Results 41 to 50 of about 588 (172)

Lixiviação do glyphosate e do imazapyr em solos com diferentes texturas e composição química: II. método analítico Glyphosate and imazapyr leaching in soils with different textures and chemical composition: II. analytical method

Planta Daninha, 1999
Em razão das poucas de informações existente na literatura, sobre a mobilidade do glyphosate e do imazapyr, em solos de baixa atividade, comum em países tropicais, foi conduzido, em laboratório, um estudo sobre a mobilidade vertical desses herbicida s em
Adailson P. de Souza, Hélio T. Prates, Francisco A. Ferreira, Efraim L. Reis, Claudio P. Jordão   +4 more
doaj   +1 more source

Cross-Resistance to Imazapic and Imazapyr in a Weedy Rice (Oryza sativa) Biotype Found in Malaysia [PDF]

Planta Daninha, 2018
: The Clearfield® rice production system is an effective management tool for weedy rice and other weeds in the direct-seeded rice culture. However, if farmers cultivating the Clearfield® rice disregard stewardship recommendations, the industry could face
M. DILIPKUMAR, N.R. BURGOS, T.S. CHUAH, S. ISMAIL   +3 more
doaj   +2 more sources

The Biology, Ecology, Distribution and Management of Two Globally Invasive Weeds: Calotropis procera (Calotrope) and Calotropis gigantea (Giant Calotrope)

Weed Research, Volume 66, Issue 3, May/June 2026.
ABSTRACT Calotropis procera and C. gigantea are emerging as globally invasive plants that can significantly alter ecosystems in areas where they have escaped from attended cultivation. Without effective management, these species can form dense monospecific stands, resulting in severe economic, environmental and social impacts.
Jason Roberts, Kunjithapatham Dhileepan, Singarayer Florentine   +2 more
wiley   +1 more source

The 2024 European Union report on pesticide residues in food

EFSA Journal, Volume 24, Issue 5, May 2026.
Abstract Under European Union legislation (Article 32, Regulation (EC) No 396/2005), the European Food Safety Authority publishes an annual report assessing pesticide residue levels in food. In 2024, 9842 samples were analysed as part of the EU‐coordinated multiannual control programme subset, of which 1.2% were found to be non‐compliant.
European Food Safety Authority (EFSA), Paula Medina Pastor, Luis Carrasco Cabrera, Giulio Di Piazza, Carmen González Ciria   +4 more
wiley   +1 more source

Eficácia e seletividade de herbicidas do grupo das imidazolinonas aplicados em pós-emergência de plantas daninhas monocotiledôneas na cultura do girassol CL Efficacy and selectivity of herbicides from the imidazolinone group applied in post-emergence of monocotyledon weeds on CL sunflower culture

Planta Daninha, 2012
O controle das plantas daninhas, em geral, é realizado pelo uso de herbicidas, porém essa prática é limitada na cultura do girassol, por haver apenas dois produtos registrados para essa cultura (alachlor e trifluralin).
A.C. Francischini, Gizelly, G. Santos, J. Constantin, H. Ghiglione, G.F. Velho, N. Guerra, G.B.P. Braz   +6 more
doaj   +1 more source

Key management practices driving soybean yield variability in lowland fields of southern Brazil

Agronomy Journal, Volume 118, Issue 2, March/April 2026.
Abstract Soybean [Glycine max (L.) Merr.] production in the lowlands of Rio Grande do Sul, Brazil, covers more than 50% of the area traditionally cropped with irrigated rice. However, soybean yields in lowland fields average 3.0 Mg ha−1, which is well below the potential yield (6.2 Mg ha−1) estimated for highland areas.
Eduardo Lago Tagliapietra, Cristian Savegnago, José Eduardo Minussi Winck, Alexandre Ferigolo Alves, Marcos Dalla Nora, Enrico Fleck Tura, Michel Rocha da Silva, Gilnei Forgiarini Uliana, Mauricio Fornalski Soares, Cintia Piovesan Pegoraro, Álvaro de Souza Carnelosso, Jordana Martins Fernandes, Giovana Ghisleni Ribas, Nereu Augusto Streck, Alencar Junior Zanon   +14 more
wiley   +1 more source

Resistance of Echinochloa crusgalli var. mitis to Imazapyr+Imazapic Herbicide and Alternative Control in Irrigated Rice [PDF]

Planta Daninha, 2018
: The introduction of Clearfield® system for irrigated rice production provided an effective management strategy in the selective control of weeds. However, the selection pressure caused by the continuous use of herbicides such as imazapyr+imazapic ...
J.F.L. BONOW, F.P. LAMEGO, A. ANDRES, L.A. AVILA, G.M. TELÓ, K. EGEWARTH   +5 more
doaj   +1 more source

An in vitro Assay for Post‐Emergence Herbicide Screening of Large‐Seedling Weeds: A Case Study With Cryptostegia grandiflora

Weed Research, Volume 66, Issue 2, March/April 2026.
ABSTRACT Early‐stage herbicide discovery often relies on glasshouse assays that can take extended time periods before effects are detected, a limitation that is especially problematic for woody weeds. These pipelines also demand large quantities of candidate compounds at field‐equivalent rates, which are rarely available during early discovery.
Bruna D. Batista, Sarah McGregor, Cody‐Ellen Murray, Timothy J. Vance, Luke W. Guddat, Craig M. Williams, Michelle A. Rafter   +6 more
wiley   +1 more source

Interferência de herbicidas, associados a um análogo de brassinosteroide, no aparato fotossintético de mudas de Eucalyptus grandis Effects of herbicides, associated to a brassinosteroid Analogue, on the photosynthetic apparatus of Eucalyptus grandis seedlings

Planta Daninha, 2009
Avaliaram-se os efeitos da aplicação dos herbicidas imazapyr e glyphosate e as suas interações com um análogo espirostânico da castasterona (BB16) no crescimento de mudas clonais de Eucalyptus grandis.
C.M.M. Silva, M.M.A. Gomes, S.P. Freitas
doaj   +1 more source

Variation in Water‐Use Strategies of Prosopis velutina in Southern Arizona

Ecohydrology, Volume 19, Issue 1, January‐February 2026.
ABSTRACT In semi‐arid regions of the United States, mesquite trees are widely distributed across the landscape and play a pivotal ecological role, influencing hydrological processes and contributing to biodiversity. This is especially true in riparian areas, where understanding the adaptive water‐use strategies of facultative phreatophytes is essential
Collin Gillespie, Gita Bodner, Russell L. Scott, Jia Hu   +3 more
wiley   +1 more source