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Northern corn leaf blight (NCLB) or Turcicum leaf blight (TLB) is a foliar disease of corn caused by Exserohilum turcicum, the anamorph of the ascomycete Setosphaeria turcica. With its characteristic cigar-shaped lesions, this disease can cause significant yield loss in susceptible corn hybrids.
Southern corn leaf blight (SCLB) is a fungal disease of maize caused by the plant pathogen Bipolaris maydis (also known as Cochliobolus heterostrophus in its teleomorph state). The fungus is an Ascomycete and can use conidia or ascospores to infect. [ 1 ]
Southern corn leaf blight thrives in the southern United States because unlike NCLB it requires warm weather to develop. During favorable conditions the disease has been documented ruining a whole crop within days when left untreated. [64] Treatment is available with the use of chlorothalonil, mancozeb, and maneb but even this is limited.
Northern corn leaf blight. White blast Crown stalk rot Stripe Setosphaeria turcica. Exserohilum turcicum [anamorph] = Helminthosporium turcicum. Northern corn leaf spot. Helminthosporium ear rot (race 1) Cochliobolus carbonum. Bipolaris zeicola [anamorph] = Helminthosporium carbonum. Penicillium ear rot. Blue eye Blue mold Penicillium spp ...
Leaf sheath lesions are not surrounded by a yellow radiance, but rather a brown or dark purple radiance. [10] This dark brown or purple discoloration on leaf sheaths is also characteristic to northern corn leaf blight (Exserohilum turcicum), southern corn leaf blight (Bipolaris maydis), or northern corn leaf spot (Bipolaris zeicola). Corn grey ...
Setosphaeria turcica (anamorph Exserohilum turcicum; formerly known as Helminthosporium turcicum) is the causal agent of northern corn leaf blight in maize.It is a serious fungal disease prevalent in cooler climates and tropical highlands wherever corn is grown.
Accordingly, many diseases that primarily exhibit this symptom are called blights. Several notable examples are: [citation needed] Late blight of potato, caused by the water mold Phytophthora infestans (Mont.) de Bary, the disease which led to the Great Irish Famine; Southern corn leaf blight, caused by the fungus Cochliobolus heterostrophus ...
On mature plants, yellowish streaks with wavy margins extend along the leaf veins. [1] This leaf blight phase is often prevalent after tasseling and the symptoms look similar to frost damage, drought, nutrient disorders, northern corn leaf blight (caused by Exserohilum turcicum), and particularly Goss's wilt (caused by Clavibacter michiganensis ...
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