Eggplant anthracnose (Colletotrichum melongena) – identify and control
The eggplant anthracnose (Colletotrichum melongena) was first reported in 1828 in Russia and currently, this disease is spread in all European countries.
Symptoms. The eggplant anthracnose appears in the second half of August and the beginning of September, when the fruit shows the appearance of circular or oval spots, brown. The tissues in the center of the 2-10 mm spots begin to sink, the fruit starts to rot and the spots turn a whitish-grey color, with small black dots, representing the fruiting bodies of the fungus, being seen on its edge.
The pathogen. Colletotrichum melongena, the fungus, resists from one year to another on the remains of infected fruits or infected seeds. During vegetation, wind and irrigation water carry spores that will produce new infections in humid weather and temperatures of 23-28°C.
Prevention and control. In vegetable crop rotations, the remaining spores from previous crops must be taken into account. When the crop is established, the seed will be chemically disinfected.
Preventive measures consist in gathering and burning the infected fruits or burying them. During the growing season, treatments with specific fungicides are applied.
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