2/13/2019 0 Comments Wheat Diseases And Pests PdfContents • • • • • • • • Bacterial diseases [ ] Bacterial diseases Bacterial leaf blight • subsp. Syringae Bacterial mosaic • subsp. Tessellarius Bacterial sheath rot • Basal glume rot • pv. Atrofaciens Black chaff = bacterial streak • pv. Translucens Pink seed • Erwinia rhapontici Spike blight = gummosis • • Clavibacter tritici • Corynebacterium michiganense pv. Tritici • Clavibacter iranicus Fungal diseases [ ] Fungal diseases Alternaria leaf blight • • ( Colletotrichum graminicola) Ascochyta leaf spot • Aureobasidium decay • • Black head molds = sooty molds • spp. • and other genera = kernel smudge associated with fungal infection, primarily: • spp. Cephalosporium stripe • • • • • • • [teleomorph] • [anamorph] • Cottony • Crown rot = foot rot, seedling blight, dryland root rot • spp. • • • Group II [anamorph] • • [anamorph] • Dilophospora leaf spot = twist • Downy mildew = crazy top • Dwarf bunt • • • [anamorph] • • [anamorph] • W-pathotype • • [anamorph] • R-pathoytpe False eyespot • Flag smut • Foot rot = dryland foot rot • spp. Low level of production, of which insect pests are chiefly involved. In the Kenyan highlands, total losses due to pests in maize were estimated at 57 percentage, with insect pests being more important than diseases (Grisley, 1997). In Zimbabwe, grain damage of 92 percentage in stored maize was reported due to insect pests. Halo spot • • • • • • • Leptosphaeria leaf spot • • • sp. [anamorph] Loose smut • • • • Microscopica leaf spot • • Phoma spot • spp. • • • Pink snow mold = • • • [teleomorph] Platyspora leaf spot • • • • • • [anamorph] Pythium root rot • • • • • Rhizoctonia root rot • • [teleomorph] Ring spot = Wirrega blotch • • • Scab = head blight = Fusarium head blight (FHB) • spp. • • Group II [anamorph] • • [anamorph] • • • • [teleomorph] Sclerotinia snow mold = snow scald • • Sclerotium wilt (see Southern blight) • • [teleomorph] Septoria blotch • • [teleomorph] Sharp eyespot • • [teleomorph] Snow rot • spp. • • • Southern blight = Sclerotium base rot • • [teleomorph] Speckled snow mold = gray snow mold or • • • • • [teleomorph] • [anamorph] • Stagonospora blotch • • [anamorph] • • • [anamorph] • Stem rust = black rust • • (Ug99) Storage molds • spp. • Chalkley, D. Systematic Mycology and Microbiology Laboratory, Agricultural Research Service,. From the original on 29 October 2014. • Watkins, John E. Institute of Agriculture and Natural Resources at the University of Nebraska–Lincoln. (PDF) from the original on 25 October 2014. • Zhang, Julia X.; Jin, Yue; Rudd, Jackie C. & Bockelman, Harold E. Crop Science. 48: 223&ndash, 235. (PDF) from the original on 11 August 2011. Texas AgriLife Extension Service, Texas A&M University. 4 November 2008. (PDF) from the original on 11 August 2011. • ^ Wong, J.; et al.. External links [ ] • M. ![]() V.; Murray, T. And Forster, R. (18 December 2000). The American Phytopathological Society. From the original on 6 February 2010. CS1 maint: Multiple names: authors list () Further reading [ ] • Bockus, William W.; et al. Compendium of wheat diseases and pests (third ed.). Paul, Minnesota: APS Press. • Wiese, Maurice Victor (1987). Compendium of Wheat Diseases (second ed.). ![]() Paul, Minnesota: APS Press., earlier but more detail • Gair, R,; Jenkins, J. E.; Lester, E. & Bassett, Peter (1987). Cereal Pests and Diseases (fourth ed.). Ipswich, England: Farming Press. CS1 maint: Multiple names: authors list (). Singles happy end rar files.
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