SURVIVAL OF COLLETORICHUM ACUTATUM ON ALTERNATE HOSTS
The fungal pathogen Colletotrichum acutatum causes anthracnose disease of fruit and other plant parts and has the potential of rapidly destroying the whole crop. In 2008, C. acutatum was considered a quarantine pathogen in the European Union, but its status has now been changed to a nursery pathogen. Survival in weed debris and living perennial plants was studied with artificially infected plant material. In Finnish conditions the pathogen was able to survive the growing season well in dead plant tissues of many weed species. However, only in Taraxacum vulgare, Stellaria media, Trifolium repens and caraway (Carum carvi) did the pathogen survive the winter and the subsequent summer. Some inoculated perennial weeds (Tripleurospermum inodorum, Plantago major, Mentha sp., Ranunculus repens and Trifolium repens) were also able to over-winter in living plants.
Parikka , P. and Lemmetty, A. (2012). SURVIVAL OF COLLETORICHUM ACUTATUM ON ALTERNATE HOSTS . Acta Hortic. 926, 645-649