Anthracnose caused by Colletotrichum cereale
View Larger
This sample from a poa annua green shows the gross symptoms of anthracnose (top), as well as the black acervuli (lower left) that you can see on the foliage with a hand lens. In the lower right hand image, the fungal condiospores are shown, as seen under the microscope. For information on anthracnose management, see this article on anthracnose
