Scientists discover six new Dracula ants species in Madagascar that challenge the traditional ant caste system. The study reveals that minor workers become queens, revolutionizing our understanding of ant biology.
New research suggests that stink bug traps can actually increase damage to tomato fruits, with trap placement causing higher abundance of pests on the fruit. This phenomenon is known as 'trap spillover,' where pests rest on nearby vegetation before being captured by the trap.
Researchers found that planting cotton in May reduced boll damage by up to 36% compared to June planting dates. Early planting avoids peak stink bug pressure during the bloom cycle, reducing the need for insecticides.
Researchers found that western corn rootworm beetles resistant to crop rotation are less vulnerable to RNAi treatment, surviving longer on soybean leaves. The study suggests targeting a single gene may not be the best strategy for controlling pests.
A worldwide study found that grazing animals can improve biodiversity in over-fertilized grasslands by allowing native plants to compete for sunlight. The study, which analyzed data from 40 sites across six continents, suggests that the removal of fertilizer and introduction of grazing animals can lead to increased plant diversity.
Cornell research reveals that natural enemies like ladybeetles can delay pest resistance to Bt crops, reducing the need for multiple genes and refuge plants. This finding supports the use of Bt crops in agriculture while minimizing pesticide usage.
Resistance to pesticides has increased in nearly a thousand pest species, including insects, weeds, and fungi. Entomologists updated definitions for key terms related to resistance to facilitate understanding and management of the issue.
Researchers at Penn State have identified major protein components in brown marmorated stink bug saliva, revealing distinct profiles for watery and sheath salivas. This breakthrough may lead to new pest control methods by targeting specific factors essential to feeding behavior.
New research shows ordinary hair conditioner outperforms special nit-removal products in removing head lice eggs. The study found that ordinary conditioners were equally effective in loosening the glue-like substance holding the eggs in place, making them easier to remove.
Researchers discovered a female-specific pheromone that attracts males but repels virgin females, which could lead to managing the invasive Asian longhorned beetle. The team also found that sexually mature females continue to produce this pheromone after mating, potentially benefiting both sexes.
Researchers found that Wolbachia reduced malaria parasite infection and oocyst intensity at 82 degrees Fahrenheit. However, its effect varied across different temperatures, with increased oocyst intensity at 75 degrees Fahrenheit.
Fred Gould will deliver a lecture on Dr. Robert L. Rabb, a pioneer in developing ecologically sound approaches to insect pest management. Gould's research has profoundly influenced global crop management and vector-borne disease control.
The University of California, Riverside has found that Tamarixia radiata, a wasp that targets the Asian citrus psyllid, poses no significant environmental risk. The wasp is being used for biological control in Florida, Texas, and other regions to combat the invasive pest.
A recent study found that the use of wasps to combat citrus greening disease is unlikely to threaten non-target insects. The parasitoid wasp Tamarixia radiata was tested against seven non-target psyllid species, with only one showing a low level of parasitization.
A new study from South Africa reveals that genetically modified maize has a comparable diversity of insects to conventional crops. The research collected over 8,700 arthropod individuals and found no significant differences in abundance or diversity across different functional groups.
Two new studies have found that genetically modified, insect-resistant crops have no negative effects on beneficial insect predators or a beneficial, entomopathogenic nematode. The research demonstrated that Bt proteins used in corn and cotton crops do not harm two important insect predators that help suppress pest populations.
Four common pesticides commonly used on crops to kill insects and fungi also kill honeybee larvae within their hives. The team found that mixtures of pesticides can have greater consequences for larval toxicity than individual pesticides, with chlorothalonil being the most toxic.
A new genus of rove beetles, Morphogenia, has been discovered in the Brazilian Amazon, featuring remarkable sexual dimorphism between males and females. The study highlights the vast number of species within this group, with over 9,000 known species, yet much still to be discovered about their ecology.
Researchers at UC Riverside have discovered how the common fruit fly detects sweet compounds, revealing a new understanding of taste receptors in insects. The study's findings hold promise for developing strategies to block these receptors, potentially helping to control disease-carrying mosquitoes and other pests.
A new study found that the human body louse can transmit bacterial infections to humans, while the human head louse does not. The researchers discovered that several immune genes were regulated differently in head and body lice after infection with the bacteria, and the infection progressed further in body lice over time.
A recent study published in the Journal of Medical Entomology found that bed bug nymphs develop 2.2 days faster when living in groups than as solitary individuals. This significant difference suggests that social interaction plays a key role in accelerating bed bug development.
A new study found that bed bug infestations in Philadelphia increased by 4.5% per month from 2008 to 2011, with reports peaking in August and lowest in February. The researchers mapped hotspots and suggest treating during warmer months or winter when numbers are down.
Entomologists at UC Riverside have created a novel technique that combines synthetic pheromone with insecticide sprays to effectively control Argentine ant colonies. The 'attract-and-kill' approach resulted in a 57-142% increase in kill rate, making it an economically viable alternative for urban pest management.
Mangroves have expanded dramatically along Florida's Atlantic Coast as frost frequency declined, replacing salt marshes. This change is linked to extreme weather patterns and rising temperatures.
Significant declines in European corn borer populations suggest that expensive, insecticidal toxin-resistant corn hybrids are not needed. Non-Bt hybrid seeds can be a more cost-effective option for growers to reduce potential losses.
A new set of guidelines assesses pollinator performance using four metrics: single-visit efficiency, abundance, inclement weather behavior, and visitation rate. Small native bees are found to be highly efficient pollinators despite low abundance.
A new study found that bed bugs can survive freezing temperatures for a certain period, but prolonged exposure to cold can lead to their death. The researchers discovered that minimum exposure times of 80 hours at -16°C are required for 100% mortality.
A new laboratory rearing method has been developed to study the western bean cutworm's susceptibility to Bacillus thuringiensis toxins. This allows for the evaluation of toxin efficacy and potential resistance development.
Rutgers researchers confirm presence of Periplaneta japonica, a species well-documented in Asia, which can survive freezing temperatures and outdoor conditions. The new species was first spotted in New York in 2012 and is not expected to pose an alarm, but may compete with existing cockroach species for space and food.
The Turkestan cockroach has become a dominant invasive species in urban areas of the southwestern United States, replacing the oriental cockroach. Its shorter developmental period and higher reproductive rate are key factors contributing to its success.
Scientists at UC Riverside identified a key target for disrupting mosquito host-seeking behavior, which could aid in controlling disease transmission. They discovered compounds that can block the mosquito's CO2 and skin-odorant receptors, reducing attractiveness and creating an affordable alternative to traditional CO2-based mosquito t...
Scientists describe a new, large, and colorful beetle species from French Guiana that lives among ants, defying the dull coloration of its relatives. The newly discovered species, Guyanemorpha spectabilis, belongs to the Pseudomorphini Tribe and is comparable to the Olinguito, a carnivore species recently described in ZooKeys.
Scientists have sequenced the genome of the spotted wing drosophila, a major pest affecting blueberries, cherries, and other fruits. The publicly accessible SpottedWingFlyBase Web portal provides valuable data for researchers to develop more effective monitoring and control strategies.
John Trumble, a renowned entomologist at UC Riverside, has been awarded the 2013 Oscar Lorenz Award for his outstanding contributions to research and extension education in the California vegetable industry. He has developed effective integrated pest management programs and strategies to reduce the use of toxic insecticides.
The University of California, Riverside researcher is using sensors to count and classify insect vectors, providing real-time information to plan effective interventions. She aims to create an open-source library of insect wingbeat signatures and behaviors to aid researchers worldwide in combating malaria.
University of Minnesota researchers have developed a new approach for identifying potential environmental effects of releasing genetically engineered (GE) insects. The framework evaluates the entire range of potential effects, including those during transitory and steady state phases, providing improved guidance for ecological risk ass...
A new study from the University of Alberta has identified key tree chemical compounds that play critical roles in the beetle's pheromone production and attraction. The research reveals that adding a volatile tree chemical to bait can increase beetle capture rates, providing hope for quicker monitoring and early detection of infestations.
Researchers found that queen bees signal detailed information about their mating state and reproductive quality to workers, influencing colony dynamics. This honest communication may help explain the rapid rates of queen loss and turnover reported by beekeepers.
Researchers at UMD found that fruit flies have similar mechanisms to regulate blood sugar as humans, including the use of insulin. This discovery enables the use of fruit flies in screening tests for new diabetes treatments.
Scientists used state-of-the-art genome sequencing and bioinformatics to resolve the long-standing question of ants' evolutionary relationships. The study found that ants are more closely related to bees than to most wasps, with ants forming a sister group to the Apoidea family within Hymenoptera.
A new study suggests that genetically modified Bt sweet corn can reduce the need for traditional insecticides, resulting in increased marketability and profitability for farmers. The research found that Bt sweet corn outperformed non-Bt varieties in controlling pest infestations, even with conventional insecticide applications.
A recent study by researchers at the University of California, Riverside found that selenium, a naturally occurring metal, has toxic effects on honey bees. The study reveals that organic forms of selenium alter protein conformation and cause developmental problems, while inorganic forms cause oxidative stress.
Researchers at UC Riverside identified DEET-detecting olfactory receptors, enabling the development of three safe compounds that mimic DEET and could prevent the transmission of deadly vector-borne diseases. The findings offer a major breakthrough in controlling insect-borne diseases worldwide.
A Canadian research team, led by a UC Riverside expert, has won the Hult Prize to develop insect-based meals for impoverished regions. Insects are excellent low-cost sources of protein and essential nutrients.
The Entomological Society of America recognized Elina Lastro Niño, Kumaran Nagalingam, Lisa Overall, and Paul Michael Bardunias with various awards for their research and contributions to the field of entomology. The winners were announced at the 2013 ESA meeting.
The Entomological Society of America has named winners of the 2013 student travel grants to attend the Annual Meeting in Austin. The grants, funded by USDA-NIFA, provide financial support for graduate students in entomology.
The Entomological Foundation awards Dr. John Acorn the Entomological Foundation Medal of Honor for his preeminence in the field through outstanding contributions. The foundation also recognizes Dr. Douglas B. Walsh's efforts in integrated pest management, resulting in a reduction of over 100,000 pounds of insecticide use annually.
The Entomological Society of America has awarded Monsanto Research Grants and Student Travel Awards to three students: Chelsea Wright, María Cristina Carrasquilla, and Chandra Moffat. The grants will fund their research projects on vector-borne diseases, entomology ecology, and host-associated differentiation.
Researchers have identified compounds found on human skin that impede mosquitoes' ability to detect their victims, providing a promising new approach to preventing mosquito bites. These substances, including lactic acid and 1-methylpiperzine, are already used in various medicines and products.
Researchers discovered that symbiotic bacteria inside beetles suppress plant defenses against chewing insects, allowing beetles to thrive. The findings suggest a new way plants can be vulnerable to insect attacks.
Researchers identified a neuropeptide named natalisin that controls reproductive ability and interest in mating in insects. The study found that knocking out natalisin in fruit flies reduced their reproductive capacity and decreased their desire for mating.
A University of Arizona-led study has provided the first on-the-ground evidence that Southwestern plants are being pushed to higher elevations by an increasingly warmer and drier climate. Plant communities were found to be different 50 years ago due to individual species shifting their ranges independently.
Researchers have identified over 100 species of small predatory beetles in Tahiti, with 28 newly described in the open-access journal ZooKeys. These beetles have evolved to lose their flight wings and are highly specialized to specific habitats.
A new study reveals that at least five species of tropical fruit flies, including the infamous Medfly, are permanently established in California and spreading despite decades-long eradication efforts. The study's findings have significant implications for California agriculture and international trading partners.
A new bed bug trap captures twice as many insects as current traps by incorporating a pitfall trap design, a chemical lure, and a sugar-and-yeast mixture producing carbon dioxide. The trap's taller design makes it harder for bed bugs to escape.
Gene Robinson, a renowned expert in social behavior and genetics, has received the Animal Behavior Society's Distinguished Animal Behaviorist award. His groundbreaking work on the mechanisms and evolution of social behavior in Western honey bees has significantly advanced the field.
Jocelyn Millar, a professor of entomology at UC Riverside, has been elected a fellow of the Entomological Society of America (ESA) for his outstanding contributions to entomology. He is recognized internationally as an expert in chemical ecology and has developed practical applications for detecting and managing insect populations.
Researchers studied temperature-driven changes in tea tortrix population dynamics, finding that desynchronization leads to more synchronous outbreaks. A mathematical model predicts population cycles under constant and seasonally driven temperature regimes, shedding light on how temperature influences insect populations.
The Entomological Society of America has elected ten new Fellows, Dr. Charles Vincent and Dr. Jeffrey G. Scott, who have made significant contributions to entomology in research, teaching, extension, or administration. The fellows will be recognized at the ESA's 61st Annual Meeting in Austin, Texas.
A new technique enables scientists to target multiple genes in honey bees via RNA interference, allowing for the examination of insulin metabolism's role in food-related behavior. This breakthrough could provide insight into human dietary behavior and potentially lead to gene control over undesirable food choices.