Pests

Area of distribution and damage of Bruchophagus roddi Guss.

Object description Download GIS-layers

Authors:

Object specialists - A.N. Frolov & G.E. David'yan
GIS-specialist - M.I. Saulich

Date of creation:

11.09.2005.

Scale:

1:20,000,000.

Accuracy of map:

Map was created using a map of scale 1:33,000,000 and using information taken from literature.

Projection:

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

Basic content:

Vector map that consists of three thematic layers. Area of distribution and zones of damage are shown by polygons.

Accuracy of the classifier:

Within the area of distribution, zones of low and moderate damage were established according to the extent of damage to alfalfa. Threshold of harmfulness on alfalfa seed crops is 10-20 adults per 10 net sweeps in the second half of the flowering period (Tanskii, 1985). In the zone of moderate damage, harmfulness of Blastophagus roddi is about 3 points under the 5-point harmfulness scale (Zerova, 1983). In the zone of low damage, the territory of alfalfa growing was determined to be where seed alfalfa crops are insignificant.

Mapping procedure:

Data from publications were used for allocation of the area and zones of pest damage. The map of the area is based on the publications of Nilol'skaya (1952) and Zerova (1974, 1978, 1983, 1994, 1995). In the former USSR, the area includes most of the European part northward to Karelia, the Caucasus, the southern part of western and eastern Siberia and the Far East, Turkmenistan, Tadjikistan, Uzbekistan, Kyrgyzstan, and Kazakhstan. The zone of moderate damage is comprised of the area of alfalfa growing within the area of Bruchophagus roddi north to the forest-steppe zone within Moldova, Ukraine, southern European Russia, West Siberia, the Caucasus, Middle Asia, and Kazakhstan. The zone of low damage is located north from the steppe zone and eastward from Khakassia Region. The borders of the damage zones were determined according to Shchegolev (1955), Zerova (1974, 1983), Lakhmanov & Zublkov (1981), and Mel'nichuk (1982). The pest damage zones were corrected according to Koroljeva.s vector layer (Koroleva et al., 2003) within the regions of the largest alfalfa distribution.

Sources of data:

Lakhmanov, V., Zubkov, V. 1981. Biology of lucerne-seed chalcid, its harmfulnesss and control in Tzelinograd Region. Proceeding of Siberian department of VASKHNIL (Novosibirsk) 6: 33-37 (in Russian).
Mel'nichuk, A.I. 1982. Control measures against alfalfa seed chalcid. Bulletin of agricultural science of Kazakhstan (Alma-Ata) 4: 41-42 (in Russian).
Nikol'skaya, M.N. 1952. On the fauna of Chalcidoidea of the USSR. Moscow-Leningrad: AN USSR, 575 p. (in Russian).
Shchegolev, V.N., ed. 1955. Agricultural Entomology. Leningrad & Moscow: Sel.khozgiz, 616 p. (in Russian).
Tanskii, V.I. 1985. Application of economic thresholds for the main pests of the primary agricultural crops (methodical instructions). Leningrad: VIZR, 27 p. (in Russian).
Vasil'ev, V.P., ed. 1974. Pests of agricultural crops and forest plantations. V. 4. Kiev: Urozhai, 606 p. (in Russian).
Zerova, M.D. 1978. Family Eurytomidae. In: Medvedev, G.S., ed. Keys to the insects of the European part of the USSR. V. 3(2). Leningrad: Nauka, p. 328-350 (in Russian).
Zerova, M.D. 1983. Family Eurytomidae. In :Kopaneva, L.M., ed. Keys to harmful and useful insects and mites on the annual and perennial grasses and leguminous plants in the USSR. Leningrad: Kolos, p. 181-187 (in Russian).
Zerova, M.D. 1995. Family Eurytomidae. In: Ler, P.A., ed. Keys to the insects of the Russian Far East. V. 4(2). Vladivostok: Dal.nauka, p. 257-286. (in Russian).
Zerova, M.D., Seregina, L.Ya. 1994. Seed-eating Chalcidoidea of Palaearctics. Kiev: Naukova Dumka, 236 p. (in Russian).

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