Pests
Area of distribution and damage of Melanogryllus desertus Pall.
Object description Download GIS-layers
Authors:
Object specialists - Yu.M. Malysh & A.N.Frolov,GIS-specialist - M.I.Saulich.
Date of creation:
20.07.2007.Scale:
1:20 000 000.Accuracy of the map:
It is based on materials of the map with scale 1:33 000 000, using the 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, which consists of three thematic layers. Area of distribution and zones of damage are shown by polygons.Accuracy of the classifier:
Threshold of harmfulness of the Steppe Cricket is 1-2 specimens per square meter in the sprout phase of sunflower (Tanskii, 1988) and other damaged crops (Dolzhenko, 2004). Based upon expert estimates of the past year's materials, zones of low and high damage are allocated within the pest area with densities of 1-2 and over 2 larvae per square meter, respectively.Method for map production:
To distinguish the species general distribution and damage zones, the analysis was done based on the following publications: Shembel' (1923), Rodionov (1926), Tulashvili (1950), Tret'yakova (1950), Minoranskii (1966), Ergashev (1977). On the territory of the former USSR, the area of distribution covers the south of European part (steppe zone of Ukraine, Crimea), the Caucasus, Kazakhstan, Middle Asia, and Western Siberia. Northern boundary of the area coincides with the northern border of forest-steppe zone; however, in Ukraine it passes slightly northerly compared to the northern border of steppe zone. Zone of high damage on the former USSR territory covers the south of Kazakhstan, Middle Asia (Ergashev, 1977; Tret'yakova, 1950), Azerbaijan (Rodionov, 1926), Eastern Georgia (Tulashvili, 1950), Dagestan, Astrakhan Region, Stavropol Territory, the south of Krasnodar Territory and Rostov Region (Minoranskii, 1966). Zone of low damage includes part of the plow lands from the south of Dagestan to northern border of steppe zone, excluding the zone of high damage. A correction of the pest damage zones is performed according to the vector map of the arable land distribution (Koroleva et al., 2003).Reference citations:
Ergashev N.E. 1977. Crickets (Grylloidea) of Karshinskaya steppe. Zoologicheskii zhurnal 56(3): 480-481 (in Russian).Dolzhenko V.I., ed. 2004. Methodical instructions on registration tests of insecticides, acaricides, molluscicides, and rodenticides in agriculture. St.Petersburg: VIZR, 363 p. (in Russian).
Koroleva I.E., Vilchevskaya E.V. & Rukhovich D.I. Vector map of the arable land distribution. 2003. www.agroatlas.ru.
Minoranskii V.A. 1966. Observations over Steppe Cricket (Gryllus desertus Pall.) in Rostov Region. Zoologicheskii zhurnal 45(3): 383-389 (in Russian).
Rodionov Z.S. 1926. Crickets as cotton pests. In: Plant protection from pests. Bull. of All-Russian Entomology-Phytopathology Congress. V. 3(2-3): 158-164 (in Russian).
Rodionov Z.S. 1926. Pests of cotton in Azerbaijan and Nakhichevan Republics in 1925. In: Plant protection from pests. Bull. of All-Russian Entomology-Phytopathology Congress. V. 3(2-3): 170-171 (in Russian).
Shembel' S. 1923. On the control of the cricket pest. Astrakhan. Leaflet 31 (in Russian).
Tanskii V.I. 1985. Application of economical harmfulness thresholds of the most important pests of the major agricultural crops. Methodical guidelines. Leningrad: VIZR. 28 p. (in Russian).
Tret'yakova O.I. 1950. On damage to melons and gourds by Steppe Cricket. In: Pavlovskii E.N., ed. Reports of Tadjik Branch of AS USSR. Stalinabad: Izdatel'stvo Tadzhikskogo filiala AN SSSR, V. 28: 35-37 (in Russian).
Tulashvili N.D. 1950. Materials on biology of Steppe Cricket (Gryllulus desertus Pall.) and methods for its control under conditions of Eastern Georgia. In: Proceedings of Plant Protection Institute. V. 7. Tbilisi: Izdatel'stvo Akademii nauk Gruzinskoi SSR. P. 13-15 (in Russian).