1994). Other forms show evidence of convergent evolution: several genotypes have independently evolved the ability to parasitize the same plant species, for example, F. oxysporum f.sp. cubense (O’Donnell et al. 1998).

BACKGROUND ON THE SPECIFIC FUNGI

Biological Control of Cannabis with Fusarium oxysporum f.sp. cannabis

Plants in the genus Cannabis, including C. sativa (fiber hemp and cannabis), are attacked by a number of pathogens, some of which may cause serious damage or plant death. A review of scientific literature on cannabis pathogens by McPartland (1992) identified at least 88 fungal species that attack cannabis. Among those fungi are several Fusarium species that cause damping off, stem canker, root rot, and wilt (McPartland 1996). Fusarium wilt of hemp, caused by F. oxysporum



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