Colletotrichum acutatum (weed pathogen)
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Colletotrichum acutatum (weed pathogen) J.H. Simmonds 1968
This species of fungus causes anthracnose diseases on a large variety of plants. It is mainly of concern as a pathogen of crops (see Colletotrichum acutatum on crops), but also infects some species of weeds. Some forms of them are regarded as being specific to certain weeds like Colletotrichum acutatum f.sp. hakeae which infects the invasive needlebush, Hakea sericea (e.g. see Gordon and Fourie, 2001). These are being studied as possible biological control agents of some weeds.