The distribution and severity zones of Downy Mildew of Peas (Peronospora pisi Sydow.)

Object description Download GIS-layers


Specialist-biologist Kungurtseva O.V.,
GIS-specialist Saulich M.I.

Date of creation.



1:20 000 000.

Accuracy of map.

Map was created based on information taken from map of scale 1: 33 000 000.


"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:

Three zones of severity were allocated within the limits of the area of disease distribution. In the zone of high severity the annual development of peronosporosis results in yield losses to 50-75%; in the zone of moderate severity the development does not occur every year, and yield losses reach 40%; single records of the disease are demonstrated within the zone of low severity of the disease. The following sources were used to determine these zones: Krivchenko (1975), Makasheva (1973).

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 analysis of the following materials published in the open press demonstrate that the greatest harm the disease causes is in the Non-Chernozem zone, in western areas of Central Chernozem zone, in Baltic States, Ukraine, Byelorussia: Krivchenko (1975), Golubev et al. (1979), Kirik et al. (1976), Kotova et al. (1965), Kraiko (1989), Makasheva (1973), Starostin et al. (1988), Cherepanova (1987). Areas of moderate severity coincide with the northern areas of the Northern Caucasus (Cherepanova, 1987). In other territories of the disease area it causes insignificant harm.

Reference citations:

Cherepanova N.P. 1987. Species of Peronospora as parasites of higher plants. Leningrad: Leningrad University. 124 p. (In Russian)
Dorozhkin N.A., Chekalinskaya N.I., Nitievskaya V.I. 1978. Diseases of legumes in Belarus. Minsk: Nauka i tekhnika. 192 p. (In Russian)
Evdokimova E.G., Matyushin M. S., Fadeeva A.N., Shalamova A.A. 1990. Pea field of Tatarstan. Kazan: Tatar Publishing House. 120 p. (In Russian)
Golubev A.A., Yanpkov I.I. 1979. Epiphytoties of Downy Mildew of Peas. Zashchita rastenii, 7: 41-42 (In Russian)
Kirik N.N., Koshevskii I.I. 1976. Downy Mildew of Peas. Zashchita rastenii, 4: 22. (In Russian)
Korobeinikova A.V., Fominykh A.S. 1964. Pests and diseases of legumes and their control. Sverdlovsk: Sredne-Uralskoe Publishing House. 48 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.].
Kotova V.V., Khaleeva Z.N., Shekunova E.G. 1965. Fungal diseases of leguminous cultures. In: Polyakov I.Ya., Chumakov A.E., eds. Proc. VIZR. Leningrad: Kolos. V. 25: 159-164. (In Russian)
Kraiko L.F. 1989. Affection of peas by diseases in conditions of Byelorussia. Agriculture and plant growing in Byelorussia. V. 33. Minsk: Urodzhai. 89-92 p. (In Russian)
Krivchenko V.I., ed. 1975. Diseases of Fodder leguminous cultures in Non-Chernozem zone of Russia. Methodical instructions. Leningrad: VIR. 154 p. (In Russian)
Makasheva R.Kh. 1973. The pea. Leningrad: Kolos. 312 p. (In Russian)
Starostin S.P., Kotova V.V., Tsvetkova N.A., Borisenko L.A. 1988. Pests, diseases and weeds on peas and their control. Zashchita rastenii, 3: 14-15. (In Russian)

Right and copyright:

All rights reserved. Copyright ©2005 O.V. Kungurtseva & M.I. Saulich (vector map, description), O.V. Kungurtseva (VIZR, photo).

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