Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean
Jhala, A. J., Malik, M. S. and Willis, J. B. 2015. Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean. Can. J. Plant Sci. 95: 973-981. Acetochlor, an acetamide herbicide, has been used for many years for weed control in several crops...
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| description | Jhala, A. J., Malik, M. S. and Willis, J. B. 2015. Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean. Can. J. Plant Sci. 95: 973-981. Acetochlor, an acetamide herbicide, has been used for many years for weed control in several crops, including soybean. Micro-encapsulated acetochlor has been recently registered for preplant (PP), pre-emergence (PRE), and post-emergence (POST) application in soybean in the United States. Information is not available regarding the sequential application of acetochlor for weed control and soybean tolerance. The objectives of this research were to determine the effect of application timing of micro-encapsulated acetochlor applied in tank-mixture with glyphosate in single or sequential applications for weed control in glyphosate-resistant soybean, and to determine its impact on soybean injury and yields. Field experiments were conducted at Clay Center, Nebraska, in 2012 and 2013, and at Waverly, Nebraska, in 2013. Acetochlor tank-mixed with glyphosate applied alone PP, PRE, or tank-mixed with flumioxazin, fomesafen, or sulfentrazone plus chlorimuron provided 99% control of common waterhemp, green foxtail, and velvetleaf at 15 d after planting (DAP); however, control declined to ≤40% at 100 DAP. Acetochlor tank-mixed with glyphosate applied PRE followed by early POST (V2 to V3 stage of soybean) or late POST (V4 to V5 stage) resulted in ≥90% control of common waterhemp and green foxtail, reduced weed density to ≤2 plants m-2 and biomass to ≤12 g m-2, and resulted in soybean yields >3775 kg ha-1. The sequential applications of glyphosate plus acetochlor applied PP followed by early POST or late POST resulted in equivalent weed control to the best herbicide combinations included in this study and soybean yield equivalent to the weed free control. Injury to soybean was |
| doi_str_mv | 10.1139/CJPS-2014-422 |
| format | Article |
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J., Malik, M. S. and Willis, J. B. 2015. Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean. Can. J. Plant Sci. 95: 973-981. Acetochlor, an acetamide herbicide, has been used for many years for weed control in several crops, including soybean. Micro-encapsulated acetochlor has been recently registered for preplant (PP), pre-emergence (PRE), and post-emergence (POST) application in soybean in the United States. Information is not available regarding the sequential application of acetochlor for weed control and soybean tolerance. The objectives of this research were to determine the effect of application timing of micro-encapsulated acetochlor applied in tank-mixture with glyphosate in single or sequential applications for weed control in glyphosate-resistant soybean, and to determine its impact on soybean injury and yields. Field experiments were conducted at Clay Center, Nebraska, in 2012 and 2013, and at Waverly, Nebraska, in 2013. Acetochlor tank-mixed with glyphosate applied alone PP, PRE, or tank-mixed with flumioxazin, fomesafen, or sulfentrazone plus chlorimuron provided 99% control of common waterhemp, green foxtail, and velvetleaf at 15 d after planting (DAP); however, control declined to ≤40% at 100 DAP. Acetochlor tank-mixed with glyphosate applied PRE followed by early POST (V2 to V3 stage of soybean) or late POST (V4 to V5 stage) resulted in ≥90% control of common waterhemp and green foxtail, reduced weed density to ≤2 plants m-2 and biomass to ≤12 g m-2, and resulted in soybean yields >3775 kg ha-1. The sequential applications of glyphosate plus acetochlor applied PP followed by early POST or late POST resulted in equivalent weed control to the best herbicide combinations included in this study and soybean yield equivalent to the weed free control. Injury to soybean was <10% in each of the treatments evaluated. Micro-encapsulated acetochlor can be a good option for soybean growers for controlling grasses and small-seeded broadleaf weeds if applied in a PRE followed by POST herbicide program in tank-mixture with herbicides of other modes of action.</description><identifier>ISSN: 0008-4220</identifier><identifier>ISSN: 1918-1833</identifier><identifier>EISSN: 1918-1833</identifier><identifier>DOI: 10.1139/CJPS-2014-422</identifier><language>eng</language><publisher>Canadian Science Publishing</publisher><subject>Abutilon theophrasti ; Acetamide ; acetochlor ; Acétamide ; Amaranthus tuberculatus ; application timing ; applications séquentielles ; biomass ; biomasse des mauvaises herbes ; broadleaf weeds ; chlorimuron ; crop tolerance ; crop yield ; crops ; field experimentation ; flumioxazin ; fomesafen ; gestion de la résistance ; glyphosate ; grasses ; growers ; herbicide resistance ; herbicides post-levée ; herbicides résiduels ; mechanism of action ; microencapsulation ; mélange en citerne ; planting ; post-emergence herbicides ; residual herbicides ; resistance management ; sequential applications ; soybeans ; sulfentrazone ; tank-mixture ; tolérance des cultures ; weed biomass ; weed control ; Weed Science</subject><ispartof>Canadian journal of plant science, 2015-09, Vol.95 (5), p.973-981</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Jhala, Amit J</creatorcontrib><creatorcontrib>Malik, Mayank S</creatorcontrib><creatorcontrib>Willis, John B</creatorcontrib><title>Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean</title><title>Canadian journal of plant science</title><description>Jhala, A. J., Malik, M. S. and Willis, J. B. 2015. Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean. Can. J. Plant Sci. 95: 973-981. Acetochlor, an acetamide herbicide, has been used for many years for weed control in several crops, including soybean. Micro-encapsulated acetochlor has been recently registered for preplant (PP), pre-emergence (PRE), and post-emergence (POST) application in soybean in the United States. Information is not available regarding the sequential application of acetochlor for weed control and soybean tolerance. The objectives of this research were to determine the effect of application timing of micro-encapsulated acetochlor applied in tank-mixture with glyphosate in single or sequential applications for weed control in glyphosate-resistant soybean, and to determine its impact on soybean injury and yields. Field experiments were conducted at Clay Center, Nebraska, in 2012 and 2013, and at Waverly, Nebraska, in 2013. Acetochlor tank-mixed with glyphosate applied alone PP, PRE, or tank-mixed with flumioxazin, fomesafen, or sulfentrazone plus chlorimuron provided 99% control of common waterhemp, green foxtail, and velvetleaf at 15 d after planting (DAP); however, control declined to ≤40% at 100 DAP. Acetochlor tank-mixed with glyphosate applied PRE followed by early POST (V2 to V3 stage of soybean) or late POST (V4 to V5 stage) resulted in ≥90% control of common waterhemp and green foxtail, reduced weed density to ≤2 plants m-2 and biomass to ≤12 g m-2, and resulted in soybean yields >3775 kg ha-1. The sequential applications of glyphosate plus acetochlor applied PP followed by early POST or late POST resulted in equivalent weed control to the best herbicide combinations included in this study and soybean yield equivalent to the weed free control. Injury to soybean was <10% in each of the treatments evaluated. Micro-encapsulated acetochlor can be a good option for soybean growers for controlling grasses and small-seeded broadleaf weeds if applied in a PRE followed by POST herbicide program in tank-mixture with herbicides of other modes of action.</description><subject>Abutilon theophrasti</subject><subject>Acetamide</subject><subject>acetochlor</subject><subject>Acétamide</subject><subject>Amaranthus tuberculatus</subject><subject>application timing</subject><subject>applications séquentielles</subject><subject>biomass</subject><subject>biomasse des mauvaises herbes</subject><subject>broadleaf weeds</subject><subject>chlorimuron</subject><subject>crop tolerance</subject><subject>crop yield</subject><subject>crops</subject><subject>field experimentation</subject><subject>flumioxazin</subject><subject>fomesafen</subject><subject>gestion de la résistance</subject><subject>glyphosate</subject><subject>grasses</subject><subject>growers</subject><subject>herbicide resistance</subject><subject>herbicides post-levée</subject><subject>herbicides résiduels</subject><subject>mechanism of action</subject><subject>microencapsulation</subject><subject>mélange en citerne</subject><subject>planting</subject><subject>post-emergence herbicides</subject><subject>residual herbicides</subject><subject>resistance management</subject><subject>sequential applications</subject><subject>soybeans</subject><subject>sulfentrazone</subject><subject>tank-mixture</subject><subject>tolérance des cultures</subject><subject>weed biomass</subject><subject>weed control</subject><subject>Weed Science</subject><issn>0008-4220</issn><issn>1918-1833</issn><issn>1918-1833</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNotkD1PwzAQhi0EEqUwMuMdBew4cZwRVXyqEkgtYrQuyaU1cu1gp0P-PY5guvdePXfDQ8g1Z3eci_p-9faxyXLGi6zI8xOy4DVXGVdCnJIFY0zNNTsnFzF-p7Xiii3I8Quxo613Y_CWgks5-IGO3mIA1yL1PT2Y1GXoWhji0cKYDqDF0bd76wOFYbAmVRF_juhGA9ZO1Di6s9Ow9zHhWcBo4ghupNFPDYK7JGc92IhX_3NJtk-P29VLtn5_fl09rLNGMpFVTd1h1aq-6SUUqECqgkGZdwoYMFmCwLKRrSpUiUXioFJMYiU7kWOHvBdLcvP3tgevYRdM1J-bJEgyxmulmEjE7R_RGO8d6iGYA4RJc6ZnpXpWqmelOrkTv-cSasM</recordid><startdate>201509</startdate><enddate>201509</enddate><creator>Jhala, Amit J</creator><creator>Malik, Mayank S</creator><creator>Willis, John B</creator><general>Canadian Science Publishing</general><general>Agricultural Institute of Canada</general><scope>FBQ</scope></search><sort><creationdate>201509</creationdate><title>Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean</title><author>Jhala, Amit J ; Malik, Mayank S ; Willis, John B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b603-7b9de7c8fbf6a4e8a6840a52d8a0a065a3e5b6c8485e47c8a7806e76d32ede1f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Abutilon theophrasti</topic><topic>Acetamide</topic><topic>acetochlor</topic><topic>Acétamide</topic><topic>Amaranthus tuberculatus</topic><topic>application timing</topic><topic>applications séquentielles</topic><topic>biomass</topic><topic>biomasse des mauvaises herbes</topic><topic>broadleaf weeds</topic><topic>chlorimuron</topic><topic>crop tolerance</topic><topic>crop yield</topic><topic>crops</topic><topic>field experimentation</topic><topic>flumioxazin</topic><topic>fomesafen</topic><topic>gestion de la résistance</topic><topic>glyphosate</topic><topic>grasses</topic><topic>growers</topic><topic>herbicide resistance</topic><topic>herbicides post-levée</topic><topic>herbicides résiduels</topic><topic>mechanism of action</topic><topic>microencapsulation</topic><topic>mélange en citerne</topic><topic>planting</topic><topic>post-emergence herbicides</topic><topic>residual herbicides</topic><topic>resistance management</topic><topic>sequential applications</topic><topic>soybeans</topic><topic>sulfentrazone</topic><topic>tank-mixture</topic><topic>tolérance des cultures</topic><topic>weed biomass</topic><topic>weed control</topic><topic>Weed Science</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jhala, Amit J</creatorcontrib><creatorcontrib>Malik, Mayank S</creatorcontrib><creatorcontrib>Willis, John B</creatorcontrib><collection>AGRIS</collection><jtitle>Canadian journal of plant science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jhala, Amit J</au><au>Malik, Mayank S</au><au>Willis, John B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean</atitle><jtitle>Canadian journal of plant science</jtitle><date>2015-09</date><risdate>2015</risdate><volume>95</volume><issue>5</issue><spage>973</spage><epage>981</epage><pages>973-981</pages><issn>0008-4220</issn><issn>1918-1833</issn><eissn>1918-1833</eissn><abstract>Jhala, A. J., Malik, M. S. and Willis, J. B. 2015. Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean. Can. J. Plant Sci. 95: 973-981. Acetochlor, an acetamide herbicide, has been used for many years for weed control in several crops, including soybean. Micro-encapsulated acetochlor has been recently registered for preplant (PP), pre-emergence (PRE), and post-emergence (POST) application in soybean in the United States. Information is not available regarding the sequential application of acetochlor for weed control and soybean tolerance. The objectives of this research were to determine the effect of application timing of micro-encapsulated acetochlor applied in tank-mixture with glyphosate in single or sequential applications for weed control in glyphosate-resistant soybean, and to determine its impact on soybean injury and yields. Field experiments were conducted at Clay Center, Nebraska, in 2012 and 2013, and at Waverly, Nebraska, in 2013. Acetochlor tank-mixed with glyphosate applied alone PP, PRE, or tank-mixed with flumioxazin, fomesafen, or sulfentrazone plus chlorimuron provided 99% control of common waterhemp, green foxtail, and velvetleaf at 15 d after planting (DAP); however, control declined to ≤40% at 100 DAP. Acetochlor tank-mixed with glyphosate applied PRE followed by early POST (V2 to V3 stage of soybean) or late POST (V4 to V5 stage) resulted in ≥90% control of common waterhemp and green foxtail, reduced weed density to ≤2 plants m-2 and biomass to ≤12 g m-2, and resulted in soybean yields >3775 kg ha-1. The sequential applications of glyphosate plus acetochlor applied PP followed by early POST or late POST resulted in equivalent weed control to the best herbicide combinations included in this study and soybean yield equivalent to the weed free control. Injury to soybean was <10% in each of the treatments evaluated. Micro-encapsulated acetochlor can be a good option for soybean growers for controlling grasses and small-seeded broadleaf weeds if applied in a PRE followed by POST herbicide program in tank-mixture with herbicides of other modes of action.</abstract><pub>Canadian Science Publishing</pub><doi>10.1139/CJPS-2014-422</doi><tpages>9</tpages></addata></record> |
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| subjects | Abutilon theophrasti Acetamide acetochlor Acétamide Amaranthus tuberculatus application timing applications séquentielles biomass biomasse des mauvaises herbes broadleaf weeds chlorimuron crop tolerance crop yield crops field experimentation flumioxazin fomesafen gestion de la résistance glyphosate grasses growers herbicide resistance herbicides post-levée herbicides résiduels mechanism of action microencapsulation mélange en citerne planting post-emergence herbicides residual herbicides resistance management sequential applications soybeans sulfentrazone tank-mixture tolérance des cultures weed biomass weed control Weed Science |
| title | Weed control and crop tolerance of micro-encapsulated acetochlor applied sequentially in glyphosate-resistant soybean |
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