Results 171 to 180 of about 11,191 (218)
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Non‐dicamba‐resistant soybean response to multiple dicamba applications
Agronomy Journal, 2022AbstractThe rapid adoption of dicamba (3,6‐dichloro‐2‐methoxybenzoic acid)‐resistant (DR) soybean [Glycine max (L.) Merr.] resulted in an increase of post‐emergent dicamba applications during the soybean‐growing season, resulting in off‐target movement and injury to non‐DR soybean. Field trials were established in Manhattan, KS, in 2018 and 2019 and in
Tyler Meyeres +4 more
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Weed Science, 1979
Factors influencing dicamba drift, especially vapor drift, were examined in field and growth chamber studies. In field experiments, potted soybeans[Glycine max(L.) Merr.]. exposed to vapors arising from corn (Zea maysL.) foliarly treated with the sodium (Na), dimethylamine (DMA), diethanolamine (DEOA), orN-tallow-N,N1,N1-trimethyl-1,3-diaminopropane ...
Richard Behrens, W. E. Lueschen
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Factors influencing dicamba drift, especially vapor drift, were examined in field and growth chamber studies. In field experiments, potted soybeans[Glycine max(L.) Merr.]. exposed to vapors arising from corn (Zea maysL.) foliarly treated with the sodium (Na), dimethylamine (DMA), diethanolamine (DEOA), orN-tallow-N,N1,N1-trimethyl-1,3-diaminopropane ...
Richard Behrens, W. E. Lueschen
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Applicator exposure to 2,4‐D, dicamba, and a dicamba isomer
Journal of Environmental Science and Health, Part B, 1982Potential respiratory and dermal exposure to applicators were estimated in a ground boom spray application of 2,4-D and dicamba. Time-weighted averages for airborne herbicide residues did not exceed 2.2 microgram/cu.m. in the cabs of application vehicles allowing only minor respiratory exposure. Dermal exposure was important as relatively large amounts
W M, Draper, J C, Street
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Differentially expressed genes in dicamba‐resistant and dicamba‐susceptible biotypes
Weed Biology and Management, 2011In an ongoing effort to investigate the mechanism of auxinic herbicide resistance in Kochia scoparia (kochia), polymerase chain reaction‐based cDNA suppression subtractive hybridization was used to identify genes that are differentially expressed between dicamba‐resistant (HRd) and dicamba‐susceptible (S1) kochia biotypes in response to herbicide ...
BARBARA K. KEITH +2 more
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Use of dicamba-degrading microorganisms to protect dicamba susceptible plant species
Journal of Agricultural and Food Chemistry, 1991Three strains of dicamba-degrading microorganisms were able to reduce the herbicidal activity of dicamba in the rhizosphere quickly enough to allow dicamba susceptible crop species to grow. Pea seedlings planted immediately after inoculation had higher weights over the uninoculated controls at the 0.5 and 4.0 lb/acre rates in growth chamber studies (.)
James P. Krueger +2 more
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EPA revives dicamba registration
C&EN Global Enterprise, 2020On Oct. 27, US Environmental Protection Agency administrator Andrew Wheeler announced that the agency will approve new, 5-year registrations for two dicamba herbicide products: Bayer’s XtendiMax an...
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Weed Science, 2001
Abstract Kochia plants resistant (R) to field rates of dicamba were characterized for their frequency of occurrence and levels of resistance and for the physiological fate of applied 14C-dicamba. Of 167 randomly sampled fields and seven fields identified by producers to contain R kochia, 19 contained plants that produced 1% or more R progeny.
Harwood J. Cranston +5 more
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Abstract Kochia plants resistant (R) to field rates of dicamba were characterized for their frequency of occurrence and levels of resistance and for the physiological fate of applied 14C-dicamba. Of 167 randomly sampled fields and seven fields identified by producers to contain R kochia, 19 contained plants that produced 1% or more R progeny.
Harwood J. Cranston +5 more
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Court revokes dicamba registration
C&EN Global Enterprise, 2020On June 8, the US Environmental Protection Agency canceled the registration of three herbicide products containing the chemical dicamba.
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Agronomy Journal, 1989
AbstractDicamba (3,6‐dichloro‐2‐methoxybenzoic acid) effectively controls many dicotyledonous weeds, but nontarget species such as soybean [Glycine max (L.) Merrill) are susceptible to spray or vapor drift. Field studies were conducted on a Canfield silt loam (fineloamy, mixed, mesic Aquic Fragiudalf) soil to determine the response of ‘Elf’ and ...
J. D. Weidenhamer +2 more
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AbstractDicamba (3,6‐dichloro‐2‐methoxybenzoic acid) effectively controls many dicotyledonous weeds, but nontarget species such as soybean [Glycine max (L.) Merrill) are susceptible to spray or vapor drift. Field studies were conducted on a Canfield silt loam (fineloamy, mixed, mesic Aquic Fragiudalf) soil to determine the response of ‘Elf’ and ...
J. D. Weidenhamer +2 more
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Natural Sciences Education, 2014
Herbicides are standard weed management tools for producers. This lesson examines the development of herbicide resistant-weeds and research conducted to help predict and prevent this resistance. Discussion on populations of organisms and evolution of these populations is included.
Sandall, Leah +3 more
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Herbicides are standard weed management tools for producers. This lesson examines the development of herbicide resistant-weeds and research conducted to help predict and prevent this resistance. Discussion on populations of organisms and evolution of these populations is included.
Sandall, Leah +3 more
openaire +1 more source