Articles tagged with Insecticide Resistance
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A recent study by Chiba University researchers found that moths can detect the ultrasonic pulse rates emitted by bats, which triggers distinct escape responses. The findings suggest that certain pulse rates signal high predation risk, causing moths to avoid flying and even stop reproduction.
A new study warns that field-evolved resistance to Bacillus thuringiensis and RNA interference is undermining the effectiveness of corn targeting rootworms with these biotech controls. The researchers advise using integrated pest management strategies, including crop rotation and planting conventional corn refuges.
Agroecological methods improve biodiversity, pollination, natural pest control, and crop yields, but new subsidies are needed to support farms' transition. The study found that incorporating nature-friendly practices increases benefits for nature and farmers, with higher soil carbon and overall increased crop yields.
A meta-analysis from the University of Copenhagen shows that flower strips with at least two sown species increase the number of natural enemies by an average of 70 percent. This is due to the diverse range of flowers attracting a broader range of beneficial insects, such as ladybirds and hoverflies.
Researchers at SwRI designed netting systems to deliver antimalarial drugs called Endochin-like Quinolones (ELQs) that destroy Plasmodium parasites transmitted by mosquitoes. The findings, published in Nature, show that the two ELQs kill parasites developing within the mosquito, potentially eliminating resistance.
A potent combination of antimalarial compounds blocks parasite transmission in mosquitoes while circumventing insecticide resistance. The new strategy retains activity even after a year and efficiently kills parasites even when applied to the female mosquito up to four days in advance of infection.
A study published in the Journal of Medical Entomology found a gene mutation in bed bugs that may contribute to their resistance to insecticides. The researchers, led by Warren Booth, discovered the mutation in 134 unique populations of bed bugs collected from North America between 2008-22.
A research team at Tokyo University of Science has identified two new tetranins in spider mite saliva that reduce reproduction and increase defense responses in plants. The findings have potential for organic farming techniques and more resilient crops, contributing to sustainable agriculture and enhanced food safety.
Researchers have identified novel mosquito repellents with high success rates from natural sources, including food and flavoring materials. The team's machine learning-based cheminformatics approach also pinpointed pyrethroid analogs up to 100 times more effective than existing industry standards.
The Compendium of Rose Diseases and Pests, Third Edition, is a comprehensive guide to diagnosing diseases, identifying pests, and expanding expertise in rose health management. Edited by industry experts, the book features over 50 contributing authors and provides practical guidance for students, researchers, educators, and professionals.
A research team led by Hidemasa Bono mapped the genomes of susceptible and resistant bed bug strains, revealing new insights into the development of pyrethroid resistance. The study identified 729 resistance-specific mutations in protein-coding genes related to DNA damage response, cell cycle regulation, and lysosome functions.
A new University of Texas at Arlington study provides a comprehensive genetic map of the common bedbug Cimex lectularius, enhancing scientific investigations into pesticide resistance and developing targeted pest control strategies.
A new gene drive technology, known as e-Drive, has been developed to reverse insecticide resistance in pests by replacing mutant genes with native ones. The system is designed to spread and then disappear, leaving only a population of insects susceptible to pesticides.
Researchers explore adapting agricultural techniques, such as integrated pest management, to treat cancer. By managing cancer as a chronic condition, adaptive therapy aims to overcome treatment resistance and improve patient outcomes.
Induced resistance, a plant-based approach, prepares plants to fight pests and disease by activating their immune systems. This holistic strategy combines multiple methods for tailored protection, enhancing abilities beyond just one defense mechanism.
Researchers found that smaller water droplets (200 micrometers) stimulated healthier growth and resistance to pests and pathogens in tomato plants. The study suggests improved agricultural practices through water spray technologies.
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.
A study published in the journal Insects found that hemp leaf extract containing cannabidiol (CBD) is effective in killing mosquito larvae, including those resistant to typical insecticides. The research suggests CBD's potential as a safe and sustainable alternative for controlling mosquito populations.
A new study found that consumer-grade insecticide sprays have little to no effect on eliminating German cockroach infestations. The residues of these products did not kill more than 20% of the cockroaches, with some taking up to five days to die.
A new study reviewing the academic literature on indoor pest control reveals that successful mosquito treatments have unintended consequences, including the return of household pests like bed bugs and flies. This has led to community distrust and abandonment of these treatments, contributing to rising rates of malaria.
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 study shows that ultraviolet-absorbing film effectively controls high-resistant thrips in greenhouses, leading to a 96.67% control rate and increased crop yields. The UVa-F film works by exploiting the thrips' visual system, reducing the need for chemical pesticides.
Researchers optimized the release pattern of Telenomus podisi, a parasitoid wasp that neutralizes the Brown stink bug, for effective biological control in soybean crops. By analyzing the dispersal range and releasing points, they found that intervals of 30 m can assure sufficient control of stink bugs.
Researchers at the University of California - Riverside have discovered a highly effective and nontoxic way to kill western drywood termites using a pleasant-smelling chemical called pinene. The method involves releasing the scent of pinene, which attracts termites and guides them to a spot where insecticide is injected into wood.
A researcher will study how plants defend themselves against nematode infections, which could lead to novel drugs or antibiotics for humans and livestock. The project aims to increase food security in Africa and Asia by understanding the molecular mechanisms behind plant resistance.
Researchers from Tokyo University of Science found that rose essential oil increases the transcript levels of PIR1 and PIN2, key plant defense genes, in tomato plants. The study also showed that REO reduces leaf damage caused by pests and attracts beneficial predators to protect against herbivores.
Researchers at the University of Maryland have developed a genomic method to monitor pesticide resistance in crops, allowing for early detection of emerging threats. The approach identifies specific genes with mutations that can explain toxin resistance, and provides insights into how common strategies may be facilitating resistance.
A new study finds that red-colored agricultural nets are more effective at deterring onion thrips than traditional black or white nets. The use of red nets resulted in a 25-50% reduction in insecticide applications, making them a promising solution for sustainable agriculture.
Researchers have documented insecticide resistance in field-collected populations of bluegreen aphids, a worldwide pest of pulses and legume crops. The study highlights the need for new strategies to manage this pervasive pest, as conventional insecticides are no longer effective.
The Asian malaria mosquito Anopheles stephensi is spreading drug and diagnostic resistant malaria in Africa, increasing the risk of malaria infections by 270%. Its unique ecology and resistance to insecticides make it challenging for conventional mosquito control tools.
A systematic review and meta-analysis found that dual active ingredient insecticide-treated nets are effective in preventing malaria. The study showed that these nets can control the spread of the disease when traditional pyrethroid-based nets become less effective due to resistance.
A systematic review by the University of Adelaide found combining pyrethroid insecticide with chlorfenapyr improves its effectiveness in treating malaria-preventing mosquito nets. The WHO has updated its guidelines to include these new recommendations.
The widespread use of insecticides for malaria control has unintended consequences, including the development of resistance in other disease-carrying arthropods. This can lead to the spread of overlooked and dangerous tropical diseases. Understanding the behavior and insecticide susceptibility status of these organisms is crucial to pr...
A study reveals high levels of insecticide resistance among Aedes aegypti populations in Dhaka, compromising mosquito control and increasing dengue burden. Researchers recommend non-insecticidal approaches, such as Wolbachia-infected mosquitoes, to effectively manage dengue vectors.
Researchers propose a practical framework for managing the risks of biopesticide resistance evolution, suggesting that farmers can help by planting a wider diversity of crops and using multiple biopesticides. This approach aims to reduce the spread of resistance and keep biopesticides effective in the long term.
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.
A new study found that using two insecticides on bed nets can prevent malaria by killing off resistant mosquito variants. The trial showed a significant reduction in malaria cases among people sleeping under dual-ingredient net treated with one pyrethroid and another active ingredient.
A study by North Carolina State University found that two common veterinary drugs, Fluralaner and Ivermectin, are effective in killing bed bugs on poultry farms. Fluralaner was highly effective against bed bugs with resistance to common insecticides.
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.
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.
Researchers at Ohio State University discover that carbon black nanoparticles are fatal to yellow fever mosquito larvae in standing water. The material accumulates on the larvae's head, abdomen, and gut, blocking basic biological functions.
A novel class of bed net that kills mosquitoes resistant to traditional insecticides by making them unable to move or fly significantly reduces malaria infection in children. The study found a 43% reduction in malaria prevalence and 44% reduction in clinical episodes over two years.
A novel bed net treated with chlorfenapyr has been shown to significantly reduce malaria infection in children, with a 43% decrease in the first year and 37% decrease in the second year. The study found that the bed net reduced clinical episodes of malaria by 44% over two years.
Researchers discovered that plant volatile signals can warn neighboring plants of herbivore attacks, activating defense genes and increasing resistance. The team found epigenetic mechanisms, including histone acetylation, play a key role in this process.
The Colorado potato beetle has evolved rapid resistance to insecticides by leveraging its existing genetic diversity, allowing different populations to quickly adapt and overcome new chemicals. This wealth of diversity will likely make the pest difficult to control in the future.
Female mosquitoes learn to avoid pesticides after a single exposure, allowing them to seek out safer food sources and resting sites. The study found that pre-exposed mosquitoes were more likely to avoid pesticide-treated nets and rest in pesticide-free containers.
Researchers at the University of California San Diego have developed a method to reverse insecticide resistance in mosquitoes using CRISPR/Cas9 technology. By replacing an insecticide-resistant gene with its susceptible counterpart, they have successfully restored genetic susceptibility to these chemicals.
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 at New York University have developed seven new crystal forms of the insecticide imidacloprid, which work up to nine times faster than the original version. The new forms enable the control of disease-carrying mosquitoes in smaller amounts and with reduced environmental impact.
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.
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.
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.
A new study found that yellow fever mosquitoes have distinct genetic changes behind permethrin resistance, including mutations in VGSC and cuticle protein genes. These mutations enable the mosquitoes to survive exposure to the pesticide, posing a significant threat to disease control.
A team of scientists led by the University of Göttingen has discovered a connection between a specific gene and plant resistance to pathogens. The study found that plants lacking this gene accumulate active acids, but show increased resistance - at the cost of reduced growth.
Researchers at University of Missouri developed genetically modified mosquitoes resistant to Zika virus using CRISPR gene-editing technology. These 'suicide mosquitos' cannot transmit the disease and can interrupt the disease cycle, making them a potential solution for controlling the spread of Zika virus.
Scientists at TU Graz have identified a bacterium inside the seed of rice plants that can lead to complete resistance to a particular pathogen. The bacterium, Sphingomonas melonis, produces an organic acid that inhibits the pathogen and renders it harmless.
Scientists explore why some plants resist certain pathogens while others are susceptible. Recent advances in technology will aid in understanding the molecular basis of nonhost resistance, enabling improved disease control strategies.
A collaborative effort involving genetically engineered cotton and mass releases of sterile pink bollworm moths has successfully eliminated the invasive pest from cotton-producing areas of the US and Mexico. This strategy saved U.S. cotton growers $192 million from 2014 to 2019.