Results 61 to 70 of about 730 (164)

Comparing the impacts of patch‐burn grazing on vegetation in two northern tallgrass prairies

Conservation Science and Practice, Volume 7, Issue 10, October 2025.
We evaluated two of the earliest and largest patch‐burn grazing projects in the eastern tallgrass prairie of Minnesota, an ecosystem that has undergone extensive fragmentation and invasion by non‐native species. Our results in grazed and ungrazed plots varied with differences in stocking rate and fire frequency.
Fred S. Harris, Dustin R. J. Graham, Amy E. Kendig   +2 more
wiley   +1 more source

Impact of soybean planting date and row width on weed suppression and yield

Agronomy Journal, Volume 117, Issue 5, September/October 2025.
Abstract Variable weather patterns and extended growing seasons over the last couple of decades have prompted growers to plant soybean [Glycine max (L.) Merr.] earlier than the historical standard. Field experiments were conducted in Michigan over three site‐years to evaluate soybean planting date, row width, and herbicide program on weed suppression ...
Matthew Goddard, Maninder Pal Singh, Christy L. Sprague   +2 more
wiley   +1 more source

Germinação de sementes de Conyza canadensis e C. bonariensis em função da presença de alumínio no substrato Germination of Conyza canadensis and C. bonariensis seeds under presence of aluminum in the substrate

Ciência Rural, 2011
A germinação das sementes pode ser fortemente influenciada pelas condições ambientais, afetando o estabelecimento de comunidades florísticas. As plantas daninhas, apesar das características de rusticidade e capacidade de suas sementes germinarem em ...
Oscar Mitsuo Yamashita, Sebastião Carneiro Guimarães   +1 more
doaj   +1 more source

Herbicidas alternativos para controle de biótipos de Conyza bonariensis e C. canadensis resistentes ao glyphosate Alternative herbicides to control glyphosate-resistant biotypes of Conyza bonariensis and C. canadensis

Planta Daninha, 2010
Após sucessivos anos, aplicações do herbicida glyphosate em pomares de citros no Estado de São Paulo selecionaram biótipos resistentes de Conyza bonariensis e C. canadensis.
M.S. Moreira, M.S.C. Melo, S.J.P. Carvalho, M. Nicolai, P.J. Crhistoffoleti   +4 more
doaj   +1 more source

Glyphosate resistance and EPSPS gene amplification confirmed in a waterhemp (Amaranthus tuberculatus) biotype from Connecticut

Agrosystems, Geosciences &Environment, Volume 8, Issue 2, June 2025.
Abstract Waterhemp (Amaranthus tuberculatus) is an economically important broadleaf weed that threatens corn and soybean production across the United States. A waterhemp biotype (CT_Res [resistant biotype from Connecticut]) surviving multiple glyphosate applications was identified from a corn field in Connecticut (CT). Greenhouse and laboratory studies
Jatinder S. Aulakh, Vipan Kumar, Nathaniel Westrick, Andrew J. Price, Amit J. Jhala   +4 more
wiley   +1 more source

Germinação de sementes de Conyza canadensis e Conyza bonariensis em diferentes condições de temperatura e luminosidade Germination of Conyza canadensis and Conyza bonariensis seeds under different conditions of temperature and light

Planta Daninha, 2011
A buva (Conyza canadensis e C. bonariensis) é uma planta daninha de importância crescente no Brasil. Essas espécies ocorrem em diversas regiões do mundo, sendo importantes infestantes de culturas perenes e anuais sob sistema de semeadura direta, cultivo ...
O.M. Yamashita, S.C. Guimarães
doaj   +1 more source

Selection of rhizobacteria for pre-emergence control of wild poinsettia, horseweed and sourgrass

Científica, 2019
This study aimed to select rhizobacteria isolates for pre-emergence control of three glyphosate-resistant species: horseweed (Conyza sumatrensis), sourgrass (Digitaria insularis), and wild poinsettia (Euphorbia heterophylla). Nineteen strains of Bacillus spp. and thirty-four strains of Pseudomonas spp. were isolated from soil samples from the states of
Cleiton Burnier de Oliveira, Bruno Sérgio Vieira, Gustavo Mendes Espíndola, Carine Resende Cardoso   +3 more
openaire   +2 more sources

Assessing impacts of drought on weed communities in the Great Lakes region

Weed Research, Volume 65, Issue 3, May/June 2025.
Abstract Drought can alter weed occurrence, interference with crops, and act as ecological filters altering community structure. Precipitation patterns in the Great Lakes region of the United States are predicted to vary due to climate change, and understanding the impact of drought on weed communities can support effective management practices.
Ednaldo A. Borgato, Allyson M. Smith, Erin E. Burns   +2 more
wiley   +1 more source

Molecular identification of phytoplasmas associated with some weeds in West Azarbaijan province, Iran

Acta Agriculturae Slovenica, 2016
During field surveys in 2013 and 2014, about 14 weed plants showing phytoplasma diseases symptoms including yellowing and witches’broom were collected and tested by polymerase chain reaction (PCR) using universal primers for 16SrRNA starting by primer ...
Samaneh ZIBADOOST, Mina RASTGOU
doaj   +1 more source

Cereal rye biomass effects on giant ragweed suppression inform management decisions

Agrosystems, Geosciences &Environment, Volume 8, Issue 1, March 2025.
Abstract Giant ragweed (Ambrosia trifida L.) has become one of the most troublesome weeds across the US Midwest partially due to its early emergence, high competitiveness, and herbicide resistance evolution. This study aimed to determine the amount of cereal rye (Secale cereale L.) biomass needed to suppress giant ragweed establishment and growth.
Guilherme Chudzik, Jose J. Nunes, Nicholas J. Arneson, David E. Stoltenberg, Rodrigo Werle   +4 more
wiley   +1 more source