Results 71 to 80 of about 1,412 (198)

Troublesome Palmer Amaranth Expanding Its Range

, 2013
Many people are aware of the problems Palmer amaranth is causing farmers in the mid-south and southeast United States. Palmer amaranth is a close relative to Iowa’s number one weed problem – waterhemp.
Hartzler, Robert, Owen, Michael
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Impact of cover crops on furrow-irrigated rice and Palmer amaranth (Amaranthus palmeri) emergence

Weed Technology
As mid-southern U.S. rice producers continue to adopt furrow-irrigated rice production practices, supplementary management efforts will be vital in combating Palmer amaranth due to the extended germination period provided by the lack of a continual flood.
Tanner A. King, Jason K. Norsworthy, Thomas R. Butts, L. Tom Barber, Gerson L. Drescher, Samuel B. Fernandes, Tristen H. Avent   +6 more
doaj   +1 more source

Herbicide programs for control of a five‐way herbicide resistant waterhemp population in Xtendflex or Enlist E3 soybean

Crop, Forage &Turfgrass Management, Volume 11, Issue 2, December 2025.
Abstract Waterhemp [Amaranthus tuberculatus (Moq.) J.D. Sauer] is one of the most problematic weeds in soybean [Glycine max (L.) Merr.] production in the Midwestern United States. In recent years, the adoption of soybean resistant to dicamba, 2,4‐D, and/or glufosinate have enabled the use of these herbicides to improve control of problematic weeds ...
Claudia R. Bland, Stephen L. Meyers, Mark L. Bernards, William G. Johnson   +3 more
wiley   +1 more source

Palmer Amaranth Update

, 2013
Two new infestations of Palmer amaranth have been identified in Iowa since the initial finding in Harrison County in August. Another Harrison County field with Palmer amaranth was found, approximately 15 miles from the first area near Modale.
Hartzler, Robert
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Response of Corn and Palmer amaranth to Mesotrione [PDF]

, 2018
Mesotrione is a herbicide used for the selective pre- and post-emergence control of a wide range of broadleaf and grass weeds in corn (Zea mays). It inhibits the enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD) which leads to stop biosynthesis of ...
Alkhraissi, Maha, Chaudhari, Sushila, Jugulam, Mithila   +2 more
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Integrated effect of row spacing and herbicide programs on photosynthetically active radiation, control, and seed production of multiple herbicide‐resistant Palmer amaranth in corn

Agrosystems, Geosciences & Environment
Multiple herbicide‐resistant (MHR) Palmer amaranth has been ranked as the most problematic weed in row crop fields in Nebraska. Integration of narrow row spacing with herbicide might augment control of MHR Palmer amaranth.
Ramandeep Kaur, Nevin C. Lawrence, Yeyin Shi, Parminder S. Chahal, Stevan Z. Knezevic, Amit J. Jhala   +5 more
doaj   +1 more source

Glyphosate- and atrazine-resistant Palmer amaranth in New York: Confirmation and Management with Alternative Postemergence Herbicides

Weed Technology
Palmer amaranth is an increasing concern for producers in the northeastern United States. A new Palmer amaranth population (NY_PA) was identified in a soybean field in Ontario County, New York, in 2024.
Max Rieley, Vipan Kumar, Jatinder Aulakh, Mike Stanyard, Sumit Jangra, Jugpreet Singh, Andrew Price   +6 more
doaj   +1 more source

Response of Herbicide-Resistant Palmer Amaranth (Amaranthus palmeri) Accessions to Drought Stress

International Journal of Agronomy, 2013
Palmer amaranth is a very problematic weed in several crops in the southern USA due to its competitive ability and resistance to herbicides representing different mechanisms of action.
Aman Chandi, David L. Jordan, Alan C. York, Jim Burton, Susana R. Milla-Lewis, Jan Spears, Jared R. Whitaker, Randy Wells   +7 more
doaj   +1 more source

Emergence Date Influences Growth and Fecundity of Palmer Amaranth in Cotton

Journal of Cotton Science, 2016
Research was conducted in 2012 and 2013 in Fayetteville, AR to evaluate the impact of Palmer amaranth (Amaranthus palmeri (S.) Wats.) emergence date on plant biomass, height, and seed production as well as the corresponding influence on cotton (Gossypium hirsutum L.) biomass and yield. Palmer amaranth was evaluated in the presence and absence of cotton
Jason K. Norsworthy, Brandon W. Schrage, Tom L. Barber, Lauren M. Schwartz   +3 more
openaire   +1 more source

Cover Crop Seed and Palmer Amaranth

, 2016
Most people are aware of Palmer amaranth seed contamination in native seed mixes. These findings have led to questions about whether cover crop seed might also be a source of Palmer amaranth.
Anderson, Meaghan, Hartzler, Bob
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