Stem rot
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Stem rot | |
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A tomato stem showing stem rot | |
Scientific Classification | |
Kingdom: | Fungi |
Phylum: | Ascomycota |
Class: | Dothideomycetes |
Subclass: | Pleosporomycetidae |
Order: | Pleosporales |
Family: | Incertae sedis |
Genus: | Didymella |
Species: | Didymella lyperscopi |
Synonyms | |
Didymella stem rot Ascochyta lycopersici Brunaud, (1887) |
Stem rot is a disease caused by Didymella lyperscopi, a fungal plant pathogen which attacks mature tomato plants.[1]
Symptoms[edit | edit source]
Lower leaves turn yellow and a sunken brown canker appears at the base of the stem. Black dots develop in the cankered area. Disease may spread to other parts of the stem.[1]
Treatment[edit | edit source]
Lift and destroy badly affected plants.
If the plant is only partially affected; cut out the diseased area.
Chemical[edit | edit source]
Fungicidal sprays are no longer available for treating this disease.
Prevention[edit | edit source]
Sterilise greenhouse and equipment between crops.[1] Template:Clrr