Diseases

Area of Eye-Spot (Strawbreaker Foot Rot) of Rye Pseudocercosporella herpotrichoides (Fron) Deighton

Object description Download GIS-layers

Authors:

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

Date of creation:

9.07.2004.

Scale:

1:20 000 000.

Accuracy of map:

It is created 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 consists of two thematic layers, where zones of distribution and harm are shown by polygons.

Accuracy of classifier:

In the disease area the zone of severity is allocated, where the number of infected plants rise to 10% and more.

Procedure of map drawing:

The zone of distribution is identified by results of the analysis of the published data on fungus distribution (Dzhumbaev, 1970; Ishkova, 2002; Levitin, Tuterev, 2003). In this zone the disease development is basically occasional and weak; yield losses have no economical significance. The disease severity zone borders are allocated after Buga & Ushkevich (1982), T. Ishkova et al., (2002) and M. Levitin & S. Tuterev.

Sources of the data:

Buga S.F., Ushkevich L.A. 1982. Ethiology and harmfulness of winter rye strawbreaker foot rot in BSSR. Plant protection. Minsk: Urozhay. issue 7. p. 74-78 (in Russian).
Dzhumbaev P. 1970. Cercosporella herpotrichoides - dangerous disease of cereal crops. Moscow: Kolos. p. 106-108 (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).
Levitin M.M. & Tuterev S.L. 2003. Fungal diseases of cereals crops. Zashchita rastenii i karantin 11: p. 75 (in Russian).

Right and copyright:

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