Area of distribution and damage of Parthenolecanium corni Bouche.

Object description Download GIS-layers


Object specialist G.E. David'yan
GIS-specialist M.I. Saulich

Date of creation:




Accuracy of map:

Map was created using maps of scale 1:33,000,000 and information from published literature.


"Alber's Equal Conica for the USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0.

Basic content:

Vector map consisting of 2 thematic layers. Area of distribution and zone of damage are shown by polygons.

Accuracy of classifier:

Within the area of distribution, only a zone of low damage was established according to the extent of damage to fruit crops. Threshold of harmfulness of P. orni on fruiters during the stage before buds blossom is 5-10 nymphs per 10 cm of twigs. In the zone of low damage, maximum harmfulness of P. corni reaches no more than 2 points on the 5-point harmfulness scale (Kopaneva et al., 1984).

Mapping procedure:

Data from state publications was used to allocation the distribution area and zone of pest damage. Saakyan-Baranova's (1971) map was used as a prototype for the map of distribution and damage of P. corni. Additions were made using Borkhsenius (1949, 1957), Vasil'ev (1955, 1973), Konopleva (1964), and Kryzhanovskii & Dantsig (1972). In the former USSR, the distribution area includes the European region (from the middle taiga sub-zone in the Leningrad Region in the North southward to southern state boundaries), Southern Ural, Northwestern and Southern Kazakhstan, Central Asia (except mountain territories), the foothills of the Altai Mountains, Southern Krasnoyarsk Territory, and the Primorskii Territory and South of Sakhalin). Borders of the zone of low damage were adapted to conform with economically significant areas of fruit cultivation, including Moldavia, Ukraine, Crimea, Northern Caucasus, Azerbaijan, the Lower Volga Basin region, Southern Ural, the Almaty Region in Kazakhstan, and the Tashkent Region in Uzbekistan.

Sources of data:

Borkhsenius, N.S. 1949. Suborder Coccoidea. In: Pavlovskii E.N. & Shtakelberg A.A., eds. Pest Animals of Middle Asia (handbook). Moscow & Leningrad: AN SSSR. P. 220-222 (in Russian).
Borkhsenius, N.S. 1957. Suborder Coccoidea, Family Coccidae. Fauna of the USSR. Insecta - Homoptera. Moscow & Leningrad: AN SSSR. V. 9. 494 p. (in Russian).
Danzig, E.M. 1984. Suborder of Coccinea. In: Keys to harmful and useful insects and mites on fruit and berry crops in the USSR. In: Kopaneva, L.M., ed. Leningrad: Kolos. 288 p. (in Russian).
Konopleva, V. 1964. European fruit scale. In: Agriculture of Siberia and Far East (Omsk) 6: 82 (in Russian).
Kryzhanovskii, O.L. & Dantsig, E.M., eds. 1972. Insects and mites - pests of agricultural plants. V. 1. Insects with hemimetabolous development. Leningrad: Nauka, 323 p. (in Russian).
Saakyan-Baranova, A.A., Sugonyaev, E.S. & Sheldeshova G.G. 1971. Brown fruit scale (Parthenolecanium corni Bouche) and its parasites (Chalcidoidea). In: Essay of the complex investigation of host-parasite relations. Leningrad: Nauka. 167 p. (in Russian).
Vasil'ev V.P., 1955. Pests of orchards. Kiev: AN Ukr.SSR. 265 p. (in Russian).
Vasil'ev, V.P., ed. 1973. Pests of agricultural crops and forest plantations. V. 1. Kiev: Urozhai. 496 p. (in Russian).

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Copyright 2004 © G.E. David'yan & M.I. Saulich (VIZR, vector map, description), Jerry A. Payne (USDA ARS, USA, photo)

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