turcicum leaf blight management

Various ecofriendly approaches like biocontrol agents (Trichoderma harzianum and Pseudomonas fluorescens), extracts of different plants and fungicides were evaluated at G. B. Pant University of Agriculture & Technology, Pantnagar Uttarakhand (India) for managing leaf blight of sorghum caused by Exserohilum turcicum. Disease reactions to Turcicum leaf blight in F 2, F 2:3 and F 2:4 populations. They eventually turn tan colored and may contain dark areas of fungal sporulation. Some features of the site may not work correctly. It is currently probably the most widespread leaf disease on maize in South Africa and although especially severe in the eastern parts of the country e.g. Leonard and suggs. Northern corn leaf blight (NCLB), caused by the fungus Exserohilum turcicum, is an increasingly important disease in the U.S. Corn Belt. hÞbbd```b``õ ’‰Ì–“ïÀd%ˆdg«‘¬KÀä~Éb&“À"`õ¬¹`•ë$£Þv[¿D†‚L`Ì+±ý¼@l&[èˆäi’¥N2012ð~‰ m&䆯Gï ¸/© management of turcicum leaf blight in maize caused by Exserohilum turcicum (pass.) %%EOF The treatment mancozeb 0.25% and combination A report survey and surveillance of maize diseases in North Karnataka. Typical symptoms of northern corn leaf blight are canoe-shaped lesions 1 inch to 6 inches long. A report on survey and surveillance of maize diseases in northern Karnataka. Harlapur SI, Wali MC, Anahosur KH, Muralikrishna S (2000). Additional source of resistance in maize to Exserohilum turcicum. Northern corn leaf blight (NCLB) is a common leaf disease and occurs in all maize growing areas of the world. If much of the Integrated management of turcicum leaf blight of maize caused by Exserohilum turcicum (Pass.) NCLB can cause yield loss if it develops before or during the tasseling and silking phases of corn development. (2013) turcicum leaf blight is ranked as the number one problem and is considered a high research priority of maize in Ethiopia. Although much has been reported on northern corn leaf blight in this regard, information regarding the impact of leaf blight on sorghum is somewhat lacking. Control biológico del complejo de hongos causantes de la mancha foliar en maíz dulce (Zea mays var. Lesions first appear on the lower leaves and increase in size and number until very little living leaf tissue is left. (Agri). 3448 0 obj <>/Filter/FlateDecode/ID[<9AEBB9134968B648AEF7094F194AD7D2><0FC720870044F24E9B47D371A2478B41>]/Index[3424 61]/Info 3423 0 R/Length 119/Prev 967996/Root 3425 0 R/Size 3485/Type/XRef/W[1 3 1]>>stream Thesis, Univ. … Recurrent Selection as a Method for Concentrating Genes for Resistance to Helminthosporium turcicum Leaf Blight in Corn 1. Turcicum leaf blight (also known as northern corn leaf blight) is caused by the fungi Exserohilum turcicum.It is a major constraint to maize production in many maize growing regions worldwide with a growing season characterized by high humidity and moderate temperatures (17 to 27°C). Turcicum leaf blight of maize caused by the fungus Setosphaeria turcica is a serious foliar disease of maize distributed widely throughout the world and causing significant yield losses. Leonard and Suggs. The distribution of F 2 AUDPC in the greenhouse were skewed towards resistance, with a mean AUPDC of 11.01 (Table 1) (Fig.1). Thresholds None established. Epidemiology and Management of Turcicum leaf Blight of Maize Caused by Exserohilum turcicum (Pass.) Agric.Sci.,Dharwad, India. Turcicum or northern corn leaf blight (NCLB) incited by the ascomycete Setosphaeria turcica, anamorph Exserohilum turcicum, is a ubiquitous foliar disease of maize. Under greenhouse conditions the resistant TABLE 1. Summa Phytopathologica, v.41, n.1, p.25-30, 2015. randomized with four replicates. Since the disease survives on infected residue, management practices such as crop rotation and tillage to reduce exposed residue will reduce early-season infection. In higher risk areas, plant populations should be adjusted to reduce the risk of competition and moisture stress. Nataraj K. Studies on toxin production, variability and management of turcicum leaf blight of maize caused by Exserohilum turcicum (Pass.) on Susceptible and Resistant Corn” (). 3484 0 obj <>stream Biological control of the fungi complex that cause leaf spot on sweet corn (Zea mays var. The productivity of the crop is limited partly by the leaf blight disease caused by Exserohilum turcicum. Commun Agric Appl Biol Sci. A perusal of the results indicates that all the treatments are superior in reducing the PDI of turcicum leaf blight of maize over control. KwaZulu-Natal and Mpumalanga, it is common and causes serious yield An inventory and bibliography of maize diseases in India. In breeding for resistance to leaf blight, the germplasm needs to be well-characterized in order to design efficient breeding programs. Stress reduction can play a major role in reducing the risk of infection. Thesis, Univ. Karnataka Journal of Agricultural Sciences, 23(2):372-373. In the moderate and cool climate we will find the Northern Corn Leaf Blight caused by the disease Helminthosporium turcicum . Leonard and Suggs. Leaf blight is one of Exserohi/um turcicum, G/oeoeercospora sorghi, the most,Widely distributed and at times • Present address: AICRP on Pulses, RARS, Lam, Guntur-522 034 (AP). saccharata) with beneficial bacteria. Leonard and Suggs @inproceedings{Harlapur2005EpidemiologyAM, title={Epidemiology and Management of Turcicum leaf Blight of Maize Caused by Exserohilum turcicum … Sci., Dharwad, Karnataka (India), 2009. Leonard and Suggs.Ph.D. The disease is more prevalent in humid weather with temperature between 20–28 °C and causes small cigar-shaped lesions to complete destruction of the foliage. endstream endobj startxref The disease developed and approached 70% disease severity just prior to senescence. Preventative management is especially important for fields at high risk for disease development. in maize K Sethuraman Abstract Field trials were conducted to test verify the effectiveness of various essential oils and neem products for Turcicum leaf blight in different … The lesions are initially bordered by gray-green margins. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. saccharata) con bacterias benéficas, Cultural, Morphological and Pathogenic Variability of Exserohilum turcicum causing Turcicum Leaf Blight in Maize, Control of Helminthosporium turcicum blight disease of sweet corn in South Florida, A comparative study of species and strains of Helminthosporium on certain indian cultivated crops. Crop rotation and tillage will reduce inoculum levels in surface residues. Open-. Lesions begin on the lower leaves and then spread to upper leaves. 176 Plant diseases reduce grain and dry matter yields. ;79(3) NORTHERN LEAF BLIGHT HELMINTHOSPORIUM TURCICUM ON MAIZE IN LATVIA. You are currently offline. Maintaining soil moisture during grain fill can reduce infection. The experiment on integrated management of turcicum leaf blight of maize caused 20.45 per cent in control. 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