Articles tagged with Pest Control
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Researchers at North Carolina State University found that adding nonanal, a chemical used in perfumes, to a pheromone blend increases its effectiveness in mimicking female fall armyworm calls. The discovery could help farmers detect and control fall armyworm populations more effectively.
Researchers have developed a cubic molecule platform that can improve the properties of hydrocarbons like cubane, which was previously overlooked due to limited synthesis. This breakthrough enables the incorporation of nitrogen atoms, facilitating biologically desirable interactions and expanding options for chemists.
A new digital tool, IWM Tool, has been developed to help farmers design and implement integrated weed management strategies, reducing pesticide use by 50% by 2030. The tool provides a user-friendly approach to diversify weed management strategies, fitting specific needs.
Researchers have shed light on the molecular mechanisms allowing beetles to absorb water rectally, a property enabling them to survive in extremely dry environments. This knowledge could be used to develop more targeted and eco-friendly methods to combat beetle species that destroy food production.
A new CABI-led study suggests that biopesticides are more effective and environmentally friendly than chemical pesticides for controlling the fall armyworm. The researchers found that untreated plots showed higher larval density and plant damage, while biopesticide treatments showed lower parasitism rates.
Researchers developed new spiro-pyrazolo quinazoline derivatives with reduced bee toxicity without compromising insecticidal activity. The compounds showed promising results, including one compound with an LD50 value three to four orders of magnitude lower than fipronil.
Scientists have identified horizontally transferred genes in insect genomes as valid targets for selectively killing green peach aphids and whiteflies. Silencing these genes using RNA interference reduces pest survival by up to 40%, with potential expansion to other insects through 'stacking' multiple targets.
Researchers have characterized the tar spot pathogen on a molecular level, revealing its virulence molecules target specific plant organelles. This study advances our understanding of plant-pathogen interactions and contributes to developing disease control strategies.
Scientists at UC Riverside have discovered that volatile repellents containing ammonia and amines can be used to combat insect-borne diseases by disrupting their sense of smell and taste. The research found that these compounds can silence olfactory neurons in mosquitoes, preventing them from detecting human skin odor.
Researchers at Nagoya University discovered that when Ceratocystis ficicola and Fusarium kuroshium fungi are combined, fig saplings experience rapid wilting. The two fungi work together to cause more damage than either one alone, highlighting the importance of considering co-occurring microorganisms in disease control strategies.
A meta-analysis of transcriptome data from aphids and locusts reveals that DNA replication, metabolic processes, and the mitotic cell cycle are enriched in response to crowded conditions. The study also identifies discrepancies with previous research findings, suggesting alternative explanations for gene expression patterns.
A study published in PLoS Genetics reveals the mechanism by which a selfish gene in yeast, wtf4, enables its function using a poison-antidote strategy. This strategy involves the production of poison protein that can kill spores, but is countered by an antidote protein produced only by those spores that inherit the drive allele.
Researchers analyzed over 4,500 documents to understand fungal dispersal across spatial scales. They identified four scales of movement, from microscopic to landscape, and found that climate change affects where fungi reside. More data is needed to understand the biodiversity of fungi and their movement in ecosystems.
Through its Integrated Pest Management program, WVU Extension educates growers on safe techniques, including barriers, insect traps, and predatory insects. The goal is to reduce pesticide use and promote environmentally friendly practices.
Researchers used weather radar to track bird movements and found peak roosting stages shifting earlier due to warmer temperatures. This shift may lead to a shortened pre-migratory season, impacting birds' survival during migration.
Research found that air pollution from diesel exhaust and ozone significantly reduces the reproductive success of parasitic wasps controlling aphids on oilseed rape plants. The pollutants alter plant chemistry, attracting a specific wasp species more successfully.
Researchers discovered that two approved insecticides can damage honey bees' intestinal flora, making them more susceptible to disease. The study highlights the need for rigorous research on pesticide effects on beneficial insects before approval.
Researchers have made a surprising discovery that liquid smoke can enhance plant defense against pests and diseases, leading to new farming practices. The study found that sunflowers grown in soil treated with liquid smoke had larger, thicker, and greener leaves and appeared less prone to pests and disease.
Researchers discover that male spotted lanternflies are strongly attracted to the smell of honeydew produced by male conspecifics, emitting specific sex-attractant profiles. This finding may lead to the development of new pest management tools to reduce the population and spread of this invasive species.
A recent study found that climate change could increase suitable habitat for the brown marmorated stink bug in the US by 70%. The insects are a generalist herbivore, known to feast on nearly 170 different plants, including crops and ornamental plants.
Researchers found the moths originated from the Baja Peninsula and Arizona, with a new subspecies discovered in western North America. The study recommends using synthetic pheromones to control the invasive pest.
Researchers at University of California - Riverside discovered a chemical cocktail in human skin that summons disease-spreading mosquitoes. The combination of carbon dioxide plus two chemicals, 2-ketoglutaric and lactic acids, elicits a scent that attracts female Aedes aegypti mosquitoes, vectors of Zika and other viruses.
UC Riverside scientists are working with Jocelyn Millar to find the avocados weevil pheromone, which could be used to monitor pests and prevent them from mating in orchards. The goal is to reduce damage to fruit and enable growers to use less insecticides.
A global report reveals ladybird species are poorly understood due to human activities, and urgent conservation actions are needed. The research emphasizes the importance of protecting habitats, particularly those that provide overwintering sites for ladybirds.
A newly identified species of Liberibacter, a family of bacteria known for causing citrus greening disease, is rapidly evolving its ability to infect insect hosts. The research team found 21 genes associated with infectious qualities and identified mutations affecting pilus proteins that allow the bacteria to move into host insects.
A recent study by Xi'an Jiaotong-Liverpool University provides a method to help farmers and policymakers decide whether organic farming is beneficial for the environment. The researchers analyzed international studies to find a threshold where organic farming's biodiversity gain outweighs its land requirements.
Quantitative disease resistance is a promising approach to combat plant diseases, which cause an estimated 13% loss of global crop yields annually. Researchers aim to identify disease resistance mechanisms for important corn diseases and develop genetic resources for the broader maize genetics community.
Researchers identified peak emergence times for 15 problematic weed species in the Northeast, revealing that waiting till after June 1 can avoid common ragweed. Flexible crop rotations and weather-based predictions can help farmers plan ahead and control weeds more effectively.
Researchers explored agri-food and environmental implications of Shanghai's pesticide use reduction policy, finding that imposing the policy at district level reduced crop acreage but alleviated pollution in water resources. The study suggests regional-level implementation can improve outcomes while maintaining food security.
Alison Ravenscraft, a UTA assistant professor of biology, has received a $895,000 grant from the NSF's Faculty Early Career Development Program. Her research focuses on how gut microbiota helps insects break down plant toxins, potentially reducing crop losses and pesticide use.
A Washington State University research team developed a system using cameras and small drones to detect and deter pest birds. The system successfully reduced bird counts by four-fold in vineyards, resulting in a 50% reduction in damaged fruits. Further refinement and industry partnerships are needed for commercialization.
Researchers found that beekeepers are aware of the Asian yellow-legged hornet's impacts on honey bee decline in Italy. Public awareness is increasing due to various channels such as internet searches and community activities. The hornet poses significant risks to pollination, honey production, and human safety.
Vertebrate scavengers prefer to dine on the carcasses of herbivores like mallard ducks and chickens, rather than higher-trophic-level vulture remains. This study found that avian and mammal scavengers only consumed a small portion of the vulture carcasses, highlighting the complexity of nutrient cycling through food webs.
A new study from the University of Eastern Finland found that climate change is causing the pine beauty moth to shift its range northward 50 years ahead of earlier predictions. The larvae feed on pine needles, and their population size is linked to warmer temperatures and forest health decline.
Scientists at UC Riverside demonstrate CRISPR technology can make permanent physical changes in the insect, passed down to three or more generations. The technology may hold promise for controlling the sharpshooter and preventing Pierce's Disease.
The UN Convention to Combat Desertification's Global Land Outlook 2 report warns that up to 40% of the planet's land is degraded, threatening half of humanity and roughly 1/2 of world GDP. The report offers hundreds of practical ways to restore land and ecosystem health.
Researchers have developed a compound that reduces pathogen virulence in rice without harming humans or the environment. This breakthrough has significant implications for combating bacterial pathogens in other crops.
Research reveals that climate change and drought can cause significant yield losses in soybeans, even with high levels of weed control. To mitigate this, farmers need to adopt integrated weed management strategies, including the use of soil-residual herbicides and late-maturing soybean varieties.
A new breed of honey bees has been developed through selective breeding to resist the Varroa mite, a major threat to global honey bee populations. The 'Pol-line' bees showed a two-fold increase in colony survival compared to standard varieties, with significantly lower mite numbers and reduced viral transmission.
Researchers at NC State University developed a new textile crop cover called Plant Armor that can effectively protect plants from insect infestation. The design features a maze-like structure that forces insects to navigate through it, making it difficult for them to reach the plant.
A new study reveals that leafcutter ants employ complex strategies to maximize the growth of their fungal
Researchers at the University of Texas at Austin have found a natural fungus that can kill off local populations of tawny crazy ants, with 62% of infected populations disappearing entirely. The fungus is specific to crazy ants and has no effect on native species, making it a promising biocontrol agent for protecting sensitive habitats.
Researchers at the University of Copenhagen have discovered that plants defend themselves against herbivores by redirecting their defenses to younger leaves, using substances like glucosinolates found in wasabi and mustard. This self-adjustment helps ensure the survival of future generations.
Scientists have identified a link between temperature and insect reproduction, finding that cold temperatures slow down reproduction in fruit flies and other insects. This discovery could lead to new control strategies for mosquitoes and agricultural pests, potentially reducing the spread of diseases like malaria.
Mathematicians at the University of Leicester have developed a new mathematical model that could greatly increase the efficiency of pest control. The model uses field data and computer simulations to predict the distribution of slugs in arable fields, accounting for individual creature movements.
A study by University of Illinois researchers found that applying dicamba at the latest growth stage and using a safener can help minimize injury to sweet corn. The results suggest that dicamba could be used safely in sweet corn with proper application timing and formulation, offering practical guidance for farmers.
A study found a significant correlation between hotel stays and exotic pest detections in New Zealand, suggesting that both international and domestic tourism can facilitate the spread of invasive species. The researchers emphasize the need for continued biosecurity measures to manage these risks.
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 found that half of Pseudomonas syringae strains benefited from the presence of aphids, but only the honeydew itself boosted bacterial populations. The study suggests using this phenomenon to develop alternative pest control methods.
Researchers at Osaka Prefecture University discovered that planteose is a storage carbohydrate distributed in the seeds of root parasitic weeds. Its physiological role involves rapid hydrolysis after strigolactone perception, providing essential nutrients for germination.
Research found that cacao agroforestry systems support unique bird species in tropical dry forests, while bats are more abundant in these areas than in nearby forests. This suggests that cacao farms can serve as biodiversity-friendly oases, providing food and refuge for birds and bats.
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.
Scientists have measured the speed of Candidatus Liberibacter asiaticus, a bacterium causing citrus greening disease. The bacteria can colonize a tree in around 80-100 days, faster than symptoms appear, making it difficult to control.
Researchers have confirmed a Champaign County waterhemp population is resistant to dicamba, with a 65% control rate. The population shows signs of metabolic resistance, activating detoxification genes before the chemical can harm. This finding raises concerns about the potential for broader herbicide resistance.
Researchers used machine learning and genomics to identify molecular markers of resistance to sugarcane yellow leaf disease in over 97 sugarcane genotypes. The study found that energy cane varieties with higher fiber content are more resistant to the disease, paving the way for commercial launches.
A large-scale study characterized 585 strains of the Xanthomonas perforans bacterium in Florida commercial tomato fields, finding associations between farms and transplant facilities as key points of pathogen spread. This research provides insights into the diversity of the pathogen population and potential control strategies for farmers.
Researchers applied a physics method to Balinese rice irrigation practices, finding that a balance between water stress and pest stress is crucial for equilibrium. The traditional method, which involves synchronized flooding, can help maintain social harmony and prevent chaos in water schedules.
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.
A severe upsurge of desert locusts in 2019-2020 caused $3.4 billion to $10.21 billion in monetary losses and severe acute food insecurity for over 3 million people in Pakistan. The authors suggest improving the prevention system, developing compensatory measures, and increasing the use of alternative pesticides.
University of Illinois researchers discovered waterhemp's unique mechanism to detoxify the herbicide SA3, adding complexity to controlling this weed. This finding raises concerns about the potential for waterhemp to resist new herbicides before they are even commercialized.