Insecticidal soaps, horticultural oils, and many insect growth regulators are more compatible with their release than other insecticides. It is more effective than Encarsia against the silverleaf whitefly. Because adults are highly attracted to yellow sticky cards, you should consider using fewer than the normal number of yellow sticky cards. Insect Pathogens Beauvaria bassiania is a common, soilborne fungus that occurs worldwide. Two strains of this fungus, Naturalis O and Botanigard, are commercially available.
Fungal spores infect the insect through the cuticle.
The insect dies as a fungal toxin weakens its immune system. Thorough spray coverage is needed to insure that the fungal spores target the insect and begin the infection process. Do not apply with fungicides or in a spray tank with fungicide residues. Insects and Related Pests of Flowers and Foliage Plants. Some important, common, and potential pests in the southeastern United States.