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Wheat (Triticum aestivum)-Leaf Rust (Brown Rust) March 2023 See: Fungicide Effectiveness as Seed Treatments for Cereal Diseases Cause A fungus, Puccinia triticina (formerly P. recondita f. sp. tritici), which overwinters on volunteer wheat, barley, and ce ...

Wheat (Triticum aestivum)-Loose Smut March 2023 See: Fungicide Effectiveness as Seed Treatments for Cereal Diseases Cause A fungus, Ustilago tritici, carried inside seed, infects wheat, triticale, rye, and some grasses. Wind-blown spores infect flowers an ...

Wheat (Triticum aestivum)-Nematode, Cereal Cyst March 2023 Cause The cereal cyst nematodes, Heterodera avenae and H. filipjevi, occur in at least seven Western States including Idaho, Washington, Oregon, and California. This nematode has a wide host range ...

Wheat (Triticum aestivum)-Nematode, Root-knot March 2023 Cause The root-knot nematode, Meloidogyne naasi, lives on roots of barley, wheat, other cereals, and grasses, primarily in heavy soils. Populations of infective juveniles are large only in spring. S ...

Wheat (Triticum aestivum)-Nematode, Root-lesion March 2023 by R. Smiley and C.M. Ocamb See: Table "Plant resistance to root lesion nematodes, Pratylenchus neglectus and P. thornei, in the Pacific Northwest" Cause Several species of lesion nemato ...

Wheat (Triticum aestivum)-Physiologic Leaf Spot March 2023 See: Wheat (Triticum aestivum)- Bacterial Streak and Black Chaff (Bacterial Streak) Cause Often the cause is unknown, but it may be a deficiency or imbalance in mineral nutrition (especially minor ...

Wheat (Triticum aestivum)-Powdery Mildew March 2023 Cause The fungus, Blumeria graminis (syn. = Erysiphe graminis). Powdery mildew survives as either chasmothecia or as mycelium. Asexual (conidia) or sexual spores (ascospores formed in the chasmothecia) p ...

Wheat (Triticum aestivum)-Pythium Root Rot March 2023 See: Fungicide Effectiveness as Seed Treatments for Cereal Diseases Cause Pythium spp. (syn. Globisporangium spp.) are fungus-like microorganisms that live for years in soil and on old root debris, par ...

Wheat (Triticum aestivum)-Rhizoctonia Root Rot (Bare Patch) March 2023 See: Barley (Hordeum vulgare)- Rhizoctonia Root Rot (Bare Patch) Chemical control Seed treatment is helpful. Selecting the right chemical depends on the field's history and the fu ...

Wheat (Triticum aestivum)-Fusarium Head Blight (Scab) March 2023 Cause Several species of Fusarium can cause scab, including: F. graminearum, F. avenaceum, F. culmorum, and Microdochium nivale (formerly Fusarium nivale). These fungal species easily reside ...