Articles tagged with Parasitoids
Hawaii's songless crickets have rapidly evolved to overcome reproductive challenges caused by lack of courtship songs. Non-singing males develop faster than wild-type males, allowing them to seek out female mates using alternative methods.
Researchers discover new parasitoid wasp species, Heinrichiellus natgeo, in honor of the National Geographic Society. The tiny insect plays a crucial role in regulating insect pest populations and is found in remote areas of India.
A recent study reveals that African forest habitats maintain a species-rich Pimplinae fauna compared to nearby farmland, making them valuable for conserving unknown dark biodiversity. The research also suggests that parasitoid wasps occupy a high position in food webs and are vulnerable to biodiversity loss.
Researchers at University of Tsukuba discovered 'pirate parasitism' where parasitoid wasps lay eggs in unsuitable hosts, leading to successful parasitism. The phenomenon occurs when one parasitoid wasp takes advantage of a host's already suppressed immune system due to another parasitoid wasp.
Kelsey Coffman, assistant professor at UTIA, is honored for her research on beneficial viruses in parasitoid wasps and their impact on insect interactions. She has received the Insects 2024 Young Investigator Award for her significant contributions to entomology.
Researchers discovered a fossilized wasp from the mid-Cretaceous period with a Venus flytrap-like abdomen, indicating it was a parasitoid insect. The species, Sirenobethylus charybdis, had a unique grasping apparatus that likely targeted highly mobile prey.
Researchers identified two venom genes in parasitoid wasps that degrade adult tissue precursors in host fly larvae, ensuring successful parasitism. The findings provide insights into the molecular mechanisms behind the sophisticated survival strategy of these wasps.
Rice University researchers have identified a new parasitoid wasp species, Chrysonotomyia susbelli, found on the university grounds in Houston, Texas. The discovery reveals an intricate ecosystem involving galls and cynipid gall wasps, with potential for many more undiscovered species.
Researchers at Mississippi State University have discovered a new parasitic wasp species that attacks and infects adult flies, revealing a 'spectacular example of undescribed biology hidden in plain sight'. The study highlights the importance of ongoing research investment in insect biodiversity and systematics.
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 developed an X-ray imaging technique that produces detailed images of living organisms at high resolution while minimizing radiation exposure. This advance enables small organisms to be studied over longer periods, revealing new insights into dynamic processes.
Researchers have discovered 16 new species of Loboscelidia parasitoid wasps in Vietnam, increasing the global total by 30%. The new species exhibit unique egg-burying behavior similar to solitary hunting wasps.
The study reveals the life cycles of four Lonomia Walker species, characterized by unique morphological features. New parasitoids and host plants have also been discovered, shedding light on the complex relationships within this genus.
The parasitoid Eiphosoma laphygmae is likely to be the best classical biological control from the Americas against the devastating fall armyworm pest, according to a review by CABI scientist Dr. Marc Kenis. This natural enemy of the pest has been found to have high specificity and importance in most native ranges.
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 at the University of Tsukuba have created a genetic toolkit to investigate the molecular mechanisms of a parasitic wasp, Asobara japonica. By analyzing its genome and using RNA interference, they identified key genes involved in venom production and found that suppressing these genes can lead to phenotypic changes.
A study led by Washington University in St. Louis found that nonlethal parasitic infections reduce herbivory rates and trigger trophic cascades impacting plant communities. The research used a mathematical model and global meta-analysis to highlight the ecological consequences of common parasitic infections in wild animals.
A new study identifies at least 16 distinct wasp species previously grouped as one, Ormyrus labotus, which lays eggs in over 65 insect species. The discovery highlights the importance of seeking out hidden diversity and underscores the need for precise identification to understand ecosystem health.
Researchers discovered a new species of parasitoid wasp that forms star-shaped cocoon masses suspended by threads up to 1 meter long, providing protection against natural enemies. The structure can accommodate over 100 cocoons and is believed to help the wasps survive during critical periods.
A single butterfly species introduced to an island in the 1990s had a significant impact on several insect populations, leading to genetic decline and high extinction risk for some species. The parasitoid wasp's mobility and symbiotic bacterial relationships played key roles in shaping this outcome.
Researchers at the University of Turku have discovered hundreds of previously unknown insect species, including a parasitoid wasp that glitters like an electric blue jewel. The newly found Dolichomitus meii wasp is unique in its large size and striking coloration, with wings that shimmer golden yellow.
A University of Helsinki study reveals how micro-climate shapes insect communities, herbivory rates, and parasitism in the North. Climate change dramatically reshapes northern ecosystems.
A newly discovered parasitoid wasp has been found to dive underwater for several seconds to attack and pull out caterpillar hosts. The wasp's unusual behavior is reminiscent of the Japanese monster Godzilla.
Scientists at UAT University in Mexico discovered a new species of Darwin wasp, Stethantyx covida, during the 2020 global quarantine period. The species belongs to the Ichneumonidae family and measures 3.5mm in length.
Researchers found climate change impacts parasitoid wasps and flies, altering ratios between warm- and cold-adapted species. This study provides insights into how global warming affects ecosystems, increasing understanding of ecology and potential solutions.
A parasitic wasp species has been discovered that can control a major pest affecting oilseed rape crops. The wasp, Microctonus brassicae, lays eggs within the beetle's body, rendering it sterile and causing its death.
A field experiment with a leaf galling fly and its parasitic wasps found that eliminating natural enemies constrains the fly's evolution toward only one optimal solution. This loss of genetic diversity may make it harder for the fly to adapt to changing environments.
The new monograph presents a total of 2,999 valid extant species belonging to 82 genera and features extensive colour illustrations. The publication provides detailed species distributions, host-parasitoid associations, and summary of available DNA barcodes, offering a comprehensive reference for researchers and biocontrol practitioners.
New research has identified three parasitoid species that could help control the fall armyworm, with potential for use in Integrated Pest Management plans. The study suggests Chelonus bifoveolatus, Coccygidum luteum, and Telenomus remus as viable biological control agents, offering a sustainable alternative to synthetic insecticides.
Scientists report declines in caterpillar diversity and density, as well as losses in biocontrol of herbivores by parasitoids. Climate change is partly blamed for these changes, with increased precipitation variability and shifts in mean temperatures affecting ecosystems.
Researchers discover 15 new species of parasitoid wasps that manipulate spider behavior to protect their young. The wasps' complex web-spinning abilities are a rare phenomenon in nature.
A parasitic wasp, Idris elba, has been discovered to target the eggs of an invasive stink bug, bagrada bug, which affects cruciferous vegetables. The finding marks a significant step toward developing natural control measures for the pest.
Researchers describe two new African tropical parasitoid wasp species, Epirhyssa quagga and Epirhyssa johanna, which are among the largest wasps known. The discovery expands understanding of parasitoid insect diversity in tropical forests.
Researchers found that background noise inhibits parasitoid flies' ability to locate cricket calls, suggesting a potential fitness cost for males trying to find mates. This altered soundscapes may influence the evolution of host-parasitoid relationships.
Researchers found that herbivores like cutworm larvae can detect and respond to plant volatiles, triggering an immune response and protecting against parasitoid attacks. This unique ability allows the insects to 'smell' chemicals and counteract, revealing a new mechanism of communication between plants and their enemies.
Researchers at University of Turku investigate parasitoid wasp diversity in Kibale National Park, Uganda, finding that species abundance varies with weather and vegetation conditions. The study contributes to global understanding of parasitoid insect diversity and highlights the urgent need to protect tropical biodiversity.
Researchers have confirmed the presence of Telenomus remus, an egg parasitoid that could be a vital tool in fighting fall armyworm in Africa. The species has been shown to provide full control of fall armyworm with an 80-100 percent parasitism rate.
Research found that combining insecticide thiacloprid with fungicide tebuconazole increases toxic effects on parasitoid wasps, potentially harming ecosystems. This synergy is a concern for agroecosystems and should influence pesticide risk assessment.
A non-native species of wasp, the samurai wasp, has been identified in British Columbia, Canada, prior to formal approval for its introduction. The wasp is a natural parasitoid of the brown marmorated stink bug, a globally spreading agricultural pest native to Asia.
The study reveals 21 new parasitoid wasp species, updating the genus count to 27 and providing a systematic revision. The wasps' unique characteristics, such as large size and vivid coloration, suggest they likely parasitize orthopterans like grasshoppers and crickets.
New research reveals that night-time lighting from streetlights and other sources can change the way different species interact. Low levels of artificial lighting enhance the hunting advantage of parasitoid wasps, leading to a reduction in aphid populations.
A new parasitoid wasp species, Clistopyga crassicaudata, has been discovered in the Amazon with an exceptionally large stinger used for both laying eggs and injecting venom. The species belongs to a rare genus specializing in laying eggs into spiders or spider egg-sacs.
Researchers studying a new species of parasitoid wasp discovered it has a unique saw-like spine structure that allows it to break free from its host. The wasp, Dendrocerus scutellaris, is likely an endoparasitoid, feeding on live insects.
Researchers developed a method to predict parasitism rates using interaction preferences, allowing for efficient prediction without extensive field data. The approach was tested in three countries and found consistent patterns, enabling the design of models that capture systematic shifts in interaction preferences.
A new species of primitive monotrysian micromoth, Cecidonius pampeanus, has been discovered in Brazil, inducing noticeable galls on the Uruguayan pepper tree. The larvae's low survival rate and lack of gene flow amongst populations threaten their extinction.
A collaborative effort between citizen volunteers and researchers has led to the identification of seven fly species that parasitize monarch butterfly caterpillars. The study found that 9.8% of monitored monarchs were parasitized, with Lespesia archippivora being the most abundant species.
The discovery of 16 new fungus gnat species in the Allpahuayo-Mishana National Reserve sheds light on the region's remarkable biodiversity. The presence of a diverse array of parasitoid wasps suggests a high level of interdependence between rainforest species.
Scientists have identified a previously unknown virus affecting parasitoid wasp species, reducing female offspring and extending lifespan. The discovery has implications for understanding viral transmission in insects.
Researchers will investigate how adaptations in one insect species allow others to follow, generating new biodiversity. The study focuses on the apple maggot fly and its parasitoid wasps, exploring how shifting life histories impact species interactions and ecosystem diversity.
Researchers discovered the optimal temperature of 25 degrees Celsius for Spathius galinae, a host-specific parasitic wasp targeting emerald ash borer. The wasp's unique ability to detect vibrations in bark allows it to locate larvae and is highly host-specific, minimizing the risk of impact on other species.
Research found parasitoid wasps can convert up to 90% of prey body mass into biomass, contradicting previous estimates of food chain lengths.
A study by Michigan State University researchers found that changes in a new species of fruit fly have an almost domino effect on several species, including parasitic wasps. The research reveals how these sequential events can generate a large number of species in a short period.
Researchers found that two wasp species preferred different types of manure, highlighting the importance of identifying fly species for effective control. The study provides guidance on releasing wasps at the right time and frequency to manage horse flies sustainably.
Scientists have discovered a new parasitoid wasp species that can kill up to 25% of the Asian fly larvae, a widely spread invasive pest corrupting large parts of the pigeon pea crops. This natural enemy has the potential to be a biocontrol agent, offering a promising solution for the Dominican Republic's economic losses estimated at 76%.
Researchers report brown widow spider discovery in Tahiti and Cook Islands, but caution against alarm. The non-aggressive nature of the spider and a natural control agent make it less of a concern.
Researchers have identified two new species of parasitoid wasps with remarkable morphology, including the Pteromalus briani wasp's protruding hind legs and the P. janstai wasp's flattened middle section. These discoveries highlight the potential for new species to be discovered in thoroughly explored regions.
A new study documents the presence of Philornis downsi at two sites near Ecuador's coast, harming 37 bird species, including the streak-headed woodcreeper and fasciated wren. A parasitoid wasp that attacks the flies has also been discovered.
A new study reveals that heat favours the production of male progeny in parasitoid insects, while cold temperatures impair gender selection. The research found an 80% increase in male offspring at high temperatures.
A recent study published in ZooKeys identified 186 new species of Microgastrinae wasps from Area de Conservación Guanacaste in Costa Rica. The findings suggest that parasitoid wasps are more specialized than previously thought, with most species only parasitizing a few moth or butterfly species.
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.