Diseases

Area and zones of intensity of Powdery Mildew of Sunflower (Erisiphe cichoracearum D.C. f. helianthi Jacz. and Leveillula compositarum Golow f. helianthi Golow.)

Object description Download GIS-layers

Authors:

Object specialist V.I. Yakutkin,
GIS specialist M.I. Saulich.

Date of creation:

1.08.2004.

Scale:

1:20 000 000.

Accuracy of a map:

Map was created based on the published materials and maps of 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 limits of the sunflower area two zones of Powdery Mildew intensity were determined. The first zone includes the northern part of the sunflower area in Russia, Ukraine, and Moldova, where the number of affected plants reaches 20%, and severity on the average reaches 5%. The second zone includes Kazakhstan, southern steppe regions of Russia, Ukraine, and Moldova, where the number of affected plants exceeds 21%, and severity on the average exceeds 6%.

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. 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. The following sources were used for determined the map area: Golovin (1960), Gorlenko (1968), Tikhonov (1975), Kukin (1982).

Reference citations:

Golovin P.N. 1960. Powdery mildew fungi parasitizing on crops and useful plants. Moscow-Leningrad: AN SSSR. 266 p. (In Russian)
Gorlenko M.V. 1968. Diseases of sunflower. Agricultural Phytopathology. Moscow: Vysshaya shkola. 206-207 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.].
Kukin V.F. 1982. Diseases of sunflower and measures of its control. Moscow: Kolos. 80 p. (In Russian)
Tikhonov O.I. 1975. Diseases of sunflower. In: Pustovoit V.S., ed. Sunflower. Moscow: Kolos. 401-409 p. (In Russian)

Right and copyright:

All rights reserved. Copyright 2004 © V.I. Yakutkin (VIZR, description), V.I. Yakutkin and M.I. Saulich (VIZR, vector map).

Note:

Picture of sunflower affected by the Powdery Mildew belongs to A. Maric and co-authors (Maric A., Camprag D., Masirevic S. Bolesti i stetocine suncocreta i njihovo suzbijanje. Nolit. Beograd, 1987, 79 p. Table III: 4. Na listu u uslovima staklenika; 5. Na stablu i lisnim drskama; 6. U polju na listu; 7. Na biljkama (osetljiva linija).