Pests

The area and zones of harm of the Pea leaf weevil (Sitona lineatus ).

Object description Download GIS-layers

Authors:

Specialist-biologist - G.E. David'yan, GIS-specialist - M.I. Saulich.

Date of creation:

15.08.2003.

Scale:

1:20.000.000.

Accuracy of map:

Map was created based on materials of maps of natural scale 1:25 000 000 and information received from other literature.

Projection:

"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 is shown by polygons. Zones of pest damage are shown by polygons.

Accuracy of classifier:

Insect area is divided into the following zones: 1) permanent mass reproduction and systematic large damage (area of strong harm); 2) sporadic reproduction and damage (area of moderate harm); 3) insignificant reproduction and damage (area of weak harm).

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 map by Petrukha (1969) was used as the base map and the area was adjusted according to Shamuratov & Deordiev (1990) at the southern border and in the Far East by Egorov (1979). The borders of the zones of harmfulness were determined according to Petrukha (1969)

Reference citations:

Egorov A.B. 1978. Weevil-beetles (Coleoptera, Curculionidae) of Primorye Territory. Candidate for PhD thesis in biological sciences. Avtoref. 24 pp.
Freude H., Harde K.W., Lohse G.A. 1981. Die Kafer Mitteleuropas (Keys to families and genera for adult males and females). Krefeld: Goecke & Evers. 310 p. (In German)
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.].
Petrukha O.I. 1969. The pea weevils of the Genus Sitona Germ. from the fauna of USSR, damage to bean crops. Leningrad: Nauka. 255 pp.
Shamuratov G.Sh., Deordiev I.T. 1990. Comparative sensitivity of the main pests of lucerne and their entomophages to pesticides. In: Shamuratov G.Sh., ed. Sbornik nauchn. trudov. Nukus: Izd. Karakalpakstan. 21-24 pp.

Right and copyright:

All rights reserved.
Copyright 2003 © G.E. David'yan & M.I. Saulich (vector map, description) and G.E. David'yan (picture).