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).