A5021546609- Weed Control and Herbicide Applications
- Pesticide and Herbicide Environmental Studies
- Allelopathy and phytotoxic interactions
- Biological Control of Invasive Species
- Growth and nutrition in plants
- Soybean genetics and cultivation
- Plant tissue culture and regeneration
- Insect and Pesticide Research
- Agroforestry and silvopastoral systems
- Soil Management and Crop Yield
- Bioenergy crop production and management
- Cassava research and cyanide
- Agronomic Practices and Intercropping Systems
- Legume Nitrogen Fixing Symbiosis
- Pharmaceutical and Antibiotic Environmental Impacts
- Banana Cultivation and Research
- Nematode management and characterization studies
- Pesticide Residue Analysis and Safety
- Constructed Wetlands for Wastewater Treatment
- Plant and fungal interactions
- Aquatic Ecosystems and Phytoplankton Dynamics
- Insect Pest Control Strategies
- Plant and soil sciences
- Entomopathogenic Microorganisms in Pest Control
Oregon State University
2021-2024
University of Wisconsin–Madison
2021-2022
Universidade Federal dos Vales do Jequitinhonha e Mucuri
2018-2020
The prevalent and repeated use of acetyl-coenzyme A carboxylase (ACCase)-inhibiting herbicides for Bromus tectorum L. control in fine fescue (Festuca spp) grown seed has selected ACCase-resistant B. populations. objectives this study were to (1) evaluate the response nine populations ACCase inhibitors clethodim, sethoxydim, fluazifop-P-butyl, quizalofop-P-ethyl acetolactate synthase (ALS) inhibitor sulfosulfuron (2) characterize resistance mechanisms.Bromus confirmed be resistant...
ABSTRACT The repeated evolution of herbicide resistance in agriculture provides an unprecedented opportunity to understand how organisms rapidly respond strong anthropogenic‐driven selection pressure. We recently identified agricultural populations the grass species Bromus tectorum L. with multiple herbicides. To evolutionary origins and spread resistance, we investigated mechanisms acetolactate synthase (ALS) inhibitors photosystem II inhibitors, two widely used modes action, 49 B....
Abstract BACKGROUND Resistance to acetolactate synthase (ALS)‐inhibiting herbicides has emerged in Amaranthus hybridus populations across Brazil's soybean‐growing regions. To gain insights into the evolutionary origins and spread of resistance, this study (1) investigated ALS inhibitor resistance mechanisms nine A. (2) assessed their genetic diversity, structure, relatedness. RESULTS chlorimuron was associated with two distinct target‐site mutations: Trp‐574‐Leu Asp‐376‐Glu. Population...
Abstract Amid widespread occurrence of herbicide-resistant weeds in the United States, use PRE herbicides and cover crops have resurged once again as important strategies for weed management cropping systems. The objective this experiment was to evaluate length soil residual control from soybean detrimental impact these on crop species using field treated greenhouse bioassays. Greenhouse bioassays were conducted experiments 2018 2019 Arlington Lancaster, WI. consisted imazethapyr,...
Abstract Downy brome ( Bromus tectorum L.) is a difficult species to control in the dryland wheat Triticum aestivum production areas of northeastern Oregon. The selection herbicide-resistant B. populations has further complicated management. A survey growers was conducted 2021 and 2022 understand management practices. included four questions based on growing seasons from 2017 related crop rotation, tillage versus no-tillage, irrigation dryland, herbicide programs. To determine extent...
Abstract: The objective of this work was to evaluate the effects different arrangements eucalyptus plants on morphoanatomical characteristics leaf blades 'Marandu' grass [(Urochloa brizantha (Syn. Brachiaria brizantha)] cultivated in agrosilvopastoral systems. experiment set field conditions a randomized complete block design with four replicates, which plots were represented by planting spacings (12x2 and 12x4 m), subplots, distance between rows (6, 4, 2 m). A control added, composed full...
Abstract The integration of pre‐emergence (PRE) herbicides is an important component sustainable long‐term weed management programs in soybean [ Glycine max (L.) Merr.]. objective this study was to evaluate the efficacy 11 PRE on residual control soybean. Field experiments were conducted 2018 and 2019 at Arlington Lancaster, WI. Herbicide treatments consisted imazethapyr, chlorimuron‐ethyl, cloransulam‐methyl (acetolactate synthase [ALS] inhibitors), metribuzin (photosystem II [PSII]...
ABSTRACT The use of acaricides is the main control method for Tetranychus ludeni (Acari: Tetranychidae) in horticultural crops. This mite has been recorded causing damage to sweet potato (Ipomoea batatas L.). pathogenic fungi an alternative chemical control. objective was evaluate pathogenicity Metarhizium anisopliae (Meetch) Sorok, and Beauveria bassiana (Bals.) Vuill. phytophagous T. plants. Conidial suspensions M. B. bassiana, at concentrations 106 107 con.mL-1 were applied leaves. After...
Contamination of water sources due to herbicide is great concern. Clomazone a pesticide with high contamination potential which could possibility lixiviate streams. Changes caused by residual include flora modifications are generally detrimental for some species. The lack morphological studies performed in aquatic plants exposed herbicide-contaminated environments has encouraged the development our research. For first time, we present study that aimed evaluate leaf injuries visible naked eye...
Abstract Managing winter annual grass weeds has long been a challenge in the dryland regions of Pacific Northwest (PNW) where soft white wheat is grown. The recent development quizalofop-resistant (CoAXium) varieties allows growers to use quizalofop (QP), herbicide that inhibits acetyl-CoA carboxylase (ACCase) for postemergence control. Field experiments were conducted over two growing seasons 2021–2022 and 2022–2023 near Adams, OR, evaluate QP efficacy on feral rye crop safety. Downy brome...
The repeated evolution of herbicide resistance in agriculture provides an unprecedented opportunity to understand how organisms rapidly respond strong anthropogenic-driven selection pressure. In populations the grass species Bromus tectorum L., multiple herbicides has been recently identified. To evolutionary origins and spread resistance, we investigated mechanisms 49 B. acetolactate synthase (ALS) inhibitors photosystem II inhibitors, two widely used modes action. We assessed genetic...
Abstract BACKGROUND Lolium multiflorum Lam. (Italian ryegrass, annual ryegrass) is both a weed and crop in Oregon. Because it commonly managed using chemical controls, herbicide‐resistant populations have evolved within the seed production region. A glyphosate‐resistant population was identified Yamhill County, Oregon, fallow field previously cropped with perennial ryegrass. RESULTS Dose–response studies showed that population, OR12, nine‐fold more resistant to glyphosate than susceptible...
Plants compete for several resources on soil, including water, light and nutrients which can affect crop yield also weeds growth. Under the hypothesis that in different densities weed communities, crops undergo changes their nutritional contents of macro micronutrients, aim this study was to quantify bean plants cultivated increasing (0, 74, 147, 221 295 m-2) effect association (isolated bean, + Urochloa plantaginea, Bidens pilosa plantaginea pilosa). The micronutrients were evaluated....
ABSTRACT: Herbicide volatilization may generate environmental and agricultural problems result in visual or physiological contamination of non-target plant species. Thus, the goal this research was to study fluorescence chlorophyll a weeds fodder plants under effect clomazone form atmospheric waste. The experiment conducted field conditions designed randomized blocks with four replications, 6 x 4 factor scheme, six species: Dolichos lablab, bicolor Sorgum, Urochloa brizantha, Macrotyloma...