entomopathogenic fungi – Page 3

Bioprospecting of four Beauveria bassiana strains and their potential as biological control agents for Anastrepha ludens Loew 1873 (Diptera: Tephritidae)

mycolabadmin

Scientists in Mexico tested four native strains of a fungus called Beauveria bassiana to see if they could control the Mexican fruit fly, which damages mango and orange crops. The fungal strains were highly effective, killing over 80% of the fruit flies in laboratory tests. The results suggest that using fungi naturally found in the region could be a more effective and environmentally friendly way to protect fruit crops compared to traditional pesticides.

Molecular characterization of four novel mycoviruses in entomopathogenic and nematophagous fungi

mycolabadmin

Scientists discovered four new types of viruses that infect specific fungi used for pest control. These fungi naturally kill insects and parasitic worms, making them valuable alternatives to chemical pesticides. Understanding the viruses in these beneficial fungi could help improve their effectiveness as biological control agents and reveal new ecological relationships.

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

mycolabadmin

A destructive pine forest pest called Cephalcia chuxiongica causes significant damage to forests in China. Researchers discovered that a fungus called Clonostachys rogersoniana can effectively kill this pest by uniquely infecting it through breathing holes called spiracles. This fungus-based biological control offers an environmentally friendly alternative to chemical pesticides, potentially protecting China’s forests while reducing chemical pollution.

Microcycle Conidia Production in an Entomopathogenic Fungus Beauveria bassiana: The Role of Chitin Deacetylase in the Conidiation and the Contribution of Nanocoating in Conidial Stability

mycolabadmin

Scientists studied how a fungus called Beauveria bassiana can produce spores more efficiently for pest control. They found that creating spores directly from other spores (microcycle conidiation) produces five times more spores in less time. Coating these spores with special nano-sized particles made them more stable in heat and sunlight while keeping them deadly to pest insects like the tobacco armyworm.

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

mycolabadmin

Researchers tested seventeen types of fungi that infect insects to see if they could control the olive fruit fly, a major pest in Greece that damages olive crops. Using fungi from local Greek soil samples, they exposed young olive fruit flies to different fungal treatments both in soil and without soil. Some fungi, particularly Aspergillus flavus and Aspergillus keveii, were highly effective at killing the flies and preventing them from reproducing normally. These results suggest that using these naturally occurring fungi could be a safer alternative to chemical pesticides for protecting olive groves.

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

mycolabadmin

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

mycolabadmin

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

mycolabadmin

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

mycolabadmin

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

mycolabadmin

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.

Research Keyword: entomopathogenic fungi