Beauveria Bassiana 

 Beauveria bassiana is a naturally occurring fungus used as a microbial insecticide. It infects susceptible insects on contact, so coverage, humidity, timing, and label directions matter more than simply applying a heavy dose. 

Product Overview 

• Product Name: Beauveria Bassiana 

• Category: Pest Control and Plant Protection 

• Product Type: Entomopathogenic fungal biopesticide

 • Form / Texture: Wettable powder, suspension, granules, or oil-based formulation

 • Suitable For: Whiteflies, aphids, thrips, mealybugs, mites, and other pests where the label allows 

• Application: Foliar spray or targeted pest-contact application

 Why Beauveria Bassiana Is Useful 

• Biological option for integrated pest management.

 • Targets insects through fungal infection rather than synthetic chemical poisoning.

 • Useful where repeated broad-spectrum insecticide use is undesirable. 

• Can fit organic-style pest programs if the specific product is allowed. 

Main Components 

• Live spores of Beauveria bassiana strain. 

• Carrier material and wetting agents depending on formulation.

 • Sometimes oil or emulsifier to improve contact.

 Benefits 

• Helps manage soft-bodied pests when coverage is good. 

• Can reduce chemical pesticide dependence.

 • Generally works well in IPM programs with monitoring.

 • Useful for greenhouse, nursery, and field situations where registered. 

Growing and Application Requirements 

• Must contact the pest; it is not a quick knockdown spray. 

• Works better with adequate humidity and moderate temperature.

 • UV light can reduce spore survival, so evening sprays are often preferred.

• Follow the exact product label for crop, pest, dose, and safety interval. 

Usage Instructions 

• Identify the pest before spraying. 

• Mix only the amount needed and keep agitation if required. 

• Spray the underside of leaves and pest hiding areas. 

• Repeat according to label because infection takes time. 

Common Uses

 • Whitefly management • Thrips programs • Aphids • Mealybugs • Greenhouse pest control 

Advantages

 • Biological mode of action.

 • Useful in resistance-management programs. 

• Can be gentler on beneficial insect programs when used carefully.

 Disadvantages or Limitations 

• Slower than many chemical insecticides.

 • Sensitive to harsh weather and UV. 

• Poor coverage gives poor control.

 Maintenance and Storage Tips 

• Apply during cooler, humid periods. 

• Avoid tank mixes that harm fungal spores unless allowed. 

• Store as directed because heat can reduce viability.

 Safety and Precautions 

• Wear gloves, eye protection, and mask or respirator as required by the label. 

• Avoid inhaling spores.

 • Keep away from children, pets, and fish ponds during mixing and spraying. 

Best Plants or Situations 

 • Vegetables • Ornamentals • Nursery plants • Greenhouse crops • Soft-bodied pest programs 

Useful Facts

 • Beauveria kills through infection, so visible pest reduction may take several days. 

• EPA and extension resources treat microbial pesticides as pesticides that still require label discipline. 

Summary 

Beauveria bassiana is a useful biological insect-control tool, especially when applied early and thoroughly. It is natural, but it is still a pesticide and should be handled with proper label-based care. 

References Consulted

 • Cornell NYSIPM - Beauveria bassiana biocontrol fact sheet: https://cals.cornell.edu/new-york-state-integrate d-pest-management/outreach-education/fact-sheets/beauveria-bassiana 

• US EPA - What are biopesticides?: https://www.epa.gov/ingredients-used-pesticide-products/what-are-biopesticides 

• US EPA - Biopesticide active ingredients: https://www.epa.gov/ingredients-used-pesticide-products/biopesticide-active-ingredients