Articles tagged with Herbicides
A new University of Arizona study found that exposure to certain pesticides before pregnancy is associated with lower Apgar scores, a measure of newborn health. The study suggests that pesticides can affect the next generation, highlighting the importance of regulating pesticide use to improve maternal and child health.
Researchers analyzed pollinators and fish for changes in behavior after exposure to plant protection products. Exposure to insecticides, herbicides, and fungicides altered nectar processing in honeybees and brood care behavior in zebrafish.
A study found that lignin, a polymer from plant cell walls, can improve the performance of nanoparticles with herbicide. Lignin was subjected to a green process and showed distinct properties, making it suitable for customizing different applications. The substance demonstrated potential for sustainable agricultural pest management.
A new study by Environmental Working Group found that consuming certain fruits and vegetables can increase pesticide levels in people's bodies. The study suggests that everyday food choices can drive significant pesticide exposure and highlights the need for safer food systems.
A recent study published in the journal Weed Science shows electric weed control technologies to be equally effective as herbicides and mechanical control methods. The research found that electric weed control provides a fire hazard risk if dry crop residues are present, but operation in winter or spring poses minimal fire risk.
Researchers found that drones can suppress common reed invasions with over 99% effectiveness, using a single targeted herbicide application. This method provides convenient access and reduces risks of trampling or disturbance, while also minimizing off-target impacts and promoting native vegetation recovery.
A team of researchers has developed a drone-based system to detect dicamba damage in soybean canopies, allowing for early detection and reporting of crop damage at the field scale. The system uses remote sensing technology to identify subtle canopy damage caused by dicamba vapor drift.
A national study found children aged 2-4 years in the US are exposed to a wide range of hazardous chemicals, including phthalates and pesticides, which can interfere with hormone development and immune function. The research emphasizes the need for expanded biomonitoring and stronger regulations to protect children from harmful exposures.
A recent study published in Science found that only a small fraction of potentially environmentally relevant chemicals are monitored. The researchers analyzed large datasets to assess the environmental risks of highly toxic chemicals, highlighting the limitations of current chemical monitoring.
Researchers found that inactive amines used in herbicides could be more important nitrosamine precursors than previously thought, potentially posing serious health risks even at low concentrations. The study suggests shifting trends in herbicide formulation and use necessitate closer examination of these chemicals
A recent study by Cambridge University Press found that remotely piloted aerial application systems (RPAAS) using low-drift nozzles at low spray volumes can achieve weed control levels comparable to ground sprayer applications. This technology shows promise for site-specific herbicide applications in turf.
Researchers found that a combination of preemergence and postemergence herbicide treatments provided the greatest and most consistent weed control in early planted soybean. The study's results suggest that using both PRE and POST treatments can optimize weed control outcomes and yield in early planted soybeans.
Researchers have unlocked the genetic secrets of Palmer amaranth, a weed species that makes farming harder and less profitable. The new genome analysis provides insights into the weeds' ability to detoxify common herbicides and reveals key gene families involved in non-target-site resistance.
A comprehensive global study reveals pesticides are a major contributor to the biodiversity crisis, affecting over 800 species of plants, animals, fungi, and microbes. The research highlights the need for policies and practices to reduce pesticide use, including regenerative agriculture and Integrated Pest Management.
A recent study published in Weed Science shows that seed impact mills can reduce the number of germinable seeds by 87% compared to no-impact mill treatment. The technology damages weed seeds, making them non-viable and reducing seedbank density, which is critical for future herbicide-resistance management.
Researchers unveiled an innovative system that outperforms conventional filtration methods by combining microbial electrochemical technologies with enhanced biodegradation processes. The biofilter demonstrates significant removal of pharmaceuticals and herbicides, altering their chirality to influence toxicity and biodegradability.
A new study found that over half of weedy rice sampled in the southeastern US has become resistant to certain herbicides, including imidazolinone and a newer class of herbicides. The researchers also discovered that individual fields have distinct compositions of weedy rice strains, making management harder.
A new study reveals that glyphosate exposure in mice can cause lasting brain inflammation and accelerate Alzheimer's disease-like pathology, even after a significant pause from exposure. The herbicide's byproducts have been found to accumulate in brain tissue, raising serious concerns about its safety for human populations.
Researchers used machine-vision technology to compare targeted sprays with traditional broadcast applications, saving an average of 28.4-62.4% on postemergence herbicides. This study demonstrates potential for lower herbicide costs and improved environmental stewardship in soybean farming.
A 30-year database analysis shows variable weather reduces the effectiveness of post-emergence herbicides against major corn and soybean weeds. Air temperature, precipitation patterns, and dry/wet conditions all impact herbicide effectiveness, making weed control more difficult for farmers.
Researchers have identified 22 pesticides consistently linked to prostate cancer incidence across US counties, including 2,4-D. Four pesticides are also associated with increased prostate cancer mortality rates.
A new University of Illinois study examines the adoption of robotic weeding technology to fight superweeds, finding that forward-looking management strategies are more effective than myopic approaches. The research suggests that farmers with a long-term perspective on weed resistance will benefit from early adoption of robots.
Researchers developed a new method to analyze interactions between neighboring plant individuals, identifying genes involved in associative resistance. Mixing different plant genotypes reduced herbivore damage by up to 24.8% compared to planting individual genotypes.
New research on genetically modified crops reveals potential environmental impacts, including increased pesticide use, deforestation, and greenhouse gas emissions. The study highlights the need for further research to support sustainable agriculture practices.
Research from the University of Wisconsin-Madison and the University of Illinois Urbana-Champaign reveals that some giant ragweed populations in Wisconsin have evolved resistance to critical post-emergence herbicides. This development limits chemical options for non-GMO soybean growers, potentially forcing them to switch to GMO soybean...
A new research project aims to create a highly effective and selective biological herbicide targeting Palmer amaranth. The researchers will use synthetic biology techniques to develop RNA molecules known as Ribozymes that can influence specific gene expression, eliminating the weed through a specific infection.
A new study reveals that snap bean germplasm has a master switch controlling multiple stress tolerance genes, offering a potential solution to waterhemp and other herbicides. The genomic region responsible for this tolerance acts like an on-and-off switch, with higher expression of certain enzymes and antioxidants in tolerant plants.
Mithila Jugulam has been appointed Co-Editor-in-Chief of Pest Management Science, bringing expertise in weed physiology and molecular biology. She aims to foster interdisciplinary collaboration and innovation, while maintaining the journal's commitment to scientific rigor and editorial integrity.
A new study found that genetically engineered canola plants with pesticide resistance are persisting in roadside populations, but may be losing their engineered genes. Almost a quarter of the feral plants were found to not contain transgenes.
Researchers investigated golfers' potential risks from four common pesticides used on golf course turfgrass. They found that the HQ values from the golfers' exposure indicated little risk to the four pesticides used in this study, suggesting a low risk of adverse effects from exposure.
New research reveals spent coffee grounds can act as an efficient adsorbent of bentazone, a highly neurotoxic herbicide. Activated carbon from spent coffee grounds showed a 70% efficiency in bentazone removal and high sensitivity to pollutants.
Researchers discovered that exposure to atrazine increases intestinal rotation in reverse direction, disrupting metabolism and cellular processes in frog embryos. This finding suggests a potential link between environmental chemicals and human intestinal malrotation.
A new study reveals that Agent Orange damages frontal lobe brain tissue in laboratory rats, causing molecular and biochemical abnormalities similar to early-stage Alzheimer's disease. This research has important implications for the long-term brain health of aging veterans and people exposed to biologically similar herbicides.
The biodegradable sensor, made from plant-based material, can detect pesticide levels in minutes and has the potential to help assure food safety. The study showed that washing and immersion were insufficient to remove residues of pesticides, highlighting the need for reliable detection methods.
Research reveals a single major gene controlling resistance to S-metolachlor in the Stanford, Illinois resistant population of waterhemp. This finding is significant due to the difficulty in studying weed resistance to soil-applied herbicides.
A new study reveals a genetic vulnerability to the herbicide tolpyralate in nearly 50 sweet and field corn lines, with sensitivity increased by adjuvants commonly co-applied with HPPD-inhibitors. The source of the sugary enhancer gene is among the most sensitive genotypes, suggesting widespread potential.
A review article links pesticide exposure to an increased risk of developing Parkinson's disease through alterations in the gut microbiota. The authors recommend reducing or replacing agrochemicals and implementing coordinated efforts to develop standardized biomarkers for gut integrity and microbiome changes.
Researchers found a significant decline in glyphosate's ability to control seven major weed species, with most showing signs of adaptation within two to three years. The study suggests that using a pre-emergence herbicide can significantly improve control and reduce variability of glyphosate over time.
Decades of relying on glyphosate for weed control has led to the development of resistance in multiple weed species, compromising its efficacy. However, combining post-emergence and pre-emergence herbicides can provide consistent weed control, highlighting the need for diverse management programs.
Health experts argue that Health Canada's secrecy on pesticide data hinders constructive public debates and allows the agrochemical industry to influence policy. The Canadian Medical Association Journal calls for transparency in data about pesticides, citing a need to address potential health risks and ensure safe use of these products.
A study by Cornell University found pesticides, herbicides, and fungicides in managed honeybee hives in New York, posing a risk to bee health and the environment. The chemicals, including acaricides and neonics, were detected in nearly all samples, highlighting the need for better protection of pollinators.
Researchers at the University of Illinois have identified a single major gene controlling waterhemp's resistance to S-metolachlor, a widely used soil-applied herbicide. This finding poses a significant challenge for farmers, as it increases the risk of spread and limits effective weed management options.
U of I researchers have developed organic nanozymes that mimic the properties of natural enzymes, exhibiting peroxidase-like activities and detecting glyphosate with adequate accuracy. The OC nanozyme is quicker to produce, cost-effective, non-toxic, and environmentally friendly.
Researchers measured metabolite concentrations of two herbicides in urine samples from Ecuadorian adolescents and found negative associations with attention, memory, and language. Glyphosate was also linked to social perception issues.
A Duke University study found glyphosate, active in Roundup, in high levels of wells supplying drinking water to Sri Lankan communities plagued by chronic kidney disease (CKDu). Elevated fluoride and vanadium also linked to CKDu were discovered. Glyphosate's persistence in hard water poses concerns for exposure.
A study by Cambridge University Press reveals that no-spray buffer zones of 30 meters near riparian areas are critical in protecting waterways from herbicide run-off. The research also found that forest litter retains most of the herbicide mixture, rather than soil.
A new study from the University of Illinois reveals a wealth of untapped diversity in popcorn's genetic code, with over 308,000 variations across the genome. The research may help improve the agronomic performance of the crop and uncover its long history of movement across North America.
Researchers at the University of Adelaide have discovered a failed antibiotic that can effectively kill two of Australia's most problematic weeds, annual ryegrass and wild radish, without harming bacterial or human cells. This finding could lead to faster development of new weed killers, saving farmers billions of dollars each year.
A recent study on buffelgrass control in Arizona's Saguaro National Park highlights the importance of long-term monitoring and surveillance. Low levels of buffelgrass can quickly expand by multiple orders of magnitude, emphasizing the need for sustained efforts to manage its spread.
Researchers found that even low levels of glyphosate herbicide residues harm endophytic microbes in garden strawberry, which promote plant nutrition, disease resistance, and stress tolerance.
A Swansea University research study has evaluated the long-term environmental impacts of different Japanese knotweed management methods. The study found that glyphosate-based foliar spray control is the most sustainable approach, using the least materials and having the lowest economic costs.
A new study by Göttingen University reveals that mechanical weeding and reduced fertilizer usage significantly increase ecosystem multifunctionality and profit in industrial oil palm production. The researchers found no reduction in greenhouse gas emissions with these practices.
Researchers conducted a three-year field study to determine how black swallowwort responds to common controls. The study found that annual applications of glyphosate were effective in reducing aboveground biomass, but less effective in reducing cover and stem densities.
Researchers discovered glyphosate residues in wildflowers near sprayed fields, exposing bees to potential harm. The study highlights the need for further research on glyphosate's impact on bee species and its potential use as a desiccant before harvesting crops.
Research at the University of British Columbia found that intensive agriculture has driven rapid evolutionary change in waterhemp, a North American native plant, turning it into a problematic weed. The study compared genetic samples from modern farms and historical specimens to track evolution over two centuries.
Researchers at Washington State University developed a new method to measure residual herbicides in fruits, vegetables, and their products using nanoparticles. The test is sensitive enough to detect chemicals down to maximum acceptable levels and is validated using traditional testing methods.
A new study found that cover crops grown concurrently with cash crops can effectively reduce weed biomass in California orchards. The researchers discovered that planting cover crops early in the growing season, when adequate moisture is available, results in predictable and abundant plant cover.
A study from Washington University in St. Louis found that amines used in herbicide formulations volatilize, releasing toxic particles into the atmosphere and affecting climate chemistry. The research highlights the importance of understanding amines' role in atmospheric pollution.
A pooled data analysis found that workplace exposure to gases, fumes, and aromatic solvents is associated with a decline in lung capacity. Regular check-ups are recommended for workers in these environments to prevent respiratory illness.
A recent Indiana University study found that high levels of glyphosate in pregnant women were associated with lower birth weights and higher risk of neonatal intensive care unit admissions. The researchers observed a cohort of 187 pregnant women and detected glyphosate in 99% of their urine samples.