Ageratum Problems
Symptom	Probable Cause
Brown spots on leaves, grayish mold forms on tissue, gray mold on flowers, leaves, stems soft, rotted	Gray Mold, A Fungal Disease
Leaves yellow, wilt, die	Root Rot, a bacterial disease; replace the plants
Dark lesions on stems; roots rot	Stem Rot, a bacterial disease; replace the plants
Holes chewed in leaves and buds	Corn Earworm
Weakened plants; yellow leaves; leaves discolored; covered with honeydew	Whiteflies
Holes chewed in leaves and buds	Tobacco Budworms
Plant actually disappears	Deer