ORIGINAL ARTICLE
Effect of some essential oils for limiting early blight (Alternaria solani) development in potato field
 
More details
Hide details
1
Department of Plant Pathology, National Research Centre El-Behoos St., 12622, Giza Egypt
CORRESPONDING AUTHOR
Nehal S. El-Mougy
Department of Plant Pathology, National Research Centre El-Behoos St., 12622, Giza Egypt
 
Journal of Plant Protection Research 2009;49(1):57–62
KEYWORDS
TOPICS
ABSTRACT
The fungicidal effect of some essential oils against Alternaria solani one of the species that cause early blight of potato was evaluated under in vitro and field conditions. Effect of carnation, caraway, thyme oils and the chemical fungicide Ridomil MZ 72 at various concentrations on mycelial growth of A. solani was tested. Carnation oil had the strongest and most extensive inhibitory effect on fungal growth. Slightly less effective were caraway and thyme oils followed by the chemical fungicide. Extended field trails for two cultivation seasons proved that the application of essential oils twice as foliar spray had a superior effect to the fungicide treatment for reducing the early blight incidence comparing with untreated control. An opposite relationship between the disease incidence and concentrations of applied essential oils was observed. The increase in potato yield also followed the same trend. The highest reduction in disease incidence and yield increase was recorded in treatments with 1% of carnation, caraway and thyme oils in descending order. Ridomil MZ 72 applied at the dose recommended by manufactories had a low effect in this regard. Essential oils treatments might be used as easily applied, safe and cost effective control methods against such plant diseases
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
 
REFERENCES (22)
1.
Alefyah A., Avice M.H. 1997. The fungicidal properties of plant extracts and essential oils. Plant Pathology-Global Perspectives of an Applied Science. E:\potato\The BSPP-Archives-BSPP Presidential Meeting 1997.htm (Offered Poster).
 
2.
Bång U. 1995a. Natural plant extracts-control of fungal pathogens of potato. Proc. of the Swedish crop protection conference: Svenska Växtskyddskonferencen: Jordbruk Skadedjur, växtsjukdomar och ogres: 371–381.
 
3.
Bång U. 1995b. Essential oils as fungicides and sprout inhibitors in potatoes. p. 318– 324. In: Proc. of the EAPR pathology section meeting „Phytophthora infestans150” (L.J. Dowley, E. Bannon, L. Cooke, T. Keane, E. O ́Sullivan, eds.). Dublin, 10–16 September, 1995.
 
4.
Bång U. 1999. Control of seed borne pathogens by natural volatile substances. In: Abstracts of the EAPR 14th triennial conference .Sorrento, 2–7 May 1999.
 
5.
Brull S., Coote P. 1999. Preservative agents in foods: mode of action and microbial resistance mechanisms. Inter. J. Food Microbiol. 50: 1–17.
 
6.
Caolotanski J.M., Hanson L.E., Hill A.L., Hill J.P. 2002. Use of Melaleuca alternifolia oil for plant disease control. Phytopathology 92, p. 512.
 
7.
Campo J., Nguyen-The C., Sergent M., Amito M.J. 2003. Determination of most bioactive phenolic compounds from rosemary against Listeria monocytogenes: influence of concentration, pH and NaCl. J. Food Sci. 68: 2066–2071.
 
8.
Cohen Y., Gisi U., Mosinger E. 1991. Systemic resistance of potato plants against Phytophthora infestans induced by unsaturated fatty acids. Physiol. Mol. Pl. Pathol.38: 255–263.
 
9.
El-Toony A.M.E., Awad N.G.H., Tadrous M.F.I. 2003. Chemical and biochemical control of tomato damping-off disease under nursery conditions with special reference to the antagonism between the causal pathogens. Egypt. J. Appl. Sci. 18: 47–68.
 
10.
Hannukkala A., Keskitalo M., Laamanen J., Rastas M. 2002. Control of potato late blight with Caraway and Dill extracts. p. 279–280. In:. Proc. of the sixth workshop of a European network for development of an integrated control strategy of potato late blight (H.T.A.M. Schepers, C.E. Westerdijk, eds.). 26–30 September 2001, Edinburgh, Scotland.
 
11.
Juven B.J., Kanner J., Sched F., Weisslowicz H. 1994. Factors that interact with the antibacterial of thyme essential oil and its active constituents. J. Appl. Microbiol. 76: 626–631.
 
12.
Kaur J., Arora D. 1999. Antimicrobial activities of species. Int. J. Antimicrob. Agents. 12: 257–262.
 
13.
Keskitalo M. 2002. Production and composition of antimicrobial extracts from caraway. In: Abstract book, 5th European Symposium Industrial Crops and Products. Amsterdam, 24–26 April 2002, 95 pp.
 
14.
Kim J., Marshall M.R., Wei C. 1995. Antibacterial activity pf some essential oils components against five foodborne pathogens. J. Agric. Food Chem. 43: 2839–2845.
 
15.
essential oils components against five foodborne pathogens. J. Agric. Food Chem. 43: 2839–2845.
 
16.
Naqui S.H.A., Khan M.S.Y., Vohora S.B. 1994. Antibacterial, antifungal and anthelmintic investigation on Indian medicinal plants. Fitoterapia 62: 221–228.
 
17.
Nascimento G.G., Locatelli J., Freitas P.C. 2000. Antibacterial activity of plants extracts and phytochemical on antibiotic resistant bacteria. Braz. J. Microbiol. 31: 247–256.
 
18.
Nychas G.J.E. 1996. Natural antimicrobial from plants. p. 235–258. In: “New Methods of Food Preservation” (G.W Gould, ed.). Londres , CRC Press.Pasche J.S., Wharam C.M., Gudmestad N.C. 2004. Shift in sensitivity of Alternaria solani in response to Q (0) I fungicides. Plant Dis. 88: 181–187.
 
19.
Pasche J.S., Piche L.M., Gudmestad N.C. 2005. Effect of the F129L mutation in Alternaria solani on fungicides affecting mitochondrial respiration. Plant Dis. 89: 269–278.
 
20.
Rotem J. 1998. The Genus Alternaria; Biology, Epidemiology, and Pathogenicity. APS Press, St. Paul, Minnesota.Salvat A., Antonnacci L., Fortunato R.H., Suarez E.Y., Godoy H.M. 2001. Screening of some plants from Northern Argentine for their antimicrobial activity. Lett. Appl. Microbiol. 33: 93–297.
 
21.
Simões C.M.O., Schenkel E.P., Gosmann G., Mello J.C.P., Mentz L.A., Petrovick P.R. 2003. Farmacognosia da Planta ao Medicamento.5th ed. UFRGS/UFSC: Porto Alegre/Florianópolis.Waals J.E., Korsten L., Slippers B. 2004. Genetic diversity among Alternaria solani isolates from potatoes in South Africa. Plant Dis. 88: 959–964.
 
22.
Winer B.J. 1971. Statistical Principles in Experimental Design. 2nd ed. MiGraw-Hill Kogakusha, LTD.
 
eISSN:1899-007X
ISSN:1427-4345