high severity
Madoa ya Zambarau ya VitunguuIdentification & Treatment Guide 2026
Alternaria porri · Family: Pleosporaceae
Madoa ya zambarau ya vitunguu yanasababishwa na Alternaria. Piga dawa kwa wakati.
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highMadoa ya Zambarau ya Vitunguu
- Affects
- leavesseed stalksbulbs
- Peak Season
- Warm humid weather (25-30°C), rainy season; heavy dew periods
- Spread Risk
- Moderate
- Spread By
- Airborne conidia, rain splash, infected crop debris
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Symptoms: What does Madoa ya Zambarau ya Vitunguu look like?
Visual identification guide — tap each stage for details
Hatua ya Mapema
Small white sunken spots that turn purple
Madoa madogo ya maji kwenye majani.
Hatua ya Kati
Zonate purplish-brown elliptical lesions
Madoa makubwa ya zambarau yenye pete za nyeusi.
Hatua ya Mwisho
Leaf girdling and foliage collapse
Majani yote yamekauka. Vitunguu ni vidogo.
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