Results 11 to 20 of about 1,944 (162)

Paraquat Resistance of Sumatran Fleabane (Conyza sumatrensis) [PDF]

open access: yesPlanta Daninha, 2019
: In Brazil, some populations of Conyza bonariensis and C. canadensis are glyphosate resistant and there are populations of C. sumatrensis (Sumatran fleabane) presenting multiple resistance to both glyphosate and chlorimuron.
L.H.S. ZOBIOLE   +5 more
doaj   +2 more sources

Glyphosate-Resistant Canada Fleabane Control in Winter Wheat with Postemergence Herbicides

open access: yesInternational Journal of Agronomy, 2020
In recent years, there has been a rapid increase in the number of herbicide-resistant weeds, including glyphosate-resistant (GR) biotypes in Ontario, Canada.
Nader Soltani   +2 more
doaj   +2 more sources

Glyphosate-resistant hairy fleabane documented in the Central Valley [PDF]

open access: yesCalifornia Agriculture, 2008
In recent years, growers and pest consultants have reported poor control of the weed hairy fleabane in some areas of the Central Valley. Hairy fleabane seeds were collected from Esparto, Fresno and Reedley, Calif., and greenhouse-grown seedlings were ...
A Shrestha, B Hanson, K Hembree
doaj   +4 more sources

Application time affects synthetic auxins herbicides in tank-mixture with paraquat on hairy fleabane control

open access: yesRevista Ceres, 2021
Conyza sp. was the first glyphosate-resistant weed in Brazil’s soybean crop. Synthetic auxin herbicides followed by paraquat has improved the hairy fleabane control, and time of day of herbicide application can affect the control efficacy.
Diecson Ruy Orsolin da Silva   +3 more
doaj   +2 more sources

Synergism of the glyphosate and saflufenacil combination for controlling hairy fleabane [PDF]

open access: yesPesquisa Agropecuária Tropical, 2015
In Brazil, hairy fleabane stands out among the main weeds of soybean crops, due to its aggressiveness and resistance to glyphosate. Thus, to avoid the selection of resistant populations to the glyphosate herbicide, the use of other herbicides has become ...
Giliardi Dalazen   +3 more
doaj   +2 more sources

MOLECULAR CHARACTERIZATION OF HAIRY FLEABANE USING RAPD [PDF]

open access: yesPlanta Daninha, 2016
With the increase of glyphosate resistance evolution in hairy fleabane, the knowledge of genetic diversity is essential to assist in the weed management.
D.R.O. SILVA, D. AGOSTINETTO, L. VARGAS
doaj   +3 more sources

Low temperature reverses the resistance to glyphosate in hairy fleabane (Conyza bonariensis) [PDF]

open access: yesJournal of Plant Protection Research, 2019
Environmental factors and the addition of adjuvants to the spray tank mix may interfere with glyphosate efficiency in hairy fleabane control. The objective of this study was to evaluate the effect of air temperature and the addition of ammonium sulfate
Giliardi Dalazen   +3 more
doaj   +2 more sources

Faunistic analysis of pest insects and their natural enemies associated with hairy fleabane in soybean crop [PDF]

open access: yesPesquisa Agropecuária Tropical, 2017
In addition to competing with crops, weeds can provide shelter for arthropods in cropping fields and adjacent areas. This study aimed to investigate the occurrence and population fluctuation of insect pests and their natural enemies associated with hairy
Giliardi Dalazen   +4 more
doaj   +1 more source

Herbicide Resistance in Summer Annual Weeds of Australia’s Northern Grains Region

open access: yesAgronomy, 2023
For more than two decades, glyphosate has been relied on to control summer annual weeds in fallow systems in Australia’s northern grains region. With numerous cases of glyphosate resistance reported in weed species collected from this region, there are ...
John C. Broster   +4 more
doaj   +1 more source

Efficacy of pre-emergence herbicides in controlling Sumatran fleabane (Conyza sumatrensis) in the off-season [PDF]

open access: yes, 2023
Received: February 1st, 2023 ; Accepted: May 7th, 2023 ; Published: May 19th, 2023 ; Correspondence: afmoreirasilva@alumni.usp.brPre-emergence herbicides can be effective in controlling Sumatran fleabane (Conyza sumatrensis [Retz.] E.Walker) at ...
Larini, W.F.   +7 more
core   +1 more source

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