Evaluation the efficiency of Falcon® fungicide to control wheat leaf blotch caused by Mycosphaerella graminicola

Subject Areas : دو فصلنامه تحقیقات بیماریهای گیاهی

Mohammadreza eslahi ¹ (استادیار، بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خوزستان، سازمان تحقیقات، آموزش و ترویج کشاورزی، اهواز، ایران.)
sh موجرلو ² (استادیار، گروه باغبانی و گیاهپزشکی، دانشکده کشاورزی، دانشگاه صنعتی شاهرود، شاهرود، ایران.)

Received: 2016-12-12 Accepted : 2017-02-03 Published : 2017-11-22

Keywords: Leaf blotch, wheat septoriosis, Strobilorins, disease management,

Abstract :

Wheat leaf septoriosis caused by Mycosphaerella graminicola is one of the most important and destructive diseases of wheat. Since the resistant cultivars are not durable, disease control is mainly based on using fungicides where the yield loss is considerable. But using one fungicide may cause resistance. In this study, the impact of falcon® fungicide on disease control of wheat septoriosis has been studied. The experiment is carried out by randomized complete block design with 4 replications at Khuzestan agricultural and natural resources research center. No fungicide treatment and Tilt® used as controls. Results of this study showed that Falcon® treatment had lower AUDPC, higher yield and thousands of kernel weight compared to control and Tilt®. Disease severity progress was similar in both Tilt® and Falcon® treatments. Based on the results of current study, Falcon® fungicide is a suitable alternative of Tilt® in periodic applications of fungicides to combat leaf septoriosis

References:

 

1. Adhikari TB, Cavaletto JR, Dubcovsky J, Gieco JO, Schlatter AR and Goodwin SB. 2004. Molecular mapping of the Stb4 gene for resistance to Septoria tritici blotch in wheat. Phytopathology 94: 1198–1206.


2. Cools HJ, Mullins JGL, Fraaije BA, Parker JE, Kelly DE, Lucas JA and Kelly SL. 2011. Impact of recently emerged sterol 14-demethylase (CYP51) variants of Mycosphaerella graminicola on azole fungicide sensitivity. Applied and Environmental Microbiology 77: 3830–3837.


3. Cuthbert RD. 2011. Molecular mapping of Septoria tritici blotch resistance in hexaploid wheat (Triticum aestivum L.). [PhD]. [Winnipeg, Canada]: The University of Manitoba.


4. Dadrezaei ST, Minasian V, Torabi M and Lotf Ali Ayeneh Gh A. 2003. Effect of Septoria tritici infections at different growth stages on yield and yield components of three wheat cultivars. Seed and Plant Improvement Journal 19: 101–116.


5. Dalvand M and Roohparvar R. 2013. Evaluation of Iranian wheat cultivars reaction to Septoria tritici blotch and virulence survey of Mycosphaerella graminicola in Khuzestan province. International Research Journal of Applied and Basic Science 5: 1097–1100.


6. Dutzmann S and Suty-Heinze A. 2004. Prothioconazole: a broadspectrum demethylation-inhibitor (DMI) for arable crops. Pflanzenschutz-Nachrichten Bayer 57: 249–264.


7. Eyal Z, Scharen AL, Prescott JM and Van Ginkel M. 1987. The Septoria Diseases of Wheat: Concepts and Methods of Disease Management. Mexico: CIMMYT, 54 pp.


8. Gaurilčikienė I, Butkutė B and Mankevičienė A. 2010. A multi aspect comparative investigation on the use of strobilurin and triazole-based fungicides for winter wheat disease control. pp. 69–94. In O Carisse (ed). Fungicides. [cited 2013 Oct 20]. Available from: http://www.intechopen.com/books/fungicides


9. Goodwin SB. 2007. Back to basics and beyond: increasing the level of resistance to Septoria tritici blotch in wheat. Australasian Plant Pathology 36: 532–538.


10. Köller W and Scheinpflug H. 1987. Fungal resistance to sterolbio synthesis inhibitors: a new challenge. Plant Disease 71: 1066–1074.


11. Krupinsky J. 1999. Influence of cultural practices on Septoria/Stagonospora diseases. pp. 105–110, In M van Ginkel, A McNab and Krupinsky J (eds). Septoria and Stagonospora diseases of cereals: A compilation of global research. Mexico: CIMMYT.


12. Leroux P, Albertini C, Gautier A, Gredt M and Walker AS. 2007. Mutations in the CYP51 gene correlated with changes in sensitivity to sterol 14α demethylation inhibitors in field isolates of Mycosphaerella graminicola. Pest Management Science 63: 688–698.


13. Palmer C and Skinner W. 2002. Mycosphaerella graminicola: latent infection, crop devastation and genomics. Molecular Plant Pathology 3: 63–70.


14. Pedersen E. 1992. The effect of crop rotation on development of the Septoria disease complex on spring wheat in Saskatchewan. Canadian Journal of Plant Pathology 14: 152–158.


15. Petrak F and Esfandiari E. 1941. Beiträge zur Kenntnis der Iranischen Pilzflora. Annals of Mycology 39: 204–228.


16. Quaedvlieg W, Kema G, Groenewald J, Verkley G, Seifbarghi S, Razavi M, Gohari AM, Mehrabi R and Crous P. 2011. Zymoseptoria gen. nov.: a new genus to accommodate Septoria-like species occurring on graminicolous hosts. Persoonia:Molecular Phylogeny and Evolution of Fungi 26: 57.


17. Sanderson F and Gaunt R. 1980. Commercial control of speckled leaf blotch (Mycosphaerella graminicola, imperfect state Septoria tritici) on wheat using fungicides. Paper presented at: 3rd International Wheat Conference; May 22 - June 3; Madrid, Spain.


18. Sarri EE and Prescott JM. 1975. A scale for appraising the foliar intensity of wheat disease. Plant Disease Reporter 59:377–380.


19. Shipton W, Boyd WRJ, Rosielle A and Shearer B. 1971. The common Septoria diseases of wheat. The Botanical Review 37: 231–262.


20. Somai-Jemmali L, Selim S, Siah A and Hamada W. 2014. Fungicide sensitivity of Mycosphaerella graminicola Tunisian isolates: the importance of drug transporter genes in the process of fungicide tolerance. Phytopathologia Mediterranea 53: 83−93.


21. Stammler G, Carstensen M, Koch A, Semar M, Strobel D and Schlehuber S. 2008. Frequency of different CYP51-haplotypes of Mycosphaerella graminicola and their impact on epoxiconazole-sensitivity and field efficacy. Crop Protection 27: 1448–1456.


22. Tompkins D, Fowler D and Wright A. 1993. Influence of agronomic practices on canopy microclimate and Septoria development in no-till winter wheat produced in the Parkland region of Saskatchewan. Canadian Journal of Plant Science 73: 331–344.


23. Zhan J, Stefanato FL and McDonald BA. 2006. Selection ofincreased cyproconazole tolerance in Mycosphaerella graminicola through local adaptation and response to hostresistance. MolecularPlant Pathology 7: 259–268.