Results 121 to 130 of about 738 (163)

Saflufenacil efficacy on horseweed and its interaction with glyphosate

Weed Biology and Management, 2013
Saflufenacil is a new herbicide on the market and its effectiveness on horseweed, several populations of which have evolved resistance to glyphosate, is not clear. In this research, the effect of adjuvants on the control of horseweed with saflufenacil in the field, the effect of the interaction between glyphosate and saflufenacil on glyphosate ...
Vijay Nandula, Krishna Reddy
exaly   +2 more sources

Horseweed Response to Rice Herbicides

Crop Management, 2009
Rice acreage impacted by horseweed has increased in Mississippi in recent years. Rice producers have few options for managing horseweed that survives a burndown herbicide application or emerges between burndown and planting. Field research was conducted over 2 years to determine the efficacy of postemergence rice herbicides against horseweed.
Jason A. Bond, Thomas W. Eubank, Daniel H. Poston   +2 more
exaly   +2 more sources

Paraquat‐Resistant Horseweed Identified in the Mid‐Atlantic States

Crop Management, 2006
In 2003, a small percentage of horseweed (Conyza canadensis) plants survived sequential paraquat applications in a research trial conducted in a commercial field. This research project focused on determining if this horseweed population was resistant to paraquat.
Mark J. VanGessel, Barbara A. Scott, Quintin R. Johnson   +2 more
exaly   +2 more sources

Occurrence of Glyphosate-Resistant Horseweed (Conyza canadensis) Population in China

Agricultural Sciences in China, 2011
Horseweed (Conyza canadensis), an invasive alien weed, is one of the main weeds in orchards in China. Although glyphosate has been used for control of horseweed and many other weeds in orchards for more than 25 years in China, a case of glyphosate-resistant horseweed has not been identified in orchard in China so far despite glyphosate-resistant ...
Sheng Qiang
exaly   +2 more sources

Horseweed

2020
Muhammad Asif Hanif, Rafia Rehman, Haq Nawaz   +2 more
exaly   +2 more sources

Biotic and abiotic factors influence horseweed emergence

Weed Science, 2006
Abstract Factors affecting horseweed emergence are important for management of this weed species, particularly because of the presence of herbicide-resistant biotypes. Horseweed emergence was highly variable and not strongly correlated to soil temperature (r2 = 0.21), air temperature (r2 = 0.45) or rainfall (r2 = 0.32).
Christopher L. Main, Lawrence E. Steckel, Robert M. Hayes, Thomas C. Mueller   +3 more
openaire   +1 more source

Horseweed with Reduced Susceptibility to Glyphosate Found in the Czech Republic

Journal of Agricultural and Food Chemistry, 2009
The physiological and molecular basis of apparent resistance to glyphosate in horseweed (Conyza canadensis L. Cronq.) plants that had survived being sprayed with the herbicide at Prague-Bubny railway station in the Czech Republic was investigated. For the sake of comparison, plants expected to be susceptible were collected in areas where no herbicides ...
Daniela, Chodová, Jaroslav, Salava, Olga, Martincová, Milena, Cvikrová   +3 more
openaire   +2 more sources

Glyphosate-resistant horseweed from Delaware

Weed Science, 2001
Abstract No-tillage corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] production has been widely accepted in the mid-Atlantic region, favoring establishment of horseweed [Conyza canadensis (L.) Cronq.]. Within 3 yr of using only glyphosate for weed control in continuous glyphosate-resistant soybeans, glyphosate failed to control horseweed in some
openaire   +1 more source

Influence of Tillage on Horseweed,Conyza canadensis

Weed Technology, 1988
Conservation tillage systems for cotton production were monitored for their influence on horseweed populations. Without fall tillage, horseweed became established and was present the following spring. Disking in the fall or spring controlled horseweed for the subsequent cotton crop.
Steven M. Brown, Ted Whitwell
openaire   +1 more source

Emergence and survival of horseweed (Conyza canadensis)

Weed Science, 1997
Horseweed emergence and survival were evaluated in no-tillage soybean and corn at Rosemount, MN, and Ames, IA, from the fall of 1992 through the summer of 1995. Most of the horseweed at both locations emerged in the fall. Winter survival of fall-emerged seedlings ranged from 59 to 91%.
Douglas D. Buhler, Micheal D. K. Owen
openaire   +1 more source