entomopathogenic fungi – Page 4

Evaluating Beauveria bassiana Strains for Insect Pest Control and Endophytic Colonization in Wheat

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Scientists tested three strains of a beneficial fungus called Beauveria bassiana to control crop-damaging insects and promote wheat growth. The best-performing strain, CBM1, successfully killed multiple types of pest insects and colonized wheat plants when applied to the soil. Wheat plants colonized with this fungus grew taller with longer roots and showed significantly better protection against fall armyworms, suggesting this fungus could be a valuable tool for sustainable, pesticide-free crop protection.

Introducing a global database of entomopathogenic fungi and their host associations

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Scientists have created a comprehensive online database called EntomoFun 1.0 that catalogs nearly 1,800 documented cases of fungi that infect insects worldwide. This database brings together information scattered across hundreds of scientific papers and museum collections, showing which fungal species infect which insects and where these interactions occur geographically. This tool will help researchers understand how these fungal pathogens affect insect populations and ecosystems, and may eventually lead to better pest management strategies.

A mycovirus shaped insect-pathogenic and non-pathogenic phenotypes in a fungal biocontrol agent

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Scientists discovered that a virus living inside a beneficial fungus is responsible for the fungus’s ability to kill insect pests. When they removed the virus, the fungus completely lost its ability to penetrate and infect insects through their skin, but could still cause infection if injected directly into the insect’s body. This finding suggests that the virus controls a key enzyme needed for the fungus to break through the insect’s protective outer layer, opening new possibilities for creating more effective biological pest control agents.

Chemical clues to infection: A pilot study on the differential secondary metabolite production during the life cycle of selected Cordyceps species

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This study examined two types of parasitic fungi (Cordyceps javanica and Cordyceps blackwelliae) that infect insects, comparing how they kill their hosts and what chemical compounds they produce during infection. Researchers found that each species uses different toxic molecules to infect insects, with C. javanica being more deadly and producing diverse compounds called beauveriolides. By analyzing infected insect corpses, scientists provided the first direct evidence that these toxic compounds are actually made during real infections, not just in laboratory cultures.

UV-Induced Mutants of Metarhizium anisopliae: Improved Biological Parameters, Resistance to Stressful Factors, and Comparative Transcriptomic Analysis

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Scientists used UV light to create improved mutant strains of a fungus that naturally kills insect pests. The best mutant strain showed increased ability to survive harsh environmental conditions like heat and oxidative stress, while becoming more effective at infecting target pest insects. This improvement makes the fungus more practical for use as a natural pesticide in fields exposed to sunlight. Gene analysis revealed the mutant fungi enhanced certain protective proteins while reducing reliance on traditional antioxidant systems.

Effect of Rare, Locally Isolated Entomopathogenic Fungi on the Survival of Bactrocera oleae Pupae in Laboratory Soil Conditions

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Researchers tested seventeen types of fungi as natural pest control for the olive fruit fly, a major pest that damages olive crops in Greece. They found that several fungal species, especially Aspergillus flavus and Aspergillus contaminans, were highly effective at killing fly pupae in soil conditions. These fungi could offer farmers an eco-friendly alternative to toxic chemical pesticides, helping improve olive oil quality while protecting beneficial insects.

Beauveria felina Accelerates Growth When Competing With Other Potential Endophytes

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Scientists studied how Beauveria felina, a fungus used to fight crop pests, grows when competing with other fungi naturally found in plants. Surprisingly, B. felina grew faster when other fungi were present, making it an even stronger candidate for pest control. However, the researchers found complex interactions between the fungi that need more study before using B. felina widely in agriculture.

Isolation and Characterization of a Native Metarhizium rileyi Strain Mrpgbm2408 from Paralipsa gularis in Maize: First Data on Efficacy and Enzymatic Host Response Dynamics

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Scientists in China discovered a naturally occurring fungus (Metarhizium rileyi) that effectively kills a destructive maize pest called Paralipsa gularis. When the fungus infects the pest larvae, it disrupts their natural defense enzymes and causes high mortality rates. This fungus could replace harmful chemical pesticides and provide a sustainable way to protect crops while protecting the environment.

The Last of Them: Entomopathogenic Effect of Akanthomyces muscarius on the Scale Insect Pest Toumeyella parvicornis Under Laboratory Conditions, a Potential Biological Control Candidate

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Scientists discovered that a fungus called Akanthomyces muscarius can effectively kill tortoise scale insects, an invasive pest damaging European stone pine trees. In laboratory tests, this fungus infected and killed nearly all treated insects within a week, outperforming commercial fungal products. These findings suggest this natural fungus could be used as an eco-friendly alternative to chemical pesticides for controlling this destructive pest in urban and natural environments.

Toxicity Assay and Pathogenic Process Analysis of Clonostachys rogersoniana Infecting Cephalcia chuxiongica

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Scientists discovered a fungus called Clonostachys rogersoniana that can kill a major pine forest pest. The fungus enters the pest through small breathing holes called spiracles, which is unusual compared to most fungal infections. Testing showed the fungus kills half the pest population in about 24 hours at relatively low concentrations. This discovery could help protect Chinese pine forests without using harmful chemical pesticides.

Research Topic: entomopathogenic fungi