Black Rust


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Related to Black Rust: white rust, black iron oxide

Black Rust

 

a plant disease caused by various fungi, both saprophytes and hemiparasites. It affects fruit and berry crops (including citrus, grape, mulberry), cereal grains, hops, house-plants, hothouse plants, and certain forest trees. It occurs mainly in subtropical and tropical climates. Black and dark brown spots and films (mycelia and spore sacs of fungi) appear on affected plants, decreasing photosynthetic activity and obstructing access of air to the tissues. Black rust is especially damaging to spikes and caryopses of cereal grains, lowering the yield and quality of wheat, rye, and millet grains. Control measures consist mainly in destroying aphids and scale insects, upon whose discharges the causative agents feed.

REFERENCES

See references under CERCOSPORIOSIS.
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UG-99, a dangerous kind of Black Rust, has already reached Iran from Yemen and there are apprehensions that it might reach Pakistan.
Henderson], black rust (caused by Puccinia graminis Pers.
The active participation of ICAR in the Borlaug Global Rust Initiative (BGRI) enabled us to screen rust resistant wheat germplasm and develop high productivity wheat variety HD 2967 with resistance to yellow rust, leaf and black rust including Ug99.