SAMOA<sup>TM</sup>: one company's approach to herbicide-resistant weed management

Shaner, Dale L.; Feist, David A.; Retzinger, E. James

doi:10.1002/(sici)1096-9063(199711)51:3<367::aid-ps652>3.0.co;2-v

Cited by 14 publications

(6 citation statements)

References 6 publications

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“…Amaranthus species are very sensitive to ALS-inhibiting herbicides and possess characteristics that predispose them to have herbicide resistant biotypes such as high genetic variability, prolific seed production, and efficient pollen and seed distribution (Lovell et al, 1996). The use of soil-applied and POST herbicides with alternative sites of action is necessary to reduce the rate of development of herbicide-resistant weed populations (Shaner et al, 1997).…”

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confidence: 99%

Herbicide Systems for Control of Horse Purslane (Trianthema portulacastrum L.), Smellmelon (Cucumis melo L.), and Palmer Amaranth (Amaranthus palmeri S. Wats) in Peanut

Grichar¹

2008

Peanut Science

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Field studies were conducted during the 2003 through 2005 growing seasons to evaluate soilapplied herbicides alone or in combination with postemergence (POST) herbicides for horse purslane, smellmelon, and Palmer amaranth control in peanut. Pendimethalin alone applied preplant incorporated (PPI) failed to control any of the three weeds (, 70% control). Pendimethalin in combination with diclosulam, followed by imazethapyr applied preemergence (PRE), or followed by either acifluorfen or imazapic applied postemergence (POST) controlled all three weed species at least 80%. The soil-applied herbicides flumioxazin, imazethapyr, S-metolachlor, or dimethenamid applied alone failed to control horse purslane and smellmelon (, 75%). Pendimethalin controlled Palmer amaranth less than 42% while flumioxazin at 0.07 kg/ha or dimethenamid at 1.12 kg/ha controlled Palmer amaranth less than 75%. Imazethapyr alone or pendimethalin applied PPI followed by imazethapyr applied PRE or imazapic applied POST controlled Palmer amaranth at least 99%. Pendimethalin applied PPI was present in all herbicide systems that yielded greater than the untreated check. In addition, 80% or greater control of at least 2 of 3 weed species resulted in the highest yields, with the exception of pendimethalin followed by acifluorfen.

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confidence: 99%

Herbicide Systems for Control of Horse Purslane (Trianthema portulacastrum L.), Smellmelon (Cucumis melo L.), and Palmer Amaranth (Amaranthus palmeri S. Wats) in Peanut

Grichar¹

2008

Peanut Science

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“…The use of soilapplied and POST herbicides with alternative modes of action are recommended to delay the rate of development of herbicide-resistant weed populations (Shaner et al, 1997;Ellis and Griffin, 2002;Craigmyle et al 2013).…”

Section: Resultsmentioning

confidence: 99%

“…Since Amaranthus spp. are sensitive to ALS-inhibiting herbicides and possess characteristics that predispose them to have herbicide resistant biotypes, the use of soil-applied and POST herbicides with alternative sites of action are necessary to reduce the rate of development of herbicide-resistant weed populations (Shaner et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

Weed Control and Peanut (Arachis hypogaea L.) Cultivar Response to Encapsulated Acetochlor

2015

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Field studies were conducted during 2011 and 2012 in the Texas peanut production regions to evaluate encapsulated acetochlor for weed control and cultivar response. Acetochlor alone applied preemergence (PRE) controlled horse purslane, Palmer amaranth, smellmelon, and Texas millet as well as flumioxazin or S-metolachlor. The addition of pendimethalin to either acetochlor, flumioxazin, or S-metolachlor did improve weed control in some instances. In another study comparing the three above mentioned herbicides alone or followed by lactofen postemergence (POST), the addition of lactofen to acetochlor, flumioxazin, or S-metolachlor improved control of smellmelon and Palmer amaranth in some instances but did not affect horse purslane control. In a tolerance study to evaluate potential differences in variety response to acetochlor at 1.26 (1X) and 2.52 kg ai/ha (2X) applied preplant incorporated (PPI), PRE, early postemergence (EPOST), or POST, peanut yield or grade was not affected by either rate of acetochlor or application timing.

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“…Amaranthus species are very sensitive to ALS-inhibiting herbicides and possess characteristics, such as high genetic variability, prolific seed production, and efficient pollen and seed distribution, that predispose them to have herbicide resistant biotypes [63]. The use of soilapplied and POST herbicides with alternative sites of action is necessary to reduce the rate of development of herbicideresistant weed populations [64].…”

Section: Discussionmentioning

confidence: 99%

Weed Control and Peanut Tolerance with Ethalfluralin-Based Herbicide Systems

Grichar¹,

Dotray

2012

International Journal of Agronomy

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Field studies were conducted from 2007 through 2009 to determine weed efficacy and peanut (Arachis hypogaea L.) response to herbicide systems that included ethalfluralin applied preplant incorporated. Control of devil's claw (Proboscidea louisianica (Mill.) Thellung), yellow nutsedge (Cyperus esculentus L.), Palmer amaranth (Amaranthus palmeri S. Wats.), and puncturevine (Tribulus terrestris L.) was most consistent with ethalfluralin followed by either imazapic or imazethapyr applied postemergence. Peanut stunting was 19% when paraquat alone was applied early-postemergence. Stunting increased to greater than 30% when ethalfluralin applied preplant incorporated was followed by S-metolachlor applied preemergence and paraquat applied earlypostemergence. Stunting (7%) was also observed when ethalfluralin was followed by flumioxazin plus S-metolachlor applied preemergence with lactofen applied mid-postemergence. Ethalfluralin followed by paraquat applied early-postemergence reduced peanut yield when compared to the nontreated check. Ethalfluralin applied preplant incorporated followed by imazapic applied mid-postemergence provided the greatest yield (6220 kg/ha). None of the herbicide treatments reduced peanut grade (sound mature kernels plus sound splits) when compared with the nontreated check.

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SAMOA^TM: one company's approach to herbicide-resistant weed management

Cited by 14 publications

References 6 publications

Herbicide Systems for Control of Horse Purslane (Trianthema portulacastrum L.), Smellmelon (Cucumis melo L.), and Palmer Amaranth (Amaranthus palmeri S. Wats) in Peanut

Herbicide Systems for Control of Horse Purslane (Trianthema portulacastrum L.), Smellmelon (Cucumis melo L.), and Palmer Amaranth (Amaranthus palmeri S. Wats) in Peanut

Weed Control and Peanut (Arachis hypogaea L.) Cultivar Response to Encapsulated Acetochlor

Weed Control and Peanut Tolerance with Ethalfluralin-Based Herbicide Systems

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SAMOATM: one company's approach to herbicide-resistant weed management

Cited by 14 publications

References 6 publications

Herbicide Systems for Control of Horse Purslane (Trianthema portulacastrum L.), Smellmelon (Cucumis melo L.), and Palmer Amaranth (Amaranthus palmeri S. Wats) in Peanut

Herbicide Systems for Control of Horse Purslane (Trianthema portulacastrum L.), Smellmelon (Cucumis melo L.), and Palmer Amaranth (Amaranthus palmeri S. Wats) in Peanut

Weed Control and Peanut (Arachis hypogaea L.) Cultivar Response to Encapsulated Acetochlor

Weed Control and Peanut Tolerance with Ethalfluralin-Based Herbicide Systems

Contact Info

Product

Resources

About

SAMOA^TM: one company's approach to herbicide-resistant weed management