Area and disease severity zones of the Gray Stem Spot of Sunflower (Diaporthe helianthi Munt.-Cvet. et al.)

Object description Download GIS-layers


Object specialist V.I. Yakutkin,
GIS-specialist M.I. Saulich.

Date of creation:



1:20 000 000

Accuracy of map:

Map was created based on information taken from the published literature and maps of scale 1:40 000 000.


"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 and zones of disease severity are shown by polygons.

Accuracy of classifier:

Within the limits of disease distribution three zones of disease severity are demonstrated. The first zone is low disease severity, where yield losses do not exceed more than 10%. The second zone is moderate disease severity, where the yield losses reach 30%. The third zone is a high disease severity, where the yield losses are more than 31%.

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 base map was drawn according to the following sources: Bogdanova (1986), Skripka et al. (1988), Yakutkin (1991, 1993, 1998, 2001), Lesovoy et al. (1996). Adjustments to the distribution borders were made according to Koroljeva et al. (2003). Adjustments to the diseased severity zones were made according to Yakutkin (2001).

Reference citations:

Bogdanova V.N. 1986. In time to find out phomopsis. Sel.skoe khozyaistvo Moldavii, 12: 24-25. (In Russian)
Carriere J.B., Petrov M. 1990. Diaporthe (Phomopsis) sp., a new pathogen of cocklebur (Xanthium italicum Moretti) and sunflower (Helianthus annuus L.). Helia, 13: 93-106.
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.].
Lesovoy M.P., Parfenyuk A.I. 1996. Methodical peculiarities in breeding of sunflower hybrids with group resistance to agents of the white rot and the phomopsis. In: Eucarpia. Proceeding of the symposium on breeding of oil and protein crops; 1996 Aug. 5-8; Ukraine: Zaporozhye. 102-107 p.
Maric A., Camprag D., Masirevic S. 1987. Sunflower diseases and pests and their control. Belgrade: Nolit. 379 p. (In Serbian)
Muntanola-Cvetkovic M., Mihaljecevic M., Petrov M. 1981. Identity of the causative agent of a serious Phomopsis (Diaporthe) disease in sunflower plants. Belgrade: Institute for Biological Research "Sinisa Stankovic.. Nova Hedwigia 34: 417.435.
Skripka O.V., Primakovskaya M.A., Shinkarev V.I. and Matvienko A.N. 1988. The methodical recommendations on detection of the phomopsis (Gray Stem Spot of Sunflower). Moscow: VNIIF. 12 pp. (In Russian)
Wehmeyer L.E. 1933. The genus Diaporthe Nitschke and its segregates. Ann Arbor: University of Michigan Press. 22-33 p.
Yakutkin V.I. 1991. Identification of the cause of Gray Stem Spot of Sunflower and methods of its account. The methodical recommendations. Leningrad: VIZR. 23 pp. (In Russian)
Yakutkin V.I. 1993. Occurrence of Gray Stem Spot of Sunflower in Russia. Mikologiya i fitopatologiya, 27(5): 68-73. (In Russian)
Yakutkin V.I. 1998 a. Methods of identification and account of phomopsis of sunflower. Collection of methodical recomendationes on plant protection. St. Petersburg: VIZR. 191-207 p. (In Russian)
Yakutkin V.I. 1998 b. Gray Stem Spot is a new disease of sunflower in Russia. 7th International Congress of Plant Pathology; Aug. 9-16; 1998; Edinburg, Scotland. V. 6. 6 p.
Yakutkin V.I. 2001. Diseases of sunflower in Russia and their control. Zashchita i karantin rastenii, N. 10: 26-29. (In Russian)
Yang S.M., Berry R.W., Luttrel E.J., Vonkaysone T. 1984. A new sunflower disease caused by Diaporthe helianthi in Texas. Plant Dis., 68: 254-255.

Right and copyright:

All rights reserved. Copyright 2004 © V.I. Yakutkin & M.I. Saulich (VIZR; vector map, description); V.I. Yakutkin (VIZR, picture).

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