Identification of Fusarium Wilt Disease Causal Agents in Pistachio Fields and Determination of Efficacy of Some Fungicides Controlling of The Disease

Authors : Kamil Sarpkaya, Ceren Tanrıöver, Canan Can

Pages : 107-115

Doi:10.53471/bahce.1563779

View : 63 | Download : 56

Publication Date : 2024-11-26

Article Type : Research Paper

Abstract :Pistachio (Pistacia vera) propagation is commonly carried out by seedlings and new orchards are mostly set by in situ grafting of rootstocks. Pathogenic and molecular characterization of wilt and desiccation agents observed in nurseries and young orchards were carried out and the causal species were identified as Fusarium oxysporum and F. solani. In vitro inhibition of mycelial development and conidia germination were carried out with seven fungicides selected against the disease. The plant protection product containing Prothioconazole + Spiroxamine was found to be 100% effective in mycelial growth trials in F. oxysporum isolates from 20 mgL-1 and in F. solani from 100 mL-1 at all increasing doses. . The fungicide containing phosphoric acid was found to be 18.3%-33.3% effective on both species at 2.5 times the recommended dose. On conidial germination, Prothioconazole + Spiroxamine and Captan provided 100% inhibition even at the lowest doses in all isolates tested. The EC50 values of Prothioconazole + Spiroxamine, which was determined as the most effective chemical in mycelial development and conidial germination, were 3.67 ml and 3.72 ml in F. oxysporum isolates and 56.83 ml in F. solani, respectively.
Keywords : Antepfıstığı, Fusarium Solgunluk Hastalığı, Fungisit, In vitro

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