Results 81 to 90 of about 1,183 (162)

FIELD EMERGENCE OF HORSEWEED [Conyza canadensis (L.) Cronq.] AND CONTROL UTILIZING TILLAGE AND HERBICIDES [PDF]

open access: yes, 2006
Horseweed has been documented in 70 countries and 40 different crops around the world and is listed as being a problem weed in no-till production systems. Horseweed has developed resistance to many herbicide modes of action including glycine.
Eubank, Thomas William   +1 more
core  

Cereal rye termination method effects on horseweed suppression and herbicide effects on cover crop establishment [PDF]

open access: yes
Thesis (M.S.)--Michigan State University. Crop and Soil Sciences - Master of Science, 2024Field experiments were conducted from 2021-2023 to evaluate how mechanical rolling methods and termination timing of cereal rye affects horseweed (Conyza canadensis
Walz, Claudia Rachel
core   +1 more source

Aspectos biológicos do ácaro Brevipalpus phoenicis vetor da leprose dos citros em plantas de buva (Conyza canadensis) Biological aspects of Brevipalpus phoenicis, a mite vector of citrus leprosis and horseweed (Conyza canadensis)

open access: yesPlanta Daninha, 2012
O ácaro Brevipalpus phoenicis, vetor da leprose dos citros, é uma espécie polífaga que tem ampla gama de hospedeiros alternativos nos pomares cítricos, nos quais se pode manter e/ou incrementar suas populações.
D.J. Andrade   +3 more
doaj   +1 more source

Buva (Conyza bonariensis) resistente ao glyphosate na região sul do Brasil Conyza bonariensis biotypes resistant to the glyphosate in southern Brazil

open access: yesPlanta Daninha, 2007
O glyphosate é um herbicida não-seletivo utilizado para controlar plantas daninhas há mais de 20 anos no Rio Grande do Sul. A buva (Conyza bonariensis) é uma espécie daninha comum nos Estados da região Sul do Brasil e tradicionalmente controlada com uso ...
L. Vargas   +4 more
doaj   +1 more source

Biology, Distribution, and Management of Glyphosate-Resistant Horseweed (AKA Marestail) [PDF]

open access: yes, 2004
The adoption of Roundup Ready crops and no-till practices and reliance on glyphosate has resulted in a serious concern for long-term use of this valuable weed management tool.
Bill Johnson   +3 more
core   +1 more source

Factors affecting glyphosate control of horseweed (Conyza canadensis) and hairy fleabane (Conyza bonariensis) [PDF]

open access: yes, 2009
Experiments were conducted in 2006 and 2007 to determine if growth stage and rate would affect glyphosate control of horseweed and hairy fleabane. The Roundup Weathermax® formulation of glyphosate was applied at 0.5, 1.0, 1.5, and 2.0 lb ai/acre at four ...
Loren Scott Scheufele
core  

Flowers spectral characteristics of the invasive heliophyte species Erigeron canadensis l.

open access: yesВісник Харківського національного університету імені В.Н. Каразіна: Серія Екологія
Purpose. Determination of spectral characteristics of Erigeron canadensis L. flowers to confirm the photoprotective effect of flavonoids and identify the raw material. Methods. The reflectance spectra were obtained in the range of 350–800 nm.
V. S. Fedenko
doaj   +1 more source

Antifungal Activity and Composition of Essential Oils of Conyza canadensis Herbs and Roots

open access: yesThe Scientific World Journal, 2012
Essential oils from herbs and roots of Conyza canadensis (horseweed), collected in Hungary, were obtained by hydrodistillation. The chemical compositions of the oils were analysed by combination of GC and GC/MS.
Katalin Veres   +3 more
doaj   +1 more source

Growth and Seed Production of Horseweed (Conyza canadensis) Populations after Exposure to Postemergence 2,4-D

open access: yes, 2010
Horseweed can be a problematic weed in no-till soybean fields and populations can vary in their response to 2,4-D. The objective of this study was to evaluate the growth and seed production of four horseweed populations after exposure to 2,4-D.
Greg R. Kruger   +3 more
core   +1 more source

Multi-format open-source weed image dataset for real-time weed identification in precision agriculture. [PDF]

open access: yesData Brief, 2023
Rai N   +7 more
europepmc   +1 more source

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