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Wheat leaf rust (Puccinia triticina) is a fungal disease that affects wheat, barley, rye stems, leaves and grains. In temperate zones it is destructive on winter wheat because the pathogen overwinters. Infections can lead up to 20% yield loss. The pathogen is a Puccinia rust fungus.
P. graminis (stem rust of wheat and Kentucky bluegrass, or black rust of cereals); primary hosts include: Kentucky bluegrass, barley, and wheat; Common barberry is the alternate host. Heteroecious and macrocyclic; P. hemerocallidis (daylily rust); daylily is primary host; Patrinia sp is alternate host. Heteroecious and macrocyclic
Wheat rusts include three types of Pucciniae: P. triticina , wheat leaf rust , leaf rust, wheat brown rust, or brown rust P. graminis , stem rust , wheat stem rust, barley stem rust, or black rust
Stem rust = black rust Puccinia graminis. Puccinia graminis f.sp. tritici (Ug99) Storage molds Aspergillus spp. Penicillium spp. and others; Stripe rust = yellow rust Puccinia striiformis; Uredo glumarum [anamorph] Take-all Gaeumannomyces graminis var. tritici; Gaeumannomyces graminis var. avenae; Tan spot = yellow leaf spot, red smudge ...
Yellow rust distribution in winter triticale. Wheat yellow rust (Puccinia striiformis f.sp. tritici), also known as wheat stripe rust, is one of the three major wheat rust diseases, along with stem rust of wheat (Puccinia graminis f.sp. tritici) and leaf rust (Puccinia triticina f.sp. tritici).
Puccinia striiformis - Stripe rust, also known as yellow rust; Puccinia triticina - Wheat leaf rust, also known as brown rust; Puccinia punctiformis - Canada thistle rust [4] The rust species Puccinia obtegens has shown some promise for controlling Canada thistle, but it must be used in conjunction with other control measures to be effective. [5]
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The characteristic rust color on stems and leaves is typical of a general stem rust as well as any variation of this type of fungus. Different from most fungi, the rust variations have five spore stages and alternate between two hosts. Wheat is the primary host, and barberry is the alternate host. [citation needed]