Results 121 to 130 of about 328 (162)
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Environmental influences on common waterhemp germination and tolerance to salinity and herbicides
Agronomy Journal, 2023AbstractThis study investigated the potential of common waterhemp [Amaranthus tuberculatus (Moq.) Sauer] invading the semiarid, salinity‐prone areas of the Central Valley (CV) of California, and its response to commonly used herbicides. Despite its status as one of the worst weeds in the US agriculture, common waterhemp is not very prevalent in ...
Kelsey Galvan +2 more
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Tall Waterhemp Competition in Grain Sorghum
Weed Science, 1969Grain sorghum (Sorghum vulgare Pers.) was grown in combination with varying densities and durations of tall waterhemp (Acnida altissima Riddell) during 1964 and 1965 at Manhattan, Kansas. As waterhemp density and duration increased, sorghum fodder and grain yields were reduced.
K. C. Feltner +2 more
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MANAGEMENT OF WATERHEMP IN GLYPHOSATE-RESISTANT SUGARBEET
American Society of Sugarbeet Technologist, 2013Glyphosate-resistant waterhemp continues to increase in Minnesota and North Dakota, making waterhemp management difficult in glyphosate-resistant sugarbeet. Multiple small-plot sugarbeet research trials have been conducted from 2010 to 2012 investigating management of glyphosate-resistant waterhemp with preplant incorporated, preemergence, and/or ...
Jeff M. Stachler, Aaron L. Carlson
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Common waterhemp (Amaranthus rudis) interference in soybean
Weed Science, 2002Abstract Common waterhemp has become a problem weed species in Midwest soybean production. Determining the critical interference period after soybean and common waterhemp emergence is necessary for the implementation of weed control practices before soybean seed yield loss occurs.
Aaron G. Hager +3 more
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Waterhemp Control in Transgenic and Conventional Corn Varieties
Crop Management, 2004Common waterhemp has become a major problem in the western corn belt. Recent surveys in Missouri indicate that waterhemp is the number one problem weed in corn production. To determine the most effective herbicide combinations and application timings in transgenic and conventional corn varieties for waterhemp control, experiments were conducted at ...
Brent A. Sellers +3 more
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Common waterhemp (Amaranthus rudis) interference in corn
Weed Science, 2004Abstract Knowing the interference potential of common waterhemp in corn could be beneficial in planning waterhemp management strategies. In 2000, 2001, and 2002, field studies were conducted to examine both early- and late-season common waterhemp interference in corn.
Lawrence E. Steckel, Christy L. Sprague
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Management of Glyphosate-resistant Waterhemp
2014Introduction Waterhemp that is no longer effectively controlled by glyphosate is becoming more common in many fields in Iowa. It also is becoming more common for herbicides with other modes of action to be ineffective against this troublesome weed. Farmers need to be aware of management systems to prevent this resistance problem from occurring in their
Fawcett, Jim, Brenneman, Greg
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Multiple-resistant waterhemp control in herbicide-resistant 3 (HT3) soybean
Canadian Journal of Plant Science, 2020Herbicide-resistant (HR) crops, specifically glyphosate-, glufosinate-, and dicamba-resistant (HT3) soybean, will offer producers a new weed management option for the control of some HR weeds in soybean. Four field experiments were conducted near Cottam and on Walpole Island, ON, Canada, during 2017 and 2018 to assess the control of multiple-resistant
Nader Soltani +2 more
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Baseline Sensitivity of Nebraska Waterhemp and Palmer Amaranth to Dicamba and 2,4‐D
Agronomy Journal, 2016The development of dicamba (3,6‐dichloro‐2‐methoxybenzoic acid)‐ and 2,4‐D [(2,4‐dichlorophenoxy) acetic acid]‐resistant soybean [Glycine max (L.) Merr.] will increase the frequency of applying these herbicides to control broadleaf weeds in soybean production systems. We evaluated the sensitivity of randomly selected waterhemp [Amaranthus tuberculatus (
Roberto J. Crespo +3 more
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Tolerance of ozone and drought in common waterhemp (Amaranthus tuberculatus)
Journal of Crop Improvement, 2019Biological invasions in established cropping systems impact biodiversity and agricultural sustainability. Under conditions of multi-year drought and elevated tropospheric ozone (O3), several Amaranthus species have recently become problematic weeds in California. We examined responses of common waterhemp (A. tuberculatus) to 12-h mean O3 exposures of 4,
David A. Grantz +2 more
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