Chilli plants were infected with some disease. Leaves were wilting as well as necrosis and discolouration of the leaves was observed.
Fig: Infected leaf showing disease symptoms
When infected leaves were observed under foldscope we found oval shaped black lined spores and they are microconidia of Fusarium spp.
Fig: Microconidia of Fusarium spp
Fusarium wilt, widespread plant disease caused by many forms of the soil-inhabiting fungus Fusarium oxysporum . Several hundred plant species are susceptible, including economically important food crops such as sweet potatoes, tomatoes, legumes, melons, and bananas (in which the infection is known as Panama disease).