Results 31 to 40 of about 3,867 (220)

Mapping and Distribution of Torpedograss and Evaluating the Effectiveness of Torpedograss Management Activities in Lake Okeechobee, Florida [PDF]

, 2005
Thousands of hectares of native plants and shallow open water habitat have been displaced in Lake Okeechobee’s marsh by the invasive exotic species torpedograss ( Panicum repens L.).
Brady, Mark, Hanlon, Charles G.
core  

Thirty years of glyphosate‐resistant crops and weeds: Current situation and future prospects

Pest Management Science, EarlyView.
Since 1996, when the first glyphosate‐resistant crop was commercialized and the first resistant weed was reported, resistance has expanded globally. This review analyzes emergence patterns across weed species, crops, regions, resistance mechanisms, and herbicides.
Ricardo Alcántara‐de la Cruz, Yure Marin Guidi, Mariana Ramirez‐Castillo, Fernando Storniolo Adegas, Caio Antonio Carbonari, Edivaldo Domingues Velini, Rafael De Prado, Stephen O. Duke   +7 more
wiley   +1 more source

Summary of Toxicity Studies on Imazapyr

Journal of Pesticide Science, 1997
イマザピルはアメリンカン・サイアナミッド社が開発した多年生及び一年生雑草を対象とする非農耕地用の非選択性除草剤である. またそのユニークな作用特性により1%液剤は多年生雑草を対象とした抑草剤として開発に成功した. イマザピルは各種毒性試験の結果, きわめて安全性の高い薬剤であることが示された. 急性毒性は非常に弱く普通物に相当した. 変異原性, 催奇形性は認められず, 顕著な薬理作用も認められなかった. 眼に対する刺激性, 皮膚に対する弱い刺激性はみられたが, 皮膚感作性は陰性であった. ラットを用いた亜急性毒性試験では, 高用量群 (10,000ppm) の雄ラットで一時的に体重増加抑制, 食餌効率の低下がみられたのみで非常に毒性が低かった.
openaire   +2 more sources

Curva de dissipação de imazapyr em água de drenos de irrigação, após aplicação para controle da taboa Dissipation curve of imazapyr in irrigation water drain subsequently to its application to control cattail

Planta Daninha, 1996
O herbicida sistêmico imazapyr foi usado no controle da taboa (Typha subulata Crespo & Peres-Moreau f.) em drenos de irrigação, como alternativa ao controle mecânico.
H.T. Prates, J.B. Silva, J.D. Fabris, G.A.L. Ferreira, C.E.P. Leite, M.J. Batista   +5 more
doaj   +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

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

Lixiviação de glyphosate e imazapyr em solos com diferentes texturas e composição química: I - método do bioensaio Glyphosate and imazapyr leaching in soils with different textures and chemical composition: I - bioassay method

Planta Daninha, 2000
A mobilidade dos herbicidas no perfil do solo é influenciada por vários processos, tais como, retenção, transformação e transporte. O conhecimento destes fenômenos é fundamental para a perfeita compreensão do destino de tais produtos no ambiente.
Adailson P. de Souza, Francisco A. Ferreira, Antônio A. da Silva, Hugo A. Ruiz, Hélio T. Prates   +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

Resposta do arroz irrigado a herbicidas em função do sombreamento e da inundação do solo

Revista de Ciências Agroveterinárias, 2023
A existência de uma ampla diversidade de plantas daninhas faz com que seja necessário a utilização de manejo adequado, a fim de não comprometer a produtividade da cultura.
Carlos Vieira, Elison Diego de Souza, Mateus Henrique Scariot, Lariane Fontana de Freitas, Diogo Luiz Fruet, Naiara Guerra, Antônio Mendes de Oliveira Neto   +6 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