| Stem rot | |
|---|---|
 |
|
| 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[]
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[]
Lift and destroy badly affected plants.
If the plant is only partially affected; cut out the diseased area.
Chemical[]
Fungicidal sprays are no longer available for treating this disease.
Prevention[]
Sterilise greenhouse and equipment between crops.[1]
References[]
- ↑ a b c Hessayon. D.G. (2009). The Vegetable & Herb Expert. Transworld Publishers, London. p 103. ISBN 9780903505468.