Dextrose Based Ampelomyces quisqualis Powder Formulation (Water Soluble)

Ampelomyces quisqualis is a hyperparasitic fungus used as a specialized bio-fungicide against powdery mildews. It penetrates and destroys mildew mycelia by forming pycnidia inside pathogen colonies. Formulated at 2 × 10⁸ CFU/g  on a talc carrier, it offers targeted disease suppression without phytotoxicity.

Product Specifications

• CFU: 2 × 10⁸ CFU/gper gram 

• Active Content: Spores and mycelium of Ampelomyces quisqualis 

• Carrier: Dextrose powder (ensures stability and foliar adhesion)

Usage Instructions

1. Dosage: 500 g–1 kg/acre in 200 L water; higher rates for severe infections.

2. Timing: Apply at first signs of powdery mildew; reapply every 7–10 days.

3. Target Pathogens:

   • Podosphaera xanthii (cucurbit mildew), Erysiphe necator (grape powdery mildew)

   • Blumeria graminis (cereal mildew), Sphaerotheca pannosa (rose mildew)

4. Method: Spray evenly on leaves (focus on undersides); full canopy coverage.

5. Frequency: 3–4 applications per season; intervals shorten during humid conditions.

6. Compatibility: Avoid sulfur/copper fungicides; compatible with Bacillus subtilis or potassium bicarbonate.

7. Activation: Requires >60% humidity for 6+ hours; irrigate pre-application in dry climates.

8. Safety: Non-toxic to plants, bees, and beneficial mites (Phytoseiulus persimilis).

Suitable Crops

• Vegetables: Cucumber, squash, pumpkin, tomato

• Fruits: Grapes, strawberries, apples, peaches

• Cereals: Wheat, barley (vs. Blumeria graminis)

• Ornamentals: Roses, gerbera, lilacs

• Viticulture: Wine/table grapes (high efficacy against Erysiphe necator)

Storage Instructions

• Temperature: 15–25°C avoid >25°C

• Packaging: PP Bags

• Shelf Life: 24 months 

• Precautions: Avoid repeated temperature fluctuations; discard if clumping occurs.

Key Advantage

Intra-Hyphal Parasitism:
Uniquely colonizes powdery mildew hyphae (Erysiphe, Podosphaera spp.), causing collapse of resistant strains within 48 hours while preserving mycorrhizal fungi.