Fungal phytotoxins are natural secondary metabolites produced by plant pathogenic
fungi during host–pathogen interactions. They have received considerable particular attention
for elucidating disease etiology, and consequently to design strategies for disease control.
Due to wide differences in their chemical structures, these toxic metabolites have different
ecological and environmental roles and mechanisms of action. This review aims at summarizing
the studies on the possible use of these metabolites as tools in biological and integrated
weed management, e.g. as: novel and environmentally friendly herbicides; lead for
novel compounds; sources of novel mechanisms of action. Moreover, the limiting factors for
utilizing those metabolites in practice will also be briefly discussed.