Control of Volunteer Sethoxydim-Resistant Corn (<i>Zea mays</i>) in Soybean (<i>Glycine max</i>)

Young, Bryan G.; Hart, Stephen E.

doi:10.1017/s0890037x00043190

Cited by 23 publications

(30 citation statements)

References 8 publications

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“…In this study, PRE or POST application of imidazolinones resulted in poor control of volunteer corn. In contrast, Young and Hart (1997) reported 70 and 83% control of volunteer corn with imazaquin and imazethapyr plus imazaquin in soybean. More research is required to identify a PRE herbicide with excellent efficacy for volunteer corn control, soybean selectivity as well as to better understand the natural range in tolerance of volunteer corn lines to herbicides.…”

Section: Post Herbicide Studymentioning

confidence: 89%

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Efficacy of Pre-Emergence and Post-Emergence Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn

Chahal¹,

Kruger²,

Blanco‐Canqui³

et al. 2014

JAS

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Glyphosate-resistant corn and soybean are grown in rotations in the Midwest, including Nebraska. Volunteer corn is a problematic weed in soybean fields because it causes harvest problems, reduces yield and seed quality, and potentially harbors insects, pests, and diseases. Several pre-packaged herbicides have been registered in soybean in recent years, but response of volunteer corn to these herbicides has not yet been documented. Greenhouse experiments were conducted to evaluate the response of glufosinate-, glyphosate-, and imidazolinone-resistant volunteer corn to 20 pre-emergence (PRE) and 17 post-emergence (POST) soybean herbicides. Cumulative emergence of volunteer corn was not affected by PRE soybean herbicides compared with the nontreated control regardless of herbicide-resistant trait at 21 days after treatment (DAT). Although comparable with several other treatments, clomazone provided ≥ 90% control of glufosinate-and imidazolinone-resistant volunteer corn at 21 DAT. The POST soybean herbicides were applied when volunteer corn plants were at the 2 to 3 or 5 to 6 leaf stage. The ACCase-inhibiting herbicides, including clethodim, fenoxaprop plus fluazifop, fluazifop, quizalofop, and sethoxydim, provided ≥ 96 and ≥ 85% control of the 2 to 3 or 5 to 6 leaf stage volunteer corn, respectively, regardless of the herbicide-resistance trait at 28 DAT. Glyphosate tank mixed with acifluorfen, chlorimuron-ethyl, or imidazolinones usually provided > 83% control of glufosinate-and imidazolinone-resistant volunteer corn when sprayed at the 2 to 3 leaf stage at 28 DAT, but control was ≤ 71% for the 5 to 6 leaf stage volunteer corn. Similar results were usually reflected in volunteer corn biomass. It is concluded that PRE soybean herbicides partially controlled volunteer corn; therefore, ACCase inhibiting herbicides are the only highly effective option for soybean growers.

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Section: Post Herbicide Studymentioning

confidence: 89%

“…For example, reported > 90% control of volunteer corn with diclofop. Young and Hart (1997) reported > 90% control with sethoxydim or quizalofop. Deen et al (2006) reported that use of a recommended adjuvant significantly improved the effectiveness of ACCase inhibitors, specifically when reduced rates were applied.…”

Section: Post Herbicide Studymentioning

confidence: 99%

Efficacy of Pre-Emergence and Post-Emergence Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn

Chahal¹,

Kruger²,

Blanco‐Canqui³

et al. 2014

JAS

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“…The possibility for yield reduction, interference with harvest, poorer soybean seed quality, and general unattractiveness in a soybean crop qualify volunteer corn as a weed (Andersen 1976;Young and Hart 1997). Volunteer corn has been proven to reduce soybean yields because of interspecific competition (Andersen et al 1982;Beckett and Stoller 1988;Zimdahl 2004).…”

mentioning

confidence: 99%

“…Many ACCase graminicides effectively control volunteer corn, including diclofop (Andersen 1976;Andersen et al 1982), sethoxydim, quizalofop (Young and Hart 1997), fluazifop (Beckett and Stoller 1988), clethodim, and fenoxaprop (Deen et al 2006). One of the difficulties in convincing producers to incorporate these herbicides in soybean production is that at current prices, the addition of these herbicides double or triple herbicide costs compared with glyphosate alone (Johnson et al 2015).…”

mentioning

confidence: 99%

Glufosinate Antagonizes Clethodim Control of Goosegrass (Eleusine indica)

et al. 2005

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Because of a previously reported antagonism of clethodim activity by other herbicides, greenhouse experiments were conducted to determine goosegrass control with clethodim and glufosinate postemergence alone, in tank mixtures, and as sequential treatments. Herbicide treatments consisted of glufosinate at 0, 290, or 410 g ai/ha and clethodim at 0, 105, or 140 g ai/ha, each applied alone, in all possible combinations of the above application rates, or sequentially. Glufosinate at either rate alone controlled goosegrass at the two- to four-leaf growth stage <44%, and control was less for goosegrass at the one- to two- and four- to six-tiller growth stages. Clethodim controlled two- to four-leaf and one- to two-tiller goosegrass 91 and 99% at application rates of 105 and 140 g/ha, respectively, and controlled four- to six-tiller goosegrass 68 and 83% at application rates of 105 and 140 g ai/ha, respectively. All tank mixtures of glufosinate with clethodim reduced goosegrass control at least 52 percentage points when compared to the control with clethodim alone. Glufosinate at 290 or 410 g/ha when applied sequentially 7 or 14 d prior to clethodim reduced goosegrass control at least 50 percentage points compared to the control obtained with clethodim applied alone. Clethodim at rates of 105 or 140 g/ha when applied 7 or 14 d prior to glufosinate controlled goosegrass equivalent to the control obtained with each respective rate of clethodim applied alone at the two- to four-leaf and one- to two-tiller growth stage. Clethodim should be applied to goosegrass no larger than at the one- to two-tiller growth stage at least 7 d prior to glufosinate application or 14 d after a glufosinate application for effective goosegrass control.

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“…Controlling volunteer corn in soybean has been a challenge both prior to, and after the introduction of HR hybrid corn, yet multiple chemical options are available with adequate efficacy, including clethodim, diclofop, quizalofop-p-ethyl, fenoxaprop-p-ethyl, sethoxydim, and fluazifop-p-ethyl [5,[20][21][22][23] to control glyphosate-resistant (GR) volunteer corn in soybean [22]. Control of volunteer corn was dose dependent, with the lowest doses of clethodim, fenoxaprop-p-ethyl, and fluazifop-p-butyl resulting in inadequate control of volunteer corn (less than 80% control on a 0%-100% control scale).…”

Section: Control Options For Volunteer Cornmentioning

confidence: 99%

The Impact of Volunteer Corn on Crop Yields and Insect Resistance Management Strategies

2013

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Volunteer corn (VC) has reemerged as a problematic weed in corn/soybean rotational cropping systems. This reemergence and increasing prevalence of volunteer corn has been correlated to an increased adoption of herbicide-resistant (HR) corn hybrids and the adoption of conservation tillage. Since the introduction of HR crops, control options, weed/crop competition, and other concerns (i.e., insect resistance management of Bt traits) have increased the amount of attention that volunteer corn is receiving. The objective of this review is to discuss what is known about VC prior to and after the introduction of HR crops, and to discuss new information about this important weed.

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Control of Volunteer Sethoxydim-Resistant Corn (Zea mays) in Soybean (Glycine max)

Cited by 23 publications

References 8 publications

Efficacy of Pre-Emergence and Post-Emergence Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn

Efficacy of Pre-Emergence and Post-Emergence Soybean Herbicides for Control of Glufosinate-, Glyphosate-, and Imidazolinone-Resistant Volunteer Corn

Glufosinate Antagonizes Clethodim Control of Goosegrass (Eleusine indica)

The Impact of Volunteer Corn on Crop Yields and Insect Resistance Management Strategies

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