Fungal Diseases in Lavender Fields of the Lakes Region of Turkey

Abstract

Lavender (Lavandula spp.) is an economically significant aromatic plant widely cultivated in the Lakes Region of Turkey. This study aimed to determine fungal diseases affecting lavender cultivation in the region and to assess disease severity. A total of 277 fungal isolates were obtained from 98 symptomatic lavender plants collected from Isparta, Afyonkarahisar, Denizli, and Burdur. The most frequently isolated fungal genera were Fusarium (5.92–17.38%), Epicoccum (3.78–7.03%), Alternaria (3.00–5.40%), Rhizoctonia (0.80–1.20%), and Macrophomina (2.30%). Pathogenicity tests on Lavandula x intermedia ‘Super A’ seedlings revealed that Rhizoctonia spp. (80.0%), Epicoccum spp. (77.7–83.3%), and Fusarium spp. (66.6–88.8%) caused varying levels of disease severity. Since the Lakes Region accounts for 42% of Turkey’s total lavender production, the findings of this study provide data that can reflect fungal pathogens and disease severity in lavender cultivation nationwide.

Keywords

• Lavandula spp.
• Lavender pathogenic fungi
• Lakes Region

Türkiye’deki Göller Bölgesi Lavanta Alanlarında Fungal Hastalıklar

Öz

Lavanta (Lavandula spp.), Türkiye’de özellikle Göller Bölgesi'nde yaygın olarak yetiştirilen ekonomik değeri yüksek aromatik bir bitkidir. Bu çalışma, bölgede lavanta tarımını etkileyen fungal hastalıkların belirlenmesi ve hastalık şiddetlerinin değerlendirilmesi amacıyla gerçekleştirilmiştir. Çalışma kapsamında, Isparta, Afyonkarahisar, Denizli ve Burdur illerinde hastalık belirtisi gösteren 98 lavanta bitkisinden toplam 277 fungal izolat elde edilmiştir. En sık izole edilen cinsler Fusarium (%5.92–17.38), Epicoccum (%3.78–7.03), Alternaria (%3.00–5.40), Rhizoctonia (%0.80–1.20) ve Macrophomina (%2.30) olarak belirlenmiştir. Lavandula x intermedia ‘Super A’ fideleri üzerinde yapılan patojenite testlerinde, Rhizoctonia spp. (%80.0), Epicoccum spp. (%77.7–83.3) ve Fusarium spp. (%66.6–88.8) farklı seviyelerde hastalık şiddeti göstermiştir. Göller Bölgesi, Türkiye'deki toplam lavanta üretiminin %42’sini oluşturduğundan, bu çalışmada elde edilen bulgular lavanta tarımında görülen fungal patojenler ve hastalık şiddetleri açısından ülke geneline yansıyabilecek veriler sunmaktadır.

Anahtar Kelimeler

• Göller bölgesi
• Lavanta patojenik fungusları
• Lavandula spp.

Kaynakça

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