Does Hydrogen Peroxide Kill Botrytis?

A final suggestion is to completely clean out your greenhouse and disinfect it with a 5-10% bleach solution or a food-grade hydrogen peroxide solution after each season. This will kill any remaining spores and reduce the likelihood of disease for the next season.

How do you kill Botrytis?

Treatment of Botrytis Blight on Plants

Prune off and destroy infected parts of the plant. Disinfect pruners with a ten percent solution of household bleach between cuts to avoid spreading the disease. Destroy infected plant material by burning or bury the debris under at least a foot (31 cm.)

What kills Botrytis cinerea?

Potassium bicarbonate is also effective against botrytis blights. One variety which is in wide organic use is GreenCure Fungicide. This powdered formula, when mixed with water, can be sprayed regularly to reduce fungal growth and deter diseases.