Rhizopus fruit rot

Rhizopus spp.

Initial infections of Rhizopus fruit rot appear as discolored, water-soaked spots on fruit. These lesions enlarge rapidly, releasing enzymes that leave the berry limp, brown, and leaky. Under conditions of high relative humidity, the berry rapidly becomes covered with a coat of white mycelium and sporangiophores. The sporangiophores develop black, spherical sporangia, each containing thousands of spores. When disrupted, these sporulating berries release a cloud containing millions of spores. Rhizopus and mucor fruit rots closely resemble each other and may be difficult to differentiate in the field.

Plant Protection Products