International Blue Mold Reports for 2004

from the

CORESTA Blue Mould Warning Service

CORESTA, headquartered in Paris, France, has a network of expert observers servicing the regions of Europe, North Africa, and the Middle East. The detailed reports issued by CORESTA are given below. We wish to thank Francois Jacob, the CORESTA staff, and the international observers for their cooperation in this endeavor. Please visit their web site at www.coresta.org.

Site of Outbreak

Observation Date

Received by CORESTA

REPORT

Tunisia	March 11, 2004	March 23, 2004	Site: Keilibia Region (northeast). Light, localised outbreak in seedbeds on seedlings at transplanting stage. Dark air-cured tobacco Variety 8-4/7-2 affected. Site: Gabes Region (southeast). Light, localised outbreak on field tobacco (10 leaf stage). Snuff tobacco variety Souffi Gaves affected. Both sites: Climatic conditions favourable to blue mould. Treatment with Ridomil MZ 58. Information received from Hamadi YAHIAOUL, Regie Nationale des Tabacs et Allumettes - Tunis (Tunisia). March 25, 2004. Ref. 058
Iran	April 18 and 21, 2004	April 29, 2004	Sites: Gorgan Ghorogh Golestan Province (April 18) and Neka Chalemardy Mazandaran Province (April 21). Outbreak in seedbeds on Virginia tobacco seedlings at transplanting stage. Symptoms - chlorotic soprt with medium sporulation. Treatment with Metalaxyl-Mancozeb. Information received from R.A. MAHTABI, Tirtash Tobacco Research Institue - Behshahr (Iran). April 29, 2004. Ref. 093
Tunisia	April 20, 2004	May 13, 2004	Site: Sejenane Region (north). Medium to serious outbreak on young plants (4 leaf stage). Local dark air-cured tobacco variety 8-4/7-2 affected. Site: Gabes Region (southeast). Serious outbreak on field tobacco (10-12 leaf stage). Local snuff tabacco variety Souffi Gabes affected.. Both sites: Climatic conditions very favourable to blue mould. Treatment with Ridomil MZ 58 (metalaxyl). Information received from Mohamed Ben N'Oh, Regie Nationale des Tabacs et Allumettes - Tunis (Tunisia). May 17, 2004. Ref. 104
Iran	May 6 and 8, 2004	May 20, 2004	Site: Tirtash. Outbreak of blue mould in seedbeds on seedlings at transplanting stage. Variety Bergerac C - systemic symptoms with deformation of veins. Variety Burley 21 - chlorotic spots with medium sporulation. Treatment with Metalaxyl mancozeb. Information received from R.A. MAHTABI, Tirtash Tobacco Research Institue - Behshahr (Iran). May 27, 2004. Ref. 117
Bulgaria	June 18, 2004	June 18, 2004	Site: Asenovgrad (near Plovdiv). First outbreak of blue mould on tobacco in the field (4-6 leaf stage). 5 ha of Virginia 454 variety affected - chlorotic spots with high sporulation. Climatic conditions very favourable to blue mould. Treatment with Metalaxyl mancozeb. Information received from Dr. H. BOZUKOV, Tobacco and Tobacco Products Institute, Plovdiv (Bulgaria). June 18, 2004. Ref. 136
Germany	July 7, 2004	July 8, 2004	Site: Forchheim Institute. Very light outbreak of blue mould on tobacco in the field. A few flue-cured tobacco breeding lines and one burley tobacco breeding line showed blue mould symptoms on one leaf each (a few sports sporulated). The affected leaves were removed and the tobacco was treated with Forum (15% Dimethomorph). Information received from Dr. N. BILLENKAMP, Landesanstald fur Pflanzenbau Forchheim, Rheinstetten (Germany). July 8, 2004. Ref. 162

These reports are courtesy of CORESTA (Cooperation Centre for Scientific Research Relative to Tobacco).

Page last updated July 20, 2004.