Diseases

Distribution and severity zones of the Powdery Mildew of Pea (Erysiphe communis Grev. f. pisi Dietrich).

Object description Download GIS-layers

Authors:

Biologist - Kungurtseva O.V.
GIS-specialist - Saulich M.I.

Date of creation.

22.01.2004.

Scale.

1:20,000,000.

Accuracy of map.

Created based on information taken from open-published literature 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 composed of 2 thematic layers. Zones of distribution and severity are shown by polygons.

Accuracy of classifier:

Within the disease area zones of low and high severity were allocated. In the zone of low severity the disease appears annually at the end of the vegetation period. In the zone of high severity the disease appears in dry hot years during the entire period of vegetation.

Method of map production.:

Two zones of severity of the Powdery Mildew of Pea were allocated based on the analysis of published literature data. Period of appearance of the disease on crops serves as a criterion of the area division. In the zone of low severity the disease area based on development with cool damp weather is presented. Appearance of the disease in this zone coincides with the end of vegetation of plants (Brundza, 1961; Baibakova, 1971; Makasheva, 1973; Mikhailenko, 1971). In areas of high severity the disease develops with high temperatures and low humidity. Development of the Powdery Mildew of Pea is observed during the entire vegetation period (Dorozhkin et al., 1978; Evdokimova et al., 1992; Korobeinikova et al., 1964).

Reference citations:

Baibakova O.V. 1971. Powdery mildew fungi parasitizing on legumes in Leningrad Region. PhD Thesis. Leningrad-Pushkin: VIZR. 21 p. (in Russian).
Brundza K. 1961. Fungi parasitizing on cultivated plants in Lithuania and some questions of their. Vil.nyus: Academy of sciences of Lithuanian SSR. Institute of botany. 302 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. 1992. Pea field of Tatarstan. Kazan.: Tatar Publishing House. 120 p. (in Russian).
Kirik N.N., Kitsko V.E. 1975. Powdery Mildew of Pea. Zashchita rastenii 11: 48-49 (in Russian).
Korobeinikova A.V., Fominykh A.S. 1964. Pests and diseases of legumes and their control. Sverdlovsk: Sredne-Ural.skoe Publishing House. ???? (in Russian).
Makasheva R.Kh. 1973. The pea. Leningrad: Kolos. 312 p. (in Russian).
Mikhailenko M.A. 1971. Peas in Western Siberia. Omsk. Zapadno-Sibirskoe Publishing House. 283 p. (in Russian).
Puzanova L.A. 1991. Powdery mildew fungi on plants in Krasnodarskii Territory. Mikologiya i fitopatologiya 25(9): 122-127 (in Russian).

Right and copyright:

All rights reserved. Copyright 2004 © O.V.Kungurtseva & M.I.Saulich (vector map, description).
O.V.Kungurtseva (photo).