During my planting season, fog & frost spoil plants by making them fall sick with Botrytis as told by my neighbor. I usually notice parts burning after foggy day or night. Later plant completely turns brown, stems rot & break. As far as I experienced, frost is not as big a problem as the fog. I use fungicide but results in vain. What precaution or measures I can adopt before fog & frost season begins to prevent, cure or at least reduce the number of plants falling sick? Thanks.