Area and disease severity of Flag Smut of Rye Urocystis occulta (Wallr.) Rab.

Object description Download GIS-layers


Specialist-biologist A.P. Dmitriev, GIS-specialist M.I.Saulich.

Date of creation:



1:20 000 000.

Accuracy of map:

It is created on materials of maps of natural scale 1: 33 000 000.


"Alber.s Equal Area Conic", 9, 1001, 7, 100, 0, 44, 68, 0, 0.

Basic contents:

Vector map. It consists of 2 layers characterizing the disease distribution on rye and disease severity zone.

Accuracy of the classifier:

Within the species area the zone of the disease severity is marked. In this zone the number of diseased plants is more than 0.2%, and it may increase to 7-8% at favorable weather conditions.

Procedure of map drawing:

Distribution area of U. occulta is allocated by results of the analysis of the materials published in an open sources and on the disease distribution data (Ishkova et al., 2002; Levitin & Tyuterev, 2003). Zone of severity is specified according to Kalashnikov (1973), Karatygin (1986) and Anon. (1999). The blank map with image of distribution and the disease severity zones has been scanned. Registration and vectoring of its raster copy have been fulfilled by standard facilities of GIS-technologies.

Sources of the data:

Anon. 1999. Smuts of rye, oats and barley. Zashchita rastenii i karantin. 7: p. 31 (in Russian).
Ishkova, T.I., Berestetskaya, L.I., Gasich, E.L., Levitin, M.M. & Vlasov, D.Yu. 2002. Diagnostics of the main fungus diseases of cereal crops. St. Petersburg: VIZR. 76 p. (in Russian).
Kalashnikov, K.Ya. 1973. Severity of rye flag smut. Zashchita rastenii. 12: p. 50 (in Russian).
Karatygin, I.V. 1986. Smuts of cereal crops. Leningrad: Nauka. 112 p. (in Russian).
Levitin, M.M. & Tyuterev, S.L. 2003. Fungal diseases of cereals crops. Zashchita rastenii i karantin. 11: 77 (in Russian).

Right and copyright:

All rights reserved. Copyright 2004 A.P. Dmitriev, M.I. Saulich (VIZR, map and description) and A.P. Dmitriev (picture).

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