high level of humidity is a major factor that causes bud rot. remember that molds love to thrive in humid and dark places. there are ways/preventative measures that a grower can take to divert gray mold from making the precious buds useless. spray neem oil or sesame oil, apply potassium bicarbonate.
when preventative measures fail, try these to fight the molds:
- mix one teaspoon baking soda with one quart of warm water, then spray on the plants every 7-10 days
- spray the plants with sulfur