Yellow Rust (Stripe Rust)
Puccinia striiformis
Basic Details
Description
Taxonomy
Features
Translations
Basic Details
NameYellow Rust (Stripe Rust)
DescriptionYellow rust appears as parallel rows of bright yellow-orange pustules on cereal leaves. Identify these striking 'stripes' early to prevent massive grain yield loss.
TypeFungus
FamilyPucciniastraceae
GenusPuccinia
Taxonomy & Features
PhylumBasidiomycota
SubphylumPucciniomycotina
ClassPucciniomycetes
OrderPucciniales
Features
- A major fungal disease of wheat, barley, and other cereals caused by Puccinia striiformis. It is one of the most damaging diseases of small grains worldwide
- Distinctive symptoms include long, narrow, yellow-to-orange streaks or stripes running parallel to the leaf veins. These stripes consist of tiny powdery pustules
- Both the upper and lower surfaces of the leaves can be affected. In severe cases, the entire leaf may turn yellow, wither, and die prematurely
- Infection can spread to the grain head (spike). Spores can be found between the grain and the glumes, resulting in shriveled and lightweight kernels
- Thrives in cool (10-15°C) and moist conditions with high humidity. It is often a spring disease, but can appear whenever the weather is suitable
- The fungus overwinters on 'green bridge' plants like volunteer wheat and certain wild grasses, releasing spores that are carried long distances by wind
- Severely affects the plant's ability to photosynthesize, reducing the number of tillers and significantly lowering the overall test weight of the grain
- Can have multiple cycles in a single growing season. Under favorable conditions, an entire field can be infected within a matter of weeks
- Prevent by planting resistant wheat varieties and eliminating volunteer cereal plants and host grasses before sowing the main crop
- Control by applying systemic fungicides like triazoles (e.g., tebuconazole) when the first signs of the disease appear in the field
Names in Different Languages
Latin / ScientificPuccinia striiformis
English (Alternate)Stripe rust
Hindiपीला रतुआ (Peela ratua)
Tamilமஞ்சள் துரு நோய் (Manjal thuru noy)
Teluguపసుపు కుంకుమ తెగులు (Pasupu kunkuma tegulu)
Malayalamമഞ്ഞ തുരുമ്പ് (Mañña turump)
Kannadaಹಳದಿ ತುಕ್ಕು ರೋಗ (Haḷadi tukku rōga)
Sanskritपीत-किटिभ (Pīta-kiṭibha)
Bengaliহলুদ মরিচা রোগ (Holud moricha rog)
Frenchrouille jaune
Russianжёлтая ржавчина (zhëltaya rzhavchina)
Spanishroya amarilla
GermanGelbrost
