) reported the underlying mechanisms of glyphosate and ALS resistance in kochia accessions from Montana.…”

Section: Introductionmentioning

confidence: 99%

Confirmation of Glyphosate- and Acetolactate Synthase (ALS)-Inhibitor-Resistant Kochia (Kochia scoparia) in Nebraska

Rana¹,

Jhala²

2016

JAS

View full text Add to dashboard Cite

Kochia is an early emerging weed of increasing concern across the Great Plains region of the United States due to the evolution of resistance to herbicides. Greenhouse studies were conducted to confirm and characterize the level of glyphosate and acetolactate synthase (ALS)-inhibiting herbicide resistance in kochia biotype collected from a field in Sheridan County in Nebraska. The response of kochia biotype to 9 rates (0 to 16×) of tribenuron and glyphosate was evaluated in a whole plant dose-response bioassay. On the basis of the values at the 90% effective dose (ED 90 ), the putative-resistant kochia biotype had a 6-and 15-fold level of resistance to glyphosate and tribenuron, respectively. Future research will evaluate strategies for the management of glyphosate-and ALS-resistant kochia under field conditions.

show abstract

“…In each year at each location, tumble pigweed control by carfentrazone plus dicamba or 2,4-D treatments was less than all other treatments except bromoxynil (30 to 89%). Mickelson et al (2004) also found inconsistent kochia (Kochia scoparia L.) control by bromoxynil, carfentrazone, or 2,4-D under summer-fallow drought stress conditions.…”

mentioning

confidence: 95%

Symposium Long-term weed management studies in the Pacific Northwest

Young

2004

Weed Science

View full text Add to dashboard Cite

The winter wheat production system of the Pacific Northwest is characterized by severe wind and water erosion and winter annual grass weeds requiring high herbicide input. Since 1985, numerous multi- and interdisciplinary, long-term, large-scale, integrated cropping systems studies have been or are currently being conducted. The primary focus of these studies was on weed biology, ecology, and management, whereas secondary evaluations were on alternative cropping systems, conservation tillage, and fertilizer or herbicide inputs. The 6-yr integrated pest management project, conducted in the high-rainfall zone (> 400 mm), showed for the first time that when weeds were adequately managed, conservation production systems were more profitable than conventional systems. In the intermediate rainfall zone (350 to 400 mm), a recently concluded 6-yr, three-state study integrated single-component research results into a multifaceted approach to managing jointed goatgrass. This project has been used as a model study for other western states and the National Jointed Goatgrass Research Initiative. At present (9 yr thus far), a study is being conducted in the low-rainfall zone (< 350 mm) to examine the feasibility of no-till spring cropping systems in lieu of the highly erosive, weed infested, wheat–fallow system. Because of these projects, the Washington Wheat Commission recognized the importance of long-term, interdisciplinary, cropping systems research and has therefore established an Endowed Chair at Washington State University for direct seed cropping systems research. Federal, national, and regional agencies have used information from these projects for farm plans and pesticide usage.

show abstract

Postharvest Kochia (Kochia scoparia) Management with Herbicides in Small Grains

Cited by 20 publications

References 15 publications

The biology of Canadian weeds. 138. Kochia scoparia (L.) Schrad.

The biology of Canadian weeds. 138. Kochia scoparia (L.) Schrad.

Confirmation of Glyphosate- and Acetolactate Synthase (ALS)-Inhibitor-Resistant Kochia (Kochia scoparia) in Nebraska

Symposium Long-term weed management studies in the Pacific Northwest

Contact Info

Product

Resources

About