Stoyka MASHEVA, Tsvetana LAZAROVA, Nikolay VELKOV, Georgi VELICHKOV

Botanical Products against Powdery Mildew on Cucumber in Greenhouses

Anahtar Kelimeler:

-

Botanical Products against Powdery Mildew on Cucumber in Greenhouses

During the period 2013-2014, studies for establishment of effective alternative means for control of powdery mildew (Podosphaera xanthii U. Braun & N. Snish. Comb. Nov. Syn. Sphaerotheca fuliginea) on cucumbers grown in greenhouses were conducted. Plant oils of white mustard (Brassica alba L.), hemp (Cannabis sativa L.) and wild yarrow (Ahillea millefolium L.) were tested in two concentrations 0.5% and 1.0%. The phytopesticides HF 250 ml/da (extract from dill (Anethum graveolens L.) and AlgoVital Plus 0.3% (extract of brown seaweed Ascophyllum nodosum (L.) Le Jolis) were also included in this study. The effect of botanical products is compared with a standards Bayfidan 250 EC 0.02% (a.i. triadimenol) and Domark (a.i. tetraconasol 40 g/L) 0.05%. It was established a high efficacy of the studied products compared to that of the standard. Biological activity of Biofa is less expressed. Studied products are suitable for including in organic and integrated systems for control of powdery mildew in cucumber

Keywords:

Podosphaera xanthii, Cucumis, phyto pesticides, plant oils effectivness,

PDF

___

Bélanger, R. and Labbe, C. 2002. Control of powdery mildew without chemicals: prophylactic and biological alternatives for horticultural crops. In Belanger R, WR Bushnell, AJ Dik, TLW Carver, ed, The Powdery Mildews. A Comprenhensive Treatise. Phytopathological Society Press, St. Paul, Minnesota, pp 256-267. American
Bettiol, W., Harllen, S. A. S. and Ronielli. C. R. 2008. Effectiveness of whey against zucchini squash and cucumber powdery mildew. Sci Hortic 117:82-84.
Copping, L. G. and J. J. Menn 2000: Biopesticides: a review of their action, applications and efficacy. Pest Manage. Sci. 56, 651–676.
Daughtrey, M. L., Clark, W. S. and Macksel M. T. 1993. Effect of scheduled applications of horticultural spray oil for control of powdery mildew on lilac, azalea, monarda and phlox, Fungic. Nematicide Tests 48:378.
El-Naggar, M. A., El- Deeb H. M. and Seham, R. S. 2012. Аpplied approach for controlling powdery mildew disease of cucumber under plastic houses. Pak. J. Agri., Agril. Engg., Vet. Sci., 28 (1): 54-64.
Hafez, Y. М. 2008. Effectiveness of the antifungal black seed oil against powdery mildews of cucumber (Podosphaera xanthii) and barley (Blumeria graminis f.sp. hordei). Acta biologica Szegediensis, 52(1), 17-25.
Istvan, U. 2002. Transforming natural products into natural pesticides-experience and expectations. Phytoparasitica 30, 439– 442.
Kiss, L. 2003. A review of fungal antagonists of powdery mildews and their potential as biocontrol agents, Pest Manage. Sci. 59, 475–483.
Koitabashi, M. 2005. New biocontrol method for parsley antifungal volatiles-produsing fungus Kyu-W63. J. Gen. Plant Pathology, 71:280-284. by the
Kooistra, E. 1968. Powdery mildew resistance in cucumber. Euphytica, 17, 2, 236-244.
Locke, J. C. and Stave, J. R. 1992. Efficacy of neem seed extraction products and two petroleum oils against bean rust, Fungic. Nematicide Tests 47:76.
Masheva, S. 2008. Integrated systems for Powdery mildew control in Cucumbers. Acta Horticulture, 830, 591-597.
Masheva, S., Velkov, N. and Velichkov, G. 2012. Alternative Means and Approaches to Control Cucumber Powdery mildew. Ecology and Future, Bulgarian Journal of Ecological Science, 11, 4, 20-25.
McGrath, M. T. and Shishkoff, N. 1999. Evaluation of biocompatible products for managing cucurbit powdery mildew. Crop Protection, 18, 471-478.
McGrath, M. T., Staniszewska, H. and Shishkoff, N. 1996. Fungicide sensitivity for Sphaerotheca fuliginea populations in the United States. Plant Dis, 80:697-703.
McGrath, M.T. 1996. Increased resistance to and triadimefon Sphaerotheca following fungicide usage over one season. Plant Dis 80:633-639. in populations
Moharam, M. H. A. and Obiadallaali, H. A. R. 2012. Preventative and Curative Effects of Several Plant Derived Agents Against Powdery Mildew Disease of Okra.
Not Sci Biol, 2012, 4(3):76-82
Simmonds, M. S. J., Evans, H.C. and Blaney, W. M. 1992. Pesticides for the year 2000: mycochemicals and botanicals. In: Kadi, A.S.A. and H.S. Barlow (eds.). Pest Management and the Environment in 2000. CAB International, Wallingford, UK, 127–164.
Velkov, N. 2007. Cucumber powdery mildew, resistance and tolerance. Proceedings of the First International Conference, Research People and Actual Tasks on Multidisciplinary Bulgaria, 6-8 June, 2007. Vol. 1. 56-61. Lozenec,
Yankova, V., Masheva, S., Mateeva, A., Palagacheva, N. and Loginova, E. 2009. Biological Activities of Phytopesticides of Azadirachta Harmful and Useful Species. Ecology and Future, Bulgarian Journal of Ecological Science, 8, 4, 26-29. Some
Žežlina, A. Škvar, Rusjan, D. and Trdan, S. 2010. The efficacy of different spraying programs against two fungal pathogens in organic grape production. Journal of Plant Diseases and Protection, 5, 220– 225.