How to use entomopathogenic fungi in organic farming.

Learning how to apply entomopathogenic fungi Biological pest control represents a crucial advancement for farmers seeking operational efficiency without resorting to synthetic chemical pesticides.

These beneficial microorganisms act as natural population regulators, infecting unwanted insects and mites through direct contact with the integument and cuticle of their hosts.

Unlike conventional insecticides that act through ingestion or neurotoxicity, fungal bio-inputs eliminate vectors of agricultural diseases while maintaining the ecological balance and biodiversity of the soil.

We will analyze the main commercial species, appropriate spraying techniques, compatibility with organic fertilization, and good storage practices to protect your crop.

How do microorganisms work in the biological control of pests?

The infection cycle begins when fungal spores germinate on the body of the target insect, producing enzymes capable of degrading the outer protective layer of the cuticle.

After penetrating the physical barrier, the fungus multiplies in the host's hemolymph, releasing secondary metabolites that weaken the pest's organism within a few days.

The death of the insect is followed by conidiogenesis, a process where the microorganism emerges from the corpse, spreading new spores into the environment to infect neighboring individuals.

The correct use of entomopathogenic fungi It gradually reduces the need for harsh interventions, allowing the agroecosystem to develop natural defense mechanisms throughout the growing seasons.

What are the most commonly used species in modern organic agriculture?

The species Beauveria bassiana It stands out in the fight against whiteflies, coffee berry borer, thrips and stink bugs, demonstrating high adaptability to different agricultural crops throughout the country.

The fungus Metarhizium anisopliae It offers superior performance in managing root spittlebugs in sugarcane fields and pastures, in addition to controlling termites and stink bugs with high biological efficiency.

The species Cordyceps fumosorosea (previously Isaria fumosorosea) is widely used in the control of psyllids and mites, preserving pollinating insects and beneficial natural enemies.

Finally, the fungus. Lecanicillium lecanii It acts precisely on aphids and mealybugs in protected environments, requiring controlled relative humidity conditions to express its maximum potential.

Technical Specifications of the Main Commercial Fungal Species

How do weather and time of day affect application in the field?

Ultraviolet radiation emitted by direct sunlight rapidly degrades fungal conidia, reducing the biological viability of bio-inputs applied during the hottest hours.

Read more: Beneficial fungi in organic soil: increased fertility.

Spraying in the late afternoon or on cloudy days ensures that the spores remain protected and hydrated throughout the subsequent night.

The presence of dew and high levels of relative humidity favor the rapid germination of the microorganism's reproductive structures on the pest.

Consult guidelines on the registration of bio-inputs, specifications for biopesticides, and standards for organic farming published by Ministry of Agriculture and Livestock (MAPA) for official guidance.

How can the use of bio-inputs be integrated into integrated pest management?

Mixing beneficial fungi with copper or sulfur solutions can inactivate the spores, requiring a minimum interval of seven days between the application of fungicides and biological products.

The use of vegetable oils as adjuvants in spray solutions protects conidia against desiccation, improving the adhesion of the solution to the leaves.

Find out more: Soil Microbiome in Organic Farming: How Beneficial Bacteria and Fungi Increase Productivity

Maintaining soil vegetation cover and adopting organic fertilization promote the ideal microclimate for the survival and spontaneous multiplication of these microorganisms in the environment.

Apply entomopathogenic fungi Preventive action in the early stages of infestation avoids a rapid increase in pest populations without disrupting the balance of beneficial fauna.

What storage practices ensure the viability of commercial products?

Storing bio-input packages in cool, well-ventilated places, protected from direct sunlight, preserves the germination rate of the formulation's conidia.

Products formulated as wettable powders or concentrated suspensions should be kept in cold storage at temperatures between four and ten degrees Celsius to ensure shelf life.

Read more: How to prevent fungus in pots with plants that like humidity

Thoroughly washing the sprayer tank before preparing the spray mixture prevents residues from previous chemicals from neutralizing the live microorganisms added to the mixture.

Access agricultural research data, technical bulletins on biological control, and field trials made available by [source name/organization]. Brazilian Agricultural Research Corporation (Embrapa) For further study.

Frequently Asked Questions (FAQ)

How long does it take for the entomopathogenic fungus to kill the pest?

The process of infection and elimination of the pest varies between three and seven days after contact, depending on the humidity and temperature conditions of the field.

Are entomopathogenic fungi dangerous to livestock and humans?

No, these microorganisms are highly specific to insects and mites, and are completely harmless to mammals, birds, fish, and humans when applied correctly.

Can I grow these fungi on my own farm?

On-farm production requires rigorous laboratory control, as contamination by toxic fungi can compromise biological efficiency and endanger the crop.

How can you tell if the application of the biological fungus was effective in the crop?

You will observe the emergence of mummified insects covered by an effervescent layer of white, green, or pink color, indicating the emergence of new spores.

Integrate the use of entomopathogenic fungi Organic farming improves soil health, eliminates pests with high precision, and ensures safer food for the market.

Adopting correct application and storage practices ensures the success of biological control and strengthens the sustainability of your crop.

Written by Izabelle

I've been a content strategist for over 4 years, helping brands transform technical topics into meaningful content for their readers. Throughout this time, I've worked in various niches, always combining SEO, audience behavior, and trends to create content that generates genuine connection, not just reach. I like to think that good content is content that explains, connects, and makes reading easy, without losing sight of the underlying intention.

Updated on September 10, 2026