{"title":"First detection of Cryptosporiopsis tarraconensis on hazelnut in Türkiye and control potency of some antifungal agents","authors":"Nedim Altin, Baris Gulcu","doi":"10.1007/s13313-023-00906-y","DOIUrl":null,"url":null,"abstract":"<div><p>Hazelnut (<i>Corylus avellana</i> L.) is one of the most important agricultural products of Türkiye with over 77% of total global production occurring here. Some diseases such as powdery mildew, nectria canker and bacterial blight negatively affect hazelnut production. Changing climatic conditions have enhanced the emergence of new diseases in hazelnut orchards. This study was carried out to determine the causative pathogen of some disease symptoms seen in hazelnut orchards in 2021 and to investigate possible control methods. The isolated pathogen – <i>Cryptosporiopsis tarraconensis</i> – was identified by morphological and molecular methods. The effects of different doses of some fungicides on mycelial growth of <i>C. tarraconensis</i> were tested in plates in in vitro experiments as well as on detached leaves. According to the result, the EC<sub>50</sub> values of fluxapyroxad + difenoconazole, boscalid + pyraclostrobin and pyrimethanyl + fluopyram fungicides were 0.003, 18.149 and 56.503 µg/mL, respectively. In the detached leaf experiment, the fungicide containing boscalid + pyraclostrobin active substances had the best effect at all doses.</p></div>","PeriodicalId":8598,"journal":{"name":"Australasian Plant Pathology","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13313-023-00906-y.pdf","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Australasian Plant Pathology","FirstCategoryId":"97","ListUrlMain":"https://link.springer.com/article/10.1007/s13313-023-00906-y","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 1
Abstract
Hazelnut (Corylus avellana L.) is one of the most important agricultural products of Türkiye with over 77% of total global production occurring here. Some diseases such as powdery mildew, nectria canker and bacterial blight negatively affect hazelnut production. Changing climatic conditions have enhanced the emergence of new diseases in hazelnut orchards. This study was carried out to determine the causative pathogen of some disease symptoms seen in hazelnut orchards in 2021 and to investigate possible control methods. The isolated pathogen – Cryptosporiopsis tarraconensis – was identified by morphological and molecular methods. The effects of different doses of some fungicides on mycelial growth of C. tarraconensis were tested in plates in in vitro experiments as well as on detached leaves. According to the result, the EC50 values of fluxapyroxad + difenoconazole, boscalid + pyraclostrobin and pyrimethanyl + fluopyram fungicides were 0.003, 18.149 and 56.503 µg/mL, respectively. In the detached leaf experiment, the fungicide containing boscalid + pyraclostrobin active substances had the best effect at all doses.
期刊介绍:
Australasian Plant Pathology presents new and significant research in all facets of the field of plant pathology. Dedicated to a worldwide readership, the journal focuses on research in the Australasian region, including Australia, New Zealand and Papua New Guinea, as well as the Indian, Pacific regions.
Australasian Plant Pathology is the official journal of the Australasian Plant Pathology Society.