Anthracnose complex symptoms on Strawberry
Anthracnose complex (fungi - Colletotrichum spp.): All plant
parts are susceptible to one of the three major fungal species.
Crown rot, caused by C. fragariae, is primarily a plant
production problem in annual systems. Plants become infected in
nurseries but show no symptoms until transplanted to production
fields. High temperatures trigger symptom development. Plants
die quickly. It is essential to acquire disease free
transplants. The other Colletotrichum species cause fruit rot,
flower blight or leaf spots. Stolons and petioles can also be
infected. Rigorous fungicide programs are necessary to minimize
losses to anthracnose diseases. Under favorable conditions for
disease development, chemical control may give disappointing
results. Varieties vary in susceptibility.
January, 1996
