Guide to Using Metarhizium 

Metarhizium is a biological pesticide. To maximize its effectiveness, you must ensure the spores come into direct contact with the pests in a warm, humid environment.


1. Core Principles

  • Optimal Timing: Apply during late afternoon, on cloudy days, or in light rainMetarhizium spores are highly sensitive to UV light and can be killed by direct sunlight.
  • Environmental Needs:
    • Humidity: Best results occur at >90% relative humidity (essential for spore germination).
    • Temperature: Ideal range is 24°C–28°C (75°F–82°F). Effectiveness drops significantly below 15°C (59°F).
  • Prohibition: don’t mix with chemical fungicides, as they will kill the live fungus.

2. Application by Formulation

  • Oil Suspensions/Emulsions: Dilute with water as per instructions. These are better for low-humidity environments.
  • Wettable Powder (WP):
    • Pre-mix into a paste with a little water before fully diluting.
    • Add a spreader/sticker (e.g., 0.05% vegetable oil or other adjuvants) to help spores stick to the insect’s body.
  • Granules: Best for soil-dwelling pests (grubs, cutworms). Apply via soil mixing, hole application, or banding near the root zone.

3. Pest-Specific Strategies

  • Locusts/Moths: Focus spray on the underside of leaves where pests congregate.
  • Grubs/Soil Pests: Mix with soil or use as a root drench to create a “fungal barrier.”
  • Cockroaches: Dust in cracks and crevices or create baits to leverage “horizontal transfer” (secondary infection within the colony).

4. Key Precautions

  • Storage: Store in a cool, dry place (4°C–10°C) to maintain shelf life.
  • Speed of Action: It is a slow-acting bio-agent. Pests typically die 3–7 days after infection. Use as a preventative measure.
  • Safety: Wear a mask and gloves to avoid potential allergic reactions to fungal spores.

γ-Polyglutamic Acid (γ-PGA): The Premier Fertilizer Synergist for Modern Agriculture

Core Functionalities of γ-Polyglutamic Acid (γ-PGA)

  • Superior Water Retention & Drought Resistance: Its molecular structure, rich in hydrophilic groups, forms a hydrocolloid within the soil. This significantly enhances water-holding capacity and minimizes evaporation.

  • Controlled Release & Nutrient Efficiency:
    • Metal Ion Chelation: γ-PGA chelates essential micronutrients such as Calcium, Magnesium, and Iron, preventing nutrient leaching or soil fixation.
    • NPK Optimization: It reduces nitrogen volatilization while improving the uptake and utilization of phosphorus and potassium fertilizers.

  • Soil Remediation & Health:
    • Structural Improvement: Promotes the formation of soil aggregate structures, leading to better aeration and porosity.
    • Salinity Mitigation: Utilizing its anionic properties, it neutralizes soil alkalinity and alleviates salt-induced root damage.

  • Root System Development: Visibly stimulates crop root growth and increases root density, enhancing natural resistance to pests and diseases.

Ectoine: The Natural Bio-Shield for Crop Resilience



As a powerful natural extremolyte, Ectoine serves as a premier osmoprotectant in modern agriculture, significantly enhancing crop tolerance against environmental extremes.

  • Salinity & Drought Mitigation: By balancing intracellular osmotic pressure, Ectoine prevents cellular dehydration and maintains plant vitality under high-salt and water-deficient conditions.

  • Heavy Metal Remediation: Foliar application of Ectoine has been proven to optimize water management, stabilize photosynthetic systems, and maintain redox homeostasis in crops like maize under cadmium stress.

  • Microbial Bio-protection: When integrated into microbial inoculants (e.g., Rhizobium), Ectoine dramatically increases the survival rate and storage stability of beneficial bacteria, fostering robust plant growth.

  • Thermal Protection: Recent research indicates that Ectoine, in synergy with other biostimulants, bolsters the resistance of seedlings against heat stress.

5-ALA: The “Substance of Life” for Modern Agriculture

5-ALA

Endogenous & Eco-Friendly

  • Natural Origin: A non-protein amino acid naturally present in all living cells. It is biodegradable and leaves zero chemical residue.
  • High Bioactivity: Highly effective even at ultra-low concentrations (ppm levels), making it a cost-efficient biostimulant.

Powerhouse of Photosynthesis

  • Chlorophyll Precursor: As the sole precursor for chlorophyll synthesis, it directly increases greening and photosynthetic efficiency.
  • Energy Booster: Enhances mitochondrial respiration and ATP production, providing the “fuel” needed for critical growth stages like flowering and fruiting.

Unrivaled Stress Resilience

  • Low-Light & Cold Tolerance: Enables crops to maintain growth under insufficient sunlight or low temperatures (ideal for greenhouse and early spring planting).
  • Salinity & Drought Defense: Regulates osmotic pressure and antioxidant enzymes, protecting plants from salt stress and water scarcity.

Premium Crop Quality

  • Natural Coloring: Promotes anthocyanin accumulation for uniform, vibrant fruit color without the side effects of synthetic hormones.
  • Flavor Optimization: Increases soluble sugars and Vitamin C content while balancing acidity for a superior taste profile.

GABA: Strategic Metabolic & Stress Regulator

Product Synergy: Ideal for co-formulation with 5-ALA for a “Resilience + Energy” dual-action effect.

Role: Signaling molecule & Biostimulant.

Stress Management: High resistance to heat, drought, salt, and low-light conditions.

Root Development: Induces root elongation for better N-P-K nutrient efficiency.

Metabolism: Accelerates Nitrogen-to-Protein conversion; reduces fertilizer waste.

Post-Harvest: Delays ripening and spoilage by suppressing ethylene.

Tank-mix Adjuvants: Maximizing Spray Efficiency & Performance

Tank-mix adjuvants are essential substances added directly to the spray tank by growers or operators before application. They are designed to optimize the physical properties of the spray solution, enhance biological efficacy, and minimize environmental risks.


1. Activator Adjuvants: Boosting Biological Potency

These adjuvants focus on enhancing the “active” power of the pesticide by improving attachment, spreading, and penetration on the target surface.

  • Surfactants (Wetting Agents):
    • Organosilicon (e.g., Polyether-modified Trisiloxane): Provides “Super-Wetting” capabilities, drastically reducing surface tension to allow the solution to enter plant stomata.
    • Non-ionic Surfactants (NIS): The most widely used type; they increase the wetting area on leaf surfaces and reduce spray bounce-off.
  • Oil Concentrates:
    • Mineral Oils (White Oils): Increase penetration; ideal for controlling scale insects and spider mites or boosting herbicide performance (caution: avoid high-temperature use to prevent phytotoxicity).
    • Methylated Seed Oils (MSO): Such as methylated soybean oil; highly effective for herbicide enhancement and more environmentally friendly.
  • Penetrants: Accelerate the entry of active ingredients by dissolving or softening the waxy cuticle of the plant.

2. Utility Modifiers: Solving Physical Challenges

These adjuvants address physical hurdles during the spraying process to ensure a uniform mix and precise delivery.

  • Water Conditioners:
    • Ammonium Sulfate (AMS): The gold standard for herbicides; neutralizes Calcium and Magnesium ions in hard water to prevent deactivation of ingredients like Glyphosate.
    • pH Buffers: Maintain the spray solution at the optimal pH (usually slightly acidic) to prevent alkaline hydrolysis of the pesticide.
  • Drift Control Agents: By increasing droplet size or altering rheology, they minimize the “drift” of fine mists—critical for UAV (Drone) applications.
  • Antifoam Agents: Eliminate foam caused by high-speed agitation, preventing overflow and ensuring accurate measurement.
  • Compatibility Agents: Ensure a stable, uniform mix when multiple pesticides or fertilizers are combined, preventing sedimentation or layering.

3. The A.P.P.L.E.S. Mixing Principle

The order of addition is critical for safety and efficacy. Follow this logical sequence:

  1. Water Conditioners first (e.g., AMS) to treat the water source.
  2. Add Solid Formulations (WP, WDG).
  3. Add Liquid Formulations (SC, EC).
  4. Surfactants last (e.g., Organosilicon or NIS).

Application Tips & Best Practices for HaNPV

To maximize the biological power of HaNPV, follow these critical application strategies:

Early Intervention: “Catch Them Small”
Timing is everything. Since the virus requires a multi-day incubation period, it must be applied during the peak egg-hatching stage or the 1st to 2nd instar larval stages. Once larvae reach the 3rd instar or beyond (advanced stages), the control efficacy drops significantly.

Optimal Spraying Window
HaNPV is highly sensitive to UV radiation. For maximum persistence, always apply in the late afternoon or on overcast days. This prevents rapid degradation by sunlight and extends the virus’s active life on the leaf surface.

Synergistic Tank Mixing

  • The “Speed + Stamina” Combo: Mix HaNPV with low doses of chemical pesticides (such as Emamectin Benzoate or Chlorantraniliprole). This leverages the immediate “knockdown” effect of the chemical and the long-term protection of the virus.
  • Performance Boosters: Adding UV-protective adjuvants or feeding stimulants (like molasses or corn syrup) can drastically improve the virus’s stability and encourage pests to consume the treated foliage faster.

Key Advantages of HaNPV in Agriculture

Exceptional Host Specificity with HaNPV
HaNPV targets only cotton bollworms, tobacco budworms, and closely related species with surgical precision. It is completely harmless to humans, livestock, birds, and beneficial predatory insects (such as lacewings and ladybugs), ensuring the natural ecological balance of the farmland remains undisturbed.

Resistance-Free Solution with HaNPV
Rooted in a long-term evolutionary “arms race” between virus and host, pests find it nearly impossible to develop the type of resistance commonly seen with chemical pesticides. This makes HaNPV a formidable weapon against stubborn and highly resistant bollworm populations.

Zero Residue & No Pre-Harvest Interval (PHI) with HaNPV
As a 100% bio-based pesticide, it is non-toxic and leaves no chemical residue. This makes it the ideal choice for organic certification, premium fruit and vegetable production, and high-standard export bases where food safety is paramount.


Mechanism & Action: The “Epidemic” Effect of HaNPV

The Helicoverpa armigera Nucleopolyhedrovirus (HaNPV) operates through a sophisticated biological process that transforms a single infection into a field-wide plague.

  • Mode of Action: A Precise Stomach Poison
    HaNPV acts as a stomach poison. When a bollworm larva consumes leaves treated with the virus, the viral polyhedra dissolve in the highly alkaline environment of the insect’s midgut. This process releases active virus particles that invade the midgut epithelial cells and subsequently spread to the entire body.
  • Lethal Progression: 3 to 7 Days to Impact
    Once infected, the larvae typically perish within 3 to 7 days. A signature trait of this infection is that dead larvae are often found hanging upside down from the top of the plant—a behavior driven by the virus to maximize its spread.
  • The “Liquefaction” Effect & Secondary Infection
    Upon death, the insect’s outer skin ruptures, releasing a liquid filled with billions of new virus particles (often referred to as the “liquefaction” or “melting” phenomenon). This virus-rich fluid is then dispersed by wind and rain, contaminating nearby foliage and triggering a secondary infection cycle. This creates a natural “epidemic” effect that continues to control the pest population long after the initial

Tea Saponin: A Natural, Eco-Friendly Powerhouse for Modern Agriculture

Extracted from the seeds of Camellia plants (such as oil tea and tea trees), Tea Saponin is a natural triterpenoid compound. Renowned for its unique biological activity and environmental safety, it has become an essential tool in sustainable farming.


1. High-Performance Pesticide Synergist with Tea Saponin

As a premium natural non-ionic surfactant, Tea Saponin significantly boosts the efficacy of chemical treatments.

  • Enhanced Wetting & Penetration: It lowers surface tension, allowing sprays to spread evenly and cling to waxy leaves or pest carapaces, facilitating deep penetration.
  • Physical Optimization: Acts as an ideal wetting and dispersing agent for Wettable Powders (WP), improving suspension rates and stability.
  • Reduced Chemical Use: When mixed with insecticides (e.g., at a 1:3 ratio), it drastically improves control over aphids and cabbage caterpillars, allowing farmers to reduce overall pesticide dosage.

2. Natural Biocide & Fungicide with Tea Saponin

Beyond being a helper, Tea Saponin possesses its own potent biological activity.

  • Molluscicide (Snail Control): It is a globally recognized, safe solution for controlling Golden Apple Snails in rice paddies by inducing hemolysis (red blood cell breakdown) in the snails.
  • Broad-Spectrum Insecticide: Provides stomach toxicity and contact killing effects against pests like diamondback moths and aphids.
  • Pathogen Inhibition: Effectively suppresses various fungal diseases, including rice blast, tomato southern blight, and cabbage damping-off.

3. Aquaculture Management (Pond Cleaning) with Tea Saponin

Tea Saponin is a staple in aquaculture for maintaining a healthy environment.

  • Fish Eradication: Used to clear “trash fish,” snails, and harmful insects during pond preparation through its selective hemolytic action.
  • High Safety Profile: It is highly safe for shrimp and crabs (as their blood utilizes hemocyanin rather than hemoglobin), allowing for purification without harming the main stock.
  • Growth Stimulation: Promotes molting in crustaceans, accelerating growth cycles.

4. Soil Health & Plant Growth with Tea Saponin

  • Subsoil Pest Control: Effectively manages underground pests such as cutworms, earthworms, and nematodes in lawns and fields.
  • Growth Promotion: Acts as a natural biostimulant. When used for seed soaking or foliar feeding, it enhances stress resistance and boosts crop yields.
  • Soil Remediation: Supports the degradation of organic pollutants and helps remediate soil contaminated with heavy metals.