Phytophthora infestans, pathogen of late blight disease, presently continue to threaten the production of potatoes and tomatoes the worldwide in the 21st century, by changing its population biology. Decreased sensitivity to the fungicides used in the management of P. infestansand the support of the development of chemical alternatives with increasing environmental awareness has been gain importance. In the study planned for this purpose, P. infestanswere isolated from potato fields in the Ödemiş district of Izmir province, while 12 plants will examine antifungal efficacy against P. infestans thatwerecollected from the Ege University Campus Area, Izmir province. The prepared aqueous extracts investigated for both the mycelial growth ofP. infestans in vitro and for their potent antifungal activity on detached leaves and pot tests. On mycelial growth of P. infestans, large cocklebur and garlic extracts are the lowest effective extracts compared to other plant extracts with 85.17%, 53.60% efficiency, respectively. In detached leaves test, the ivy extract was most successful by %86.95. While eucalyptus extract for the inhibition of disease exhibitedthe best efficiency with 65.61%, thyme extract and fungicide applications in the prevention of disease are provided by 51.56% and 43.74%, respectively, in pot tests.
Dergi Türü : Ulusal
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