Researchers at Penn State discovered that a viral gene in gypsy moths manipulates their hormones to induce continuous eating and prevent molting, causing them to climb and die on treetops. This behavior enhances transmission of the virus to new hosts.
Researchers at Purdue University have created a type of turfgrass that is safe for grazing animals but toxic to certain insects. The fungus, called Neotyphodium, produces compounds that kill insects while protecting the grass from animal harm. This breakthrough could lead to reduced pesticide use and promote sustainability in agriculture.
The Entomological Society of America recognizes Marvin K. Harris, Gail E. Kampmeier, Kevin L. Steffey, and two others for their significant contributions to the field of entomology. These honorees have demonstrated extraordinary commitment to the society through their service, research, and leadership.
UC Riverside researcher Joao Pedra to investigate immune system response to rickettsial infections, potentially leading to novel therapeutics against devastating tick-borne diseases.
Researchers have identified three cytochrome P450s in honey bee midguts that detoxify tau-fluvalinate and coumaphos, potentially allowing bees to coexist with these pesticides. This discovery may lead to the development of less toxic mite control methods.
A GLBRC study links agricultural landscape simplification to crop pest abundance and increased insecticide use. Perennial bioenergy crops, such as switchgrass and mixed prairie, may mitigate negative effects.
The Entomological Society of America has elected 10 new Fellows for 2011, recognizing their outstanding contributions to entomology. Dr. Susan J. Brown is a leading geneticist who established Tribolium as a model organism for insect development research, while Dr. James Carey is an authority on arthropod demography and invasion biology.
A Purdue University study discovered a combination of enzymes in termite guts and symbionts that can efficiently break down woody biomass for biofuel production. The researchers found that the enzymes work together synergistically to release sugars from plant material, which is essential for creating biofuels like ethanol.
A 100-million-year-old mayfly fossil has provided valuable insights into the ecology of ancient ecosystems. The discovery of a rare ovipositor and long antennae sheds light on the life cycle and adaptations of this ancient species.
A new research area seeks to discover ways to manage the evolution of drug-resistant disease organisms and slow their spread. The goal is to develop a science-based model for drug-resistance management that can inform treatment guidelines for various diseases, including malaria, MRSA, AIDS, and cancer.
The i5k Initiative aims to sequence the genomes of 5,000 insects and other arthropods over five years. This will provide valuable information for developing new pesticides, understanding disease transmission, and controlling agricultural pests. The project's leaders invite entomologists worldwide to contribute to the effort.
Researchers found that Hessian flies can trigger strong defenses in wheat plants, causing them to release essential nutrients to the insects. However, avirulent larvae can sometimes survive by reversing these defenses, potentially extending the durability of resistance.
Researchers at UCR identified three classes of volatile odor molecules that can impair or completely disrupt mosquitoes' carbon dioxide detection machinery. The findings offer powerful advantages as potential tools for reducing mosquito-human contact and could lead to the development of new generations of insect repellents and lures.
A team of researchers successfully barcoded over 28,000 Australian moth and butterfly specimens, covering 65% of the country's known species. This achievement will transform biodiversity monitoring and biosecurity efforts in Australia.
A parasitic fungus infects tropical carpenter ants, causing them to become zombie-like and die in ideal conditions for the fungus. The fungus affects the ant's muscles, nervous system, and behavior, leading to a loss of coordination and death.
Researchers warn that seed mixtures could increase the risk of pest resistance and reduce choices for growers, highlighting concerns over integrated pest management. The use of biotechnology in seed mixtures may lead to increased pressure on the soil insecticide market as resistance develops.
A new study in fruit flies explores the potent effects of methamphetamine on the body, identifying molecular pathways and energy metabolism changes associated with the drug. The research found that sugar metabolism plays a role in reducing toxicity, while disruptions to calcium and iron balance may contribute to dysfunction.
Researchers have deciphered the relationships among flies, confirming episodic radiations and identifying over 400 morphological characteristics. The study sheds light on the evolutionary history of flies, which has been extensively branching out over 260 million years.
Researchers analyzed genes from nine bee species, revealing unique genetic changes associated with eusociality in highly and primitively eusocial bees. These findings suggest that the evolution of eusociality is an independent process, shaped by distinct genetic signatures.
A UC Riverside entomology team proposes a pesticide-free method to increase egg production by targeting a damaging parasite. The strategy involves introducing a natural parasite that competes with and eliminates the more difficult-to-manage fowl mite, reducing egg losses by up to five percent.
Research from the University of Arizona found that bacteria in the genus Rickettsia can rapidly evolve whiteflies, making them more likely to survive and reproduce. The bacteria manipulate sex ratios, causing more female offspring to be born, which is unusual for such a short period.
May Berenbaum, an expert on bees and pollinators, receives the 2011 Tyler Prize for her groundbreaking research on declining bee populations. She has also made significant contributions to public understanding of science through her writing and advocacy.
Scientists have created a comprehensive framework for understanding fly evolution, revealing surprising relationships between species. The study provides new insights into the origins and diversification of flies, which comprise over 10% of all life on Earth.
Researchers at UC Davis have discovered a link between two major biological pathways involved in pain, which may pave the way for new treatments. The study found that inhibitors of the enzyme sEH can alleviate debilitating pain by targeting the messenger cAMP.
The University of Illinois team produces animated educational videos on topics like insect control and water treatment to reach a larger audience at a fraction of the cost. The initiative uses cell phones as a platform to distribute the content, targeting viewers in both developing and developed countries.
A University of Maryland-led team has developed a transgenic fungal approach that targets malaria-causing sporozoites, reducing disease transmission by at least five-fold. The method uses a fungus naturally attacking mosquitoes and inserts genes for human anti-malarial antibodies or scorpion toxins.
Researchers have developed a method to disperse pathogenic fungi as a means of preventing malaria spread, using synthetic oil to increase dispersal effectiveness. The fungi cause muscardine disease in mosquito larvae, killing up to 50% more larvae than untreated spores and reducing pupation levels.
Antennal drumming behavior has been linked to development of social caste in a native paper wasp, Polistes fuscatus. The new work shows that exposure to simulated antennal drumming biases developing larvae toward the physiological characteristics of workers rather than gynes.
Scientists at Purdue University found that many wheat lines carrying resistance genes are ineffective against Hessian flies in the southeastern US. The study suggests that combining two unreleased genes may be the best option to create more effective resistance.
A recent study on bedbugs has identified potential genes associated with pesticide resistance, shedding light on the mechanisms behind their increasing resilience to insecticides. The research may lead to the development of novel control methods that are more effective against these troublesome insects.
A large-scale study has found major declines in US bumble bee populations, with four species experiencing a 96% drop in relative abundance and a 23-87% loss of geographic range. The researchers attributed the decline to low genetic diversity, high infection rates with the parasite pathogen, and climate change.
Native pollinators such as wild bees and wasps infected with RNA viruses, transmitted via pollen. Viral diseases may impact pollinator populations and ecosystem health.
A recent study published in HortScience found that Bounce fabric softener sheets can repel adult gnats, with a mean proportion of fungus gnat adults collected being significantly lower in sample compartments containing dryer sheets. The study attributed the effect to volatile compounds such as linalool and beta-citronellol.
A new study by the University of Utah found that the LouseBuster is highly effective in killing head lice and nits, with 94.8% mortality rate. The device uses warm air to dry out lice and nits, making it a safe and easy treatment option.
Researchers identified top 100 known insect pests most likely to establish in the US and individual states, finding that many pests are missing from neighboring states. The study found significant negative relationships between state size, biodiversity, domestic air passengers, and GDP and absent pest species.
Researchers at the University of Arizona have developed a novel approach to controlling pink bollworm pests in cotton fields. By combining pest-resistant cotton with the controlled release of sterile moths, they have virtually eliminated the pest from Arizona, allowing growers to maintain high yields without spraying insecticides.
Researchers at North Carolina State University have discovered that female boa constrictors can reproduce asexually, producing all-female babies with rare genetic traits. The study found that these WW-chromosome females retained their mother's color mutation and lacked any male influence.
A new study from the University of Minnesota found that genetically modified Bt corn reduces pest losses in both transgenic and non-transgenic corn. The study found that areawide suppression of European corn borer populations resulted in estimated annual losses of $1 billion, but also benefited non-Bt corn by 28-73% in neighboring states.
The Entomological Society of America honored 17 professional and student award winners for their contributions to insect science. The awardees include Dr. George G. Kennedy, a renowned expert on insect management, and Dr. Sharron Quisenberry, who has made significant contributions to conservation and germplasm development.
A study by University of Wisconsin-Madison researchers found that expanding bioenergy crops in the Upper Midwest could decrease bird species by 7-65% due to monoculture farming. In contrast, perennial cultures of prairie plants and grasses could increase biodiversity by 25-100%.
Researchers mapped infection-response genes in Culex quinquefasciatus to better understand its role in transmitting diseases such as West Nile virus and lymphatic filariasis. The study aims to broaden the understanding of immunity genes beyond those expected, potentially providing a new approach to controlling mosquito-borne diseases.
A new species of parasitic wasp, Eurytoma erythrinae, has been released in Hawaii to combat the invasive Erythrina gall wasp, which harms endemic wiliwili trees. The parasite's high success rate has led to significant declines in tree damage.
A new multistate study aims to develop and test technologies for site-specific detection and control of nematodes, reducing nematicide usage by over 75% compared to uniform-rate applications. The project will enhance crop yield while saving farmers thousands of dollars annually in reduced pesticide costs.
Two LSU research groups investigate the impact of oil and dispersants on the Louisiana salt marsh ecosystem and genetic structure of wildlife populations. The studies aim to understand short- and long-term effects of chemicals on natural systems.
A team of UC Davis scientists discovered a novel mechanism behind Vioxx's link to heart attacks and strokes, finding that the drug increases a regulatory lipid that contributes to cardiovascular events. The research may pave the way for safer coxibs for millions of arthritis patients.
Researchers found that altering a honey bee's perception of distance alters its brain gene expression, particularly in the optic lobes and mushroom bodies. This study provides new insights into how bees process spatial information and communicate through dance language.
Dr. Kenneth F. Raffa, a renowned expert in forest entomology, has been selected to deliver the Founders' Memorial Award lecture at Entomology 2010. He will honor the memory of Dr. Andrew Delmar Hopkins, considered the father of North American forest entomology.
The ESA has elected ten new Fellows for their outstanding research, teaching, and extension work in entomology. Dr. Gary Blomquist and Dr. David Boethel are recognized for their research on pheromones and insect IPM, respectively.
Kansas State University researchers have successfully used gene-silencing nanoparticles to kill mosquito larvae and make them more susceptible to pesticides. This technology has the potential to revolutionize insect control, targeting specific pest species while being environmentally friendly.
Researchers successfully engineer mosquitoes immune to malaria parasite, rendering them ineffective vectors for human infection. The breakthrough has significant implications for global health, with an estimated 1 million fatalities annually due to the disease.
Penn State's Liwang Cui leads a seven-year, $14.5 million project to combat malaria in Southeast Asia. The center will address research needs in regions with high malaria morbidity and mortality rates.
Researchers have identified a key component of the female pear psylla's pheromone, which could be used to lure males onto sticky traps or disrupt their mating. This compound, 13 methyl heptacosane, may reduce reliance on insecticides and help mitigate resistance.
Researchers at Washington State University found that organic farms have more balanced insect populations, leading to better pest control and healthier plant growth. This balance is achieved through a diverse range of species, resulting in a more harmonious ecosystem.
A collaborative project is digitizing and consolidating nearly one million specimen records from ten bee collections across the US to create a centralized database. The project aims to understand native bees' roles in agricultural and natural systems and predict risks to bees due to climate change and habitat loss.
Researchers found that organic farming increases beneficial predator populations, reducing insect pests and promoting larger potato plants. This biodiversity conservation may be the secret behind organic farmers' success in achieving high yields.
A multi-institutional team sequenced the body louse genome, revealing a simplified genetic toolkit that sheds light on its unique biology. The study found that the body louse has a reduced list of detoxification enzymes, making it an attractive model for studying resistance to insecticides.
Researchers at Purdue University have successfully mapped the genome of the body louse, a human parasite that spreads through contact. The study identified key receptors in the louse's nervous system, which could be targeted for developing new, effective insecticides to combat head lice resistance.
Mark Hoddle, a UC Riverside entomologist, is searching for invasive pests that could threaten California's $320 million avocado industry. He has already collected over 300 pest-infected avocados from Peru and is working to identify natural enemies.
A multi-institutional team has sequenced the human body louse genome, revealing its unique characteristics and potential applications in understanding lice-borne diseases. The tiny parasite's pared-down genetic profile makes it an attractive organism for studying resistance to insecticides.
Researchers at UCR are developing genetically engineered bacteria to kill mosquito larvae, making it ten times more effective than current products. The new bacterial strain is environmentally safe and has built-in resistance management properties, potentially leading to a commercially available product in 3-5 years.