Diseases
Area of Blumeria graminis (DC.) Speer f. sp. secalis Marchal. (Erysiphe graminis DC) - Rye Powdery Mildew
Object description Download GIS-layers
Authors:
Specialist-biologist - A.P. Dmitriev, GIS-specialist - M.I. SaulichDate of creation:
9.07.2004.Scale:
1:20 000 000.Accuracy of map:
Map was created based on materials of maps of natural scale 1:33 000.000.Projection:
"Alber's Equal Area Conic for the USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0.Basic contents:
Vector map. Area of species distribution and zones of disease severity are shown by polygons.Accuracy of classifier:
Within the area of this disease a zone of harmfulness was determined to be where the disease development reaches 20-50%, and where epidemics occur at least one out of every ten years.Method of map production:
Scientists were given maps with boundaries of Oblasts and arable lands. After reviewing historic literature, species distribution was hand drawn on maps. The following sources demonstrate that the pathogen of Powdery Mildew is distributed in all regions of rye cultivation in the territory of the former USSR: Ishkova et al. (2002), Levitin & Tuterev (2003). The borders of disease severity were determined according to the following sources: Chumakov & Minkevich (1971), Novozhilov & Zakharenko (2000), Ishkova (2003) and Levitin & Tyuterev (2003).If data were on the Oblast-level, distribution is on the Oblast level. In some cases, Oblast.s are further refined by boundaries of the Arable Land Map (Koroljeva et al., 2003). Hand drawn maps were scanned, georeferenced and vectorized.
Reference citations:
Chumakov A.E., Minkevich I.I. 1971. Wheat powdery mildew. Methods of territorial long-term prognosis of plant diseases. Leningrad: VIZR. 54-55 p. (In Russian)Ishkova T.I., Berestetskaya L.I., Gasich E.L., Levitin M.M., Vlasov D.Yu. 2002. Diagnostics of the main fungal diseases of cereal crops. St. Petersburg: VIZR. 76 p. (In Russian)
Koroljeva IE, Vilchevskaya EV, Ruhovich DI. 2003. Digital Arable Land Map. Laboratory of Soil Information of the Dokuchaev Soil Institute, Moscow, Russia [Based on: Yanvareva LF. (ed.), Martynjuk KN., Kisileva NM. 1989. Map of Land Use, Faculty of Geography, Moscow State University, Moscow, Russia.].
Levitin M.M., Tyuterev S.L. 2003. Fungal diseases of cereals crops. Zashchita rastenii i karantin, 11: 75. (In Russian)
Novozhilov K.V., Zakharenko V.A., eds. 2000. Levels and tendencies of variability of species composition and intra-population structure, areas of complexes of harmful and useful organisms and forecast of dangerous phytosanitary situations in zones of the country. St. Petersburg: VIZR. 100 p. (In Russian)