Results 41 to 50 of about 835 (196)

Climatic Constraints to the Potential of Microsphaeropsis amaranthi as a Bioherbicide for Common Waterhemp [PDF]

Phytopathology®, 2006
The fungal plant pathogen Microsphaeropsis amaranthi is a candidate bioherbicide for the control of weedy Amaranthus species since it grows and sporulates readily in culture, is a pathogen of a number of important weed species, and is host-restricted to the family Amaranthaceae.
David A, Smith, David A, Doll, Daljit, Singh, Steven G, Hallett   +3 more
openaire   +2 more sources

Distinct Detoxification Mechanisms Confer Resistance to Mesotrione and Atrazine in a Population of Waterhemp       [PDF]

Plant Physiology, 2013
Abstract Previous research reported the first case of resistance to mesotrione and other 4-hydroxyphenylpyruvate dioxygenase (HPPD) herbicides in a waterhemp (Amaranthus tuberculatus) population designated MCR (for McLean County mesotrione- and atrazine-resistant).
Rong, Ma, Shiv S, Kaundun, Patrick J, Tranel, Chance W, Riggins, Daniel L, McGinness, Aaron G, Hager, Tim, Hawkes, Eddie, McIndoe, Dean E, Riechers   +8 more
openaire   +2 more sources

Multiple herbicide-resistant waterhemp control with Group 15 herbicides

Weed Technology, 2023
AbstractWaterhemp has evolved resistance to seven herbicide modes of action in the United States and to five in Canada, which limits weed control options for producers. The objective of this research was to quantify the level and duration of residual control of multiple herbicide-resistant (MHR) waterhemp with five Group 15 herbicides (acetochlor ...
Hannah E. Symington, Nader Soltani, Allan C. Kaastra, David C. Hooker, Darren E. Robinson, Peter H. Sikkema   +5 more
openaire   +1 more source

Evaluation of Acetochlor for Control of Multiple-Herbicide-Resistant Waterhemp (Amaranthus tuberculatus (Moq.) J.D. Sauer) in Ontario Crops [PDF]

, 2023
Twenty-five field trials were conducted in 2021 and 2022 to evaluate multiple-herbicide-resistant waterhemp control with acetochlor. Phaseolus vulgaris dry beans, corn, and soybean were tolerant to acetochlor; tank mixing acetochlor and flumioxazin ...
Symington, Hannah
core   +1 more source

Herbicide Programs for Waterhemp Control in Soybean [PDF]

, 2021
Waterhemp is a dioecious (male and female flowers on separate plants) pigweed with a high genetic diversity. Consequently, this pigweed has a high propensity to adapt to control tactics and has evolved resistance to herbicides from as many as 6 or 7 ...
Jha, Prashant
core  

Influence of Postemergence Dicamba/Glyphosate Timing and Inclusion of Acetochlor as a Layered Residual on Weed Control and Soybean Yield

Frontiers in Agronomy, 2021
Roundup Ready 2 Xtend® [glyphosate- and dicamba-resistant (DR)] soybean is a novel trait option for postemergence (POST) control of herbicide-resistant broadleaf weeds in soybean.
Sarah Striegel, Maxwel C. Oliveira, Ryan P. DeWerff, David E. Stoltenberg, Shawn P. Conley, Rodrigo Werle   +5 more
doaj   +1 more source

Gene Duplication and Aneuploidy Trigger Rapid Evolution of Herbicide Resistance in Common Waterhemp [PDF]

Plant Physiology, 2018
An increase in gene copy number is often associated with changes in the number and structure of chromosomes, as has been widely observed in yeast and eukaryotic tumors, yet little is known about stress-induced chromosomal changes in plants. Previously, we reported that the EPSPS (5-enolpyruvylshikimate-3-phosphate synthase) gene, the molecular target ...
Dal-Hoe Koo, Mithila Jugulam, Karthik Putta, Ivan B. Cuvaca, Dallas E. Peterson, Randall S. Currie, Bernd Friebe, Bikram S. Gill   +7 more
openaire   +2 more sources

Layered‐residual herbicide programs for waterhemp control in glufosinate‐resistant soybean

Crop, Forage & Turfgrass Management, 2023
Core Ideas Glufosinate is an important POST herbicide for waterhemp control in glufosinate‐resistant soybean. The layered‐residual herbicide approach improved season‐long waterhemp control. Glufosinate POST combined with layered soil residual herbicides improved season‐long waterhemp control.
Nicholas J. Arneson, Daniel H. Smith, Ryan P. DeWerff, Maxwel C. Oliveira, Rodrigo Werle   +4 more
openaire   +1 more source

Determination of the Mechanisms of MCPA Resistance in <i>Amaranthus powellii</i>. [PDF]

Plant Direct
ABSTRACT Resistance to 2‐methyl‐4‐chloro‐phenoxyacetic acid (MCPA) was recently confirmed in a population of green pigweed (Amaranthus powellii) from Dresden, Ontario, Canada, with a resistance factor of 4.4. Resistance to synthetic auxin herbicides in Amaranthus species has previously been linked to non‐target site resistance mechanisms with low‐level
Aicklen I, Jugulam M, Gaines T, Kramer W, Laforest M, Robinson D, Sikkema P, Tardif F.   +7 more
europepmc   +2 more sources

Influence of Broadcast Nozzle Design and Weed Density on Dicamba Plus Glyphosate Deposition, Coverage, and Efficacy in Dicamba-Resistant Soybean

Frontiers in Agronomy, 2022
Dicamba injury to sensitive soybean and other broadleaf crops due to drift is a major issue. Dicamba label restrictions have been created to mitigate the off-target movement of dicamba.
Madison D. Kramer, Travis R. Legleiter
doaj   +1 more source