Back to top

Snapdragon - Anthracnose (Colletotrichum species)

Snapdragon - Anthracnose (Colletotrichum species)
Snapdragon - Anthracnose (Colletotrichum species)

Anthracnose diseases are caused by species of Colletotrichum, Gloeosporium, and Glomerella. They are characterized by fruiting bodies that erupt through the plant epidermis and are typically black. Many species of anthracnose have wide host ranges and persist in infected plant debris. Remove infected plants and discard. Drench adjacent plants with a fungicide. Champ, Champion, Kocide, KOP-Hydroxide, Bayleton,Cygnus, Eagle, Fosphite, Heritage, Systhane, and Manzate 80 WP are registered for outdoor ornamentals and Colletotrichum diseases. Start with healthy transplants in a well drained soil, provide balanced nutrition, and avoid over-watering. Grow plants on raised benches to prevent contamination from native soil and start with sanitized pots, flats, and benches.