Articles tagged with Pesticides
A University of Ottawa review provides the first field-wide summary of how pesticide exposure affects social bee gut microbiotas. The study found that pesticides disturb microbial communities, leading to a loss of benefits and potential decline in bee health and performance.
A large population-based study found a significant association between lifetime workplace exposure to pesticides and an increased risk of COPD. The study, which included over 500,000 participants, controlled for other risk factors and found that even low levels of pesticide exposure were linked to a heightened risk of COPD.
Scientists develop a sensitive electrochemical detector using cerium oxide nanozyme to identify organophosphate pesticides in plants. The method provides an unprecedented wider linear range and a detection limit of 0.06 mmol/L, making it suitable for detecting trace amounts of pesticide residues.
Researchers at Washington University in St. Louis are developing a framework to understand how herbicides interact and drift onto unintended plants, affecting crops and the environment. The study found that genetically modified crop introduction influences herbicide use rates and practices, leading to increased drift.
Scientists have discovered new targets for insecticides by analyzing the structure of potassium channels in Drosophila. The study provides a detailed map of the channel, enabling the design of highly selective and safe insecticides.
A new study found that chronic pesticide exposure has detrimental effects on soft-shell clam growth, condition, and feeding rates. The researchers monitored clams in laboratory conditions over 90 days, exposing them to environmentally relevant concentrations of four pesticides registered for use in forest management.
A new project led by University of Illinois researchers will develop machine learning models to predict the reactivity of thousands of organic contaminants in engineered and natural environments. This will help scientists better model pollutant fate and transport, leading to more accurate contaminant risk assessments.
Scientists from Okayama University have identified the genes that cause pesticide sensitivity in sorghum, a superfood grain. The study reveals that these genes are involved in plant defense mechanisms and could help develop crops that can be grown safely with organophosphate treatment.
The number of wild bees has fallen by 25% since 1990, threatening plant reproduction and food production. Researchers must assume social responsibility to communicate their knowledge and work in transdisciplinary coalitions to halt the decline.
A German study reveals that glyphosate and dozens of other pesticides are spreading through the air for miles into national parks and cities. The analysis was published in a peer-reviewed journal and shows that agricultural toxins like glyphosate are classified as probably carcinogenic to humans by the World Health Organisation.
Researchers have developed a new method to remove micropollution from drinking water by using iron and chlorine to break down carbon-based pollutants. The technique produces only CO2 and salt as by-products, making it a promising solution for purifying contaminated water.
A recent study has identified a nematode attractant in flax seeds, which can be used to develop sustainable and environmentally-friendly agriculture methods. The attractant, consisting of cell wall polysaccharides, is found to contain L-galactose sidechains that are critical for nematode attraction.
A study by Greta Wengert and colleagues found that illegal cannabis farms overlap with habitat ranges of endangered Pacific fisher, threatened Humboldt marten, and northern spotted owl. The researchers mapped 1469 illicit cultivation sites using location data and compared them to habitat distribution models.
Researchers have developed a way to bottle the 'smell of fear' produced by predators to repel and disrupt destructive insects. The odor blend can be used in essential oil diffusers to spread over time across gardens or fields, offering a natural alternative to pesticides.
Long-term simulations show that smart land management, such as organic farming and protected refuge areas, can help stabilize threatened bumblebee species. Climate change is expected to have the strongest total effect on bumblebees, threatening many species.
Researchers at UBCO have developed a data processing technique that expands the effectiveness of fluorescence-based water quality monitoring. This approach addresses the challenge of source-specific models by mapping similarities between water sources, enabling real-time detection of hydrocarbons and pesticides in water.
West Virginia University researchers are working on a project to create a tomato that requires little to no pesticides. They aim to identify pest-resistant genes and make those new varieties available to breeders and farmers. The goal is to develop an environmentally friendly and sustainable crop that reduces pesticide use.
Researchers found that captive-raised monarchs can establish proper orientation using their sense of flight direction after being exposed to sunlight and natural cues. The process takes between 24-48 hours, allowing them to fly in the correct direction once released into the wild.
A recent study has identified discrepancies in World Health Organization (WHO) classifications of pesticide hazards, leading to the continued use of potentially lethal pesticides in developing countries. The researchers propose eliminating all pesticides with fatality rates above five per cent to reduce suicides.
A new study found that exposure to organophosphate pesticides may increase susceptibility to COVID-19 infection by triggering an inflammatory response. The research suggests that people with metabolic diseases or cancer may be particularly at risk due to increased ACE2 receptor expression on the surface of airway cells.
Researchers found that drones were only slightly less expensive per unit area than tractor-mounted boom sprayers for pest-control costs, while also having a slight advantage in daily area coverage. Data envelopment analysis showed that both boom sprayers and UAVs reached maximum or near-maximum efficiency for most paddy areas.
Researchers found that chronic dietary exposure to RNAi pesticides enhances their efficacy in controlling pests, allowing for lower concentrations to be used for effective control. This breakthrough has implications for optimizing dsRNA spray approaches and developing genetically engineered crops with built-in pest control.
A recent study by the University of Sydney found that 64% of the world's arable land is at risk of pesticide pollution. The research highlights concerns about human health and environmental impacts associated with widespread agricultural pesticide use, particularly in regions like Asia and Europe.
CABI-led Plantwise plant clinics help farmers adopt safer alternatives to pesticides, including judicious use of pesticides within Integrated Pest Management (IPM) plans. Farmers who visit plant clinics are more likely to wear protective clothing while working with pesticides, indicating a shift towards more sustainable practices.
A team of researchers used a machine-learning approach to map the genetic and environmental connectivity of Aedes aegypti mosquitoes, a primary vector for diseases such as dengue fever and Zika. The study provides insights into the mosquito's adaptability to new landscapes and expanding range.
A recent CABI study has updated the list of potential biopesticide active ingredients for managing fall armyworm in Africa, with 41 products now registered across 30 countries. The review highlights the efficacy of eight additional biological control agents, including Aspergillus oryzae and thyme oil.
Researchers developed an in vitro and computational model-based approach to identify chemicals affecting male reproductive health without animal tests. The method predicts exposure of fetuses to harmful substances, showing promising results compared to traditional animal tests.
Researchers discovered that mosquitoes carrying Wolbachia bacteria are less susceptible to widely used pesticides. The study found that the bacterial species naturally infecting mosquitoes makes them resistant to three types of pesticide, potentially reducing their use and environmental impact.
Excessive use of pharmaceuticals and pesticides in industrial meat production facilities affects water quality and air pollution. Aerial transport of agrochemicals from feed yards contributes to environmental degradation, posing risks to humans and wildlife.
Scientists are developing new solutions for honeybee colony collapse, a threat to global food security. The University of California's four-campus network will use breeding programs, medications, and monitoring tools to combat the issue.
A bio-pesticide made from safflower and cottonseed oils has been found to work against two-spotted spider mites by preventing their embryo from rotating within its eggshell for hatching. This allows the pesticide to spare the mites' natural predators, making it a promising eco-friendly solution for farmers and gardeners.
The CABI-led Plantwise programme has helped millions of smallholder farmers increase crop-based activity and income by 12-30%. The programme supports over 44 million farmers with plant health knowledge, reducing the likelihood of a household falling below the poverty line by 5%.
Researchers developed a detector that mimics a mosquito's antenna to identify species and sex based on sound patterns. The bioinspired device uses machine learning and speech recognition tools to differentiate between species and sex, offering a potential tool for disease-carrying mosquito identification and selective pesticide use.
Researchers found widespread contamination of English rivers with neurotoxic pesticides fipronil and imidacloprid, exceeding accepted safe limits. The use of pet flea products is a likely source of the contamination, posing a high risk to aquatic ecosystems.
A new disease affecting maize has been discovered by researchers at the University of Göttingen, caused by an aggressive strain of the fungus Trichoderma. This discovery raises concerns about the potential risks of using organic plant protection products in agriculture.
A study by the University of Copenhagen found that Danes associate purity with naturalness, preferring foods with visible mold to those with long shelf lives. This trend suggests a shift in attitudes towards food purity, with consumers prioritizing natural ingredients and visible signs of spoilage.
Researchers found that butylparaben, used in cosmetics, has endocrine disrupting effects on humans. The study proposes using the existing EU guidance document with modifications to identify endocrine disrupting effects of a broader spectrum of chemicals.
Researchers discovered elevated markers associated with heat stress and pesticide exposure in failed queens from B.C., suggesting temperature fluctuations during transportation and potential pesticide effects may contribute to queen bee failure. A diagnostic test is proposed to help beekeepers understand and prevent this issue.
Research suggests that fertilizer and pesticide applications on croplands are the largest source of sulfur in the environment, exceeding peak levels seen during acid rain days. This increase poses risks to mercury levels, soil degradation, and asthma rates in agricultural areas.
A set of reviews concludes that hundreds of studies link widespread health issues including infertility, diabetes, and impaired brain development to hormone disruptors in pesticides, flame retardants, and certain plastics.
A study of Uruguayan children wearing silicone wristbands found an average of 13 pollutants, including industrial and agricultural chemicals banned in the US. The researchers detected pesticides like DDT and brominated flame retardants, highlighting concerns about long-term environmental and health impacts.
Researchers developed the APIStrip tool to sample contaminants in honeybee colonies without disrupting their normal routine. The method uses a polystyrene strip with Tenax to detect up to 442 kinds of pesticides, including residues from beekeepers' treatments and plant protection products.
Research at UC Berkeley reveals pesticides can boost schistosome parasite transmission by affecting snail survival, aquatic predators and algae composition. This increases disease burden in areas with high agricultural agrochemical use, posing a significant threat to public health.
Research has found that nearly all water samples from 15 waterways discharging into the Great Barrier Reef lagoon contained pesticide mixtures, with up to 20 pesticides present in some samples. The study emphasizes the need for improved pesticide management practices among land managers and farmers to reduce losses to waterways.
A new CABI-led study suggests that governments should reallocate subsidies to encourage the use of lower-risk control options like biopesticides. The research also emphasizes the importance of enforcing pesticide regulations and mass media campaigns to inform farmers about recommended pesticides and sustainable management options.
A study found 64 pesticide residues in milkweed, contaminating the main food source for monarch butterflies in the west. Pesticides were present at levels harmful to monarchs and other insects, raising concerns for the already critically small western monarch population.
Research provides basic recommendations for creating pollinator-friendly gardens in urban areas, considering factors such as plant selection and landscape complexity. Key findings highlight the potential of human-managed green spaces to support declining pollinator populations.
A new study by Boston University School of Public Health found detectable levels of DDT and other banned organochlorine pesticides in the blood of over 60% of Detroit-area black women. The chemicals were linked to tobacco, alcohol, and water consumption, posing hormonal and metabolic issues.
A new study by UC Davis finds that California cannabis safety testing costs growers around 10% of the average wholesale price, mainly due to rejected product disposal. Higher testing costs translate into higher prices for the licensed market, posing a risk to unlicensed alternatives.
Consumer awareness and information type significantly impact pollinator-friendly plant purchases. A study found that positive information from trusted sources increases willingness to buy, while neutral or negative info has little effect. Trusted sources include universities, major media outlets, and government agencies.
A trio of researchers argue that Life Cycle Assessment (LCA) studies often overlook vital factors, such as biodiversity and pesticide impacts, when comparing organic and intensive agriculture. They found that LCA rarely accounts for these effects, leading to wrong conclusions about the merits of organic farming.
Researchers found that pesticide-contaminated freshwater bodies support larger snail populations, which can increase the risk of schistosomiasis. The study suggests reducing pesticide use near waterways and improving sewage systems as key measures to mitigate the disease.
A recent study found that bumblebee queens' ability to reproduce and survive is hindered by a lack of sugar in their diets. Queens' fat bodies fail to produce essential enzymes required for metabolism and detoxification from pesticides, leading to reduced lifespans and population decline.
Researchers used a virtual flight simulator to compare the effects of two pesticides on locusts, finding that the newer sulfoxamine pesticide does not impair motion detection ability at low dosages. The study suggests that the pesticide may be safer than current neonicotinoid options for agriculture use.
The proposal aims to implement a holistic, integrated systems-based approach to pesticide regulation, considering dynamic agroecological factors. Current ERA guidelines are decades old and based on assumptions that misrepresent modern ecological systems.
A new study by New York University researchers reveals that flame retardants and pesticides are now the leading causes of IQ loss in children, outweighing heavy metals. The study found that over 1 million children suffered from intellectual disability between 2001 and 2016 due to exposure to these toxic chemicals.
A study found that higher-income households are more likely to irrigate, fertilize, and use pesticides in their yards. Neighborly pressure may also play a role, with those knowing more neighbors more likely to engage in these practices.
Researchers discovered eight SDHI pesticide molecules harming earthworms, bees, and human cells by blocking succinate dehydrogenase activity. The study found these pesticides induce oxidative stress in human cells, leading to cell death, threatening human health.
A Princeton researcher found that pesticide companies lobby for stricter regulations on less profitable products, allowing them to clear the way for more expensive alternatives. This practice has significant economic and public health implications.
A study published in the Journal of the American Heart Association found that on-the-job pesticide exposure raised the risk of heart disease and stroke in Japanese American men. After 34 years of follow-up, no significant link was found between pesticide exposure and cardiovascular disease.