Isaria fumosorosea Apopka strain 97

Isaria fumosorosea Apopka strain 97 (formerly known as Paecilomyces fumosoroseus) is a highly specialized entomopathogenic fungus utilized as an active ingredient in biological plant protection products. It serves as a natural alternative to synthetic insecticides, targeting a variety of arthropod pests while maintaining safety for the environment.

The mode of action is characterized by the penetration of the fungus into the host insect. Upon contact, the fungal spores adhere to the insect's cuticle and begin to germinate. By secreting chitinolytic enzymes, the fungus breaches the exoskeleton, invades the insect's body cavity, and kills the host by exhausting its nutrients and releasing fungal toxins.

This biological agent is widely used to manage infestations of greenhouse whiteflies, aphids, thrips, and spider mites. It is particularly effective in high-value cropping systems, including vegetables, ornamental plants, and berries, where sustainable pest management strategies are prioritized to prevent the buildup of pesticide resistance.

The application of this agent requires specific environmental conditions, particularly regarding humidity and temperature. To ensure the optimal infection rate, applications should be timed when humidity levels are sufficient to support fungal growth. Avoiding exposure to direct sunlight during application is also critical, as UV rays can reduce the viability of the fungal spores.

• Effective against major greenhouse pests.
• Compatible with Integrated Pest Management (IPM) programs.
• Leaves no harmful residues on crops.
• Provides a unique mode of action to break resistance cycles.
• Environmentally friendly and non-toxic to most beneficial predators.

Precautions should be taken to avoid prolonged inhalation of dust or aerosolized spores during the preparation of the spray mixture. Protective gear, such as face masks and gloves, is recommended to ensure safety for the applicator. Proper storage, typically in cool and dark conditions, is essential to maintain the high efficacy and viability of the microbial spores.