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First Report of Tricharina gilva Associated with Bark Discoloration of Ficus carica Branches in Iran 伊朗无花果枝条树皮变色伴发毛缕虫初报
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-10-14 DOI: 10.1111/jph.70411
Hamed Negahban, Moslem Jafari, Reza Mostowfizadeh-Ghalamfarsa
{"title":"First Report of Tricharina gilva Associated with Bark Discoloration of Ficus carica Branches in Iran","authors":"Hamed Negahban,&nbsp;Moslem Jafari,&nbsp;Reza Mostowfizadeh-Ghalamfarsa","doi":"10.1111/jph.70411","DOIUrl":"https://doi.org/10.1111/jph.70411","url":null,"abstract":"<div>\u0000 \u0000 <p>Fig (<i>Ficus carica</i> L.) is an economically important fruit crop in Iran, particularly in Fars Province, where the ‘Sabz’ cultivar is extensively cultivated. During surveys of commercial fig orchards in Fars Province, branches exhibiting bark discoloration and copper-brown coloration were observed. Fungal isolations from symptomatic tissues yielded isolates with characteristic orange-brown to greyish colonies and chlamydospore-like structures. Two representative isolates, EFSB14 and EFSB17, were identified as <i>Tricharina gilva</i> based on morphological characteristics and phylogenetic analyses. Maximum Likelihood and Bayesian Inference phylogenies placed both isolates within a well-supported <i>T. gilva</i> clade. Pathogenicity assays conducted on 1-year-old ‘Sabz’ saplings under greenhouse conditions demonstrated that both isolates induced bark necrosis, browning, and internal wood discoloration within 30 days of inoculation. The fungi were successfully reisolated from symptomatic tissues based on their morphological characteristics, further supporting their association with the observed disease symptoms. To our knowledge, this study provides the first evidence of <i>T. gilva</i> associated with branch symptoms in <i>F. carica</i>, and pathogenicity assays demonstrated that the isolates can induce bark necrosis and internal discoloration on <i>F. carica</i> saplings. These findings expand the known ecological and host range of <i>T. gilva</i> and highlight the need for further investigation of its epidemiology and potential role in fig decline.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biological Control of Chickpea Wilt Using Spent Mushroom Compost (Agaricus bisporus) and T. viride 双孢蘑菇废堆肥与绿孢蘑菇生物防治鹰嘴豆枯萎病
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-10-09 DOI: 10.1111/jph.70408
Mehak Zahra, Adeeba Akram, Zuhair Hasnain, Latifa AlHusnain, Muneera D. F. AlKahtani, Manzar Abbas, Ahmed Mahmoud Ismail, Raheem Shahzad, Kotb A. Attia, Sajid Fiaz
{"title":"Biological Control of Chickpea Wilt Using Spent Mushroom Compost (Agaricus bisporus) and T. viride","authors":"Mehak Zahra,&nbsp;Adeeba Akram,&nbsp;Zuhair Hasnain,&nbsp;Latifa AlHusnain,&nbsp;Muneera D. F. AlKahtani,&nbsp;Manzar Abbas,&nbsp;Ahmed Mahmoud Ismail,&nbsp;Raheem Shahzad,&nbsp;Kotb A. Attia,&nbsp;Sajid Fiaz","doi":"10.1111/jph.70408","DOIUrl":"https://doi.org/10.1111/jph.70408","url":null,"abstract":"<div>\u0000 \u0000 <p>Spent mushroom compost (SMC), a residual byproduct of commercial <i>Agaricus bisporus</i> cultivation, poses a significant environmental challenge, with an annual global generation of approximately 17 million tons at a substrate-to-mushroom yield ratio of 5:1. Despite this, its favourable physical and nutritional properties suggest strong potential for agricultural valorization. This study investigated the efficacy of SMC individually and combined with <i>Trichoderma</i> sp. in enhancing chickpea seedling growth and managing wilt disease. Two SMC variants, fresh and composted, were evaluated. Our results showed that composted SMC combined with <i>Trichoderma</i> sp. considerably enhanced plant growth and reduced disease as compared to control. Physiochemical analysis revealed that composted SMC had higher organic matter than fresh SMC. The study concluded that an integrated approach of SMC and <i>Trichoderma</i> can serve as an organic amendment for sustainable chickpea production and disease suppression.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dark Septate Endophytes Suppress Agroathelia rolfsii Through Pathogen-Directed Antagonism and Enhanced Tomato Defence Responses 暗隔内生菌通过病原菌定向拮抗和增强番茄防御反应抑制农蚜
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-10-09 DOI: 10.1111/jph.70397
Fitra Parlindo,  Felix, Kazuhiko Narisawa
{"title":"Dark Septate Endophytes Suppress Agroathelia rolfsii Through Pathogen-Directed Antagonism and Enhanced Tomato Defence Responses","authors":"Fitra Parlindo,&nbsp; Felix,&nbsp;Kazuhiko Narisawa","doi":"10.1111/jph.70397","DOIUrl":"https://doi.org/10.1111/jph.70397","url":null,"abstract":"<div>\u0000 \u0000 <p>The persistence of sclerotia and aggressive infection by <i>Agroathelia rolfsii</i> make tomato southern blight difficult to control, yet whether dark septate endophytic (DSE) fungi can simultaneously disrupt pathogen growth and survival while enhancing host defence remains unclear. This study investigated DSE-mediated disease suppression through complementary pathogen-directed antagonism and host defence responses using integrated in vitro and greenhouse experiments. Four isolates, <i>Hyaloscypha variabilis</i> J1PC1 and LtVB3, and <i>Cladophialophora chaetospira</i> M4006 and SK51, consistently suppressed disease across successive evaluations. Mechanistic analyses showed that extracellular metabolites inhibited pathogen growth, while the selected isolates reduced oxalic acid production and disrupted the sclerotial life cycle by suppressing germination, promoting decomposition and delaying new sclerotial formation. Under greenhouse conditions, the four isolates delayed symptom development by 4–7 days and reduced disease severity by 73.3%–82.8% relative to the non-treated control. Their efficacy was further confirmed in a greenhouse validation experiment, in which all four isolates significantly reduced disease progress, with mean AUDPC values of 103.1–173.9 compared with 306.2 in the pathogen-only control. All four isolates colonised tomato roots, with colonisation further confirmed by qPCR for J1PC1 and M4006. DSE inoculation also enhanced phenylalanine ammonia-lyase (PAL) activity following pathogen challenge, particularly in J1PC1- and M4006-treated plants. Collectively, these findings demonstrate that DSE-mediated suppression of tomato southern blight involves complementary mechanisms affecting pathogen growth, survival and oxalic acid production while enhancing host defence responses, highlighting selected DSE isolates as promising biological control agents.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First Report of Corm Rot Disease of Banana (Musa paradisiaca L.) Caused by Corallomycetella elegans From India 香蕉球茎腐病初报由印度秀丽珊瑚菌引起
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-10-09 DOI: 10.1111/jph.70409
Pichai Sridhar, Shivannegowda Mahadevakumar, Perumal Palani, Midatarahalli Ramakrishnaiah Sampathkumar
{"title":"First Report of Corm Rot Disease of Banana (Musa paradisiaca L.) Caused by Corallomycetella elegans From India","authors":"Pichai Sridhar,&nbsp;Shivannegowda Mahadevakumar,&nbsp;Perumal Palani,&nbsp;Midatarahalli Ramakrishnaiah Sampathkumar","doi":"10.1111/jph.70409","DOIUrl":"https://doi.org/10.1111/jph.70409","url":null,"abstract":"<div>\u0000 \u0000 <p>During 2024–2025, an outbreak of corm rot disease was observed in <i>Musa paradisiaca</i> (banana) plantations in Vichoor and Manali, Tamil Nadu, India. Affected plants exhibited water-soaked blight symptoms. The causal fungal pathogen was isolated from infected corm tissues and cultured on potato dextrose agar (PDA). Based on cultural and morphological observations, the pathogen was preliminarily identified as <i>Corallomycetella elegans</i>. The identity of two representative isolates was confirmed through sequencing of the nrITS, <i>TUB2</i>, and <i>ACT</i> gene regions, followed by multilocus phylogenetic analysis. Pathogenicity tests reproduced the characteristic disease symptoms on healthy plants, and the pathogen was successfully re-isolated, thereby fulfilling Koch's postulates. The integration of cultural, morphological, molecular, phylogenetic, and pathogenicity evidence conclusively identified the pathogen as <i>Corallomycetella elegans</i>. Based on the available literature, this study represents the first report of <i>C. elegans</i> causing corm rot of Musa paradisiaca in India.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development and Validation of a Standard Area Diagram Set of Leaf Rust Severity in Mulberry (Morus nigra L.) 桑树叶锈病严重程度标准面积图集的建立与验证
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-10-07 DOI: 10.1111/jph.70407
José Henrique Pazutti Magri, Larissa Cavalcante Almeida, Caíque Passos Faria, Jonas Alberto Rios
{"title":"Development and Validation of a Standard Area Diagram Set of Leaf Rust Severity in Mulberry (Morus nigra L.)","authors":"José Henrique Pazutti Magri,&nbsp;Larissa Cavalcante Almeida,&nbsp;Caíque Passos Faria,&nbsp;Jonas Alberto Rios","doi":"10.1111/jph.70407","DOIUrl":"https://doi.org/10.1111/jph.70407","url":null,"abstract":"<p>Standard area diagrams sets (SADS) are useful tools to improve accuracy and reliability of the estimates of disease severity in many pathosystems. This study developed and validated a SADS for quantifying the severity of mulberry leaf rust, caused by <i>Cerotelium fici</i>. The proposed scale is composed of eight images representing increasing levels of severity (1%, 3%, 5%, 10%, 15%, 25%, 35% and 45%). Twenty raters (10 experienced and 10 inexperienced) evaluated the SADS. The raters estimated the same set of 50 images twice, first without the SADS and then with the use of the SADS. The use of the SADS significantly improved the accuracy of the estimates. The bias correction coefficients (<i>C</i><sub><i>b</i></sub>) were 0.75 and 0.98 for inexperienced raters, and 0.99 in both situations for experienced raters, without and with the use of the SADS, respectively. The correlation coefficients (<i>r</i>) increased from 0.85 to 0.96 among inexperienced raters and from 0.94 to 0.96 among experienced raters. Lin's coefficients of concordance (<i>ρ</i><sub><i>c</i></sub>) increased from 0.64 to 0.94 for inexperienced raters and from 0.93 to 0.95 for experienced raters, also comparing the assessments without and with the use of the SADS, respectively. Without the use of the SADS, experienced raters performed statistically better than inexperienced raters in all variables analysed. However, with the use of the SADS, no significant differences were observed between the groups, demonstrating the potential of the tool to reduce the effect of prior experience on the accuracy of estimates. Furthermore, the coefficient of determination (<i>R</i><sup>2</sup>) showed a significant increase with the use of the diagrammatic scale in both groups of raters. The SADS validated in this study constitutes a robust, accurate, and accessible tool for quantifying the severity of mulberry leaf rust, contributing to the advancement of epidemiological studies, the selection of resistant genotypes and disease management under field conditions.</p>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jph.70407","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mode of Action and Efficacy of Bacillus amyloliquefaciens (SIMBI BS 10) in the Control of Nematodes in Soybean and Sugarcane 解淀粉芽孢杆菌(SIMBI bs10)防治大豆和甘蔗线虫的作用机理及效果研究
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-10-05 DOI: 10.1111/jph.70396
Carlos Cesar de Oliveira Guarnieri, Thalita Suelen Avelar Monteiro, Pedro Luiz Martins Soares, Cristiane Müller, Tim Thoden
{"title":"Mode of Action and Efficacy of Bacillus amyloliquefaciens (SIMBI BS 10) in the Control of Nematodes in Soybean and Sugarcane","authors":"Carlos Cesar de Oliveira Guarnieri,&nbsp;Thalita Suelen Avelar Monteiro,&nbsp;Pedro Luiz Martins Soares,&nbsp;Cristiane Müller,&nbsp;Tim Thoden","doi":"10.1111/jph.70396","DOIUrl":"https://doi.org/10.1111/jph.70396","url":null,"abstract":"<p>The use of biological products has been identified as a sustainable and effective strategy for the control of nematodes in agriculture. However, a better understanding of the mode of action of these microorganisms and how they affect the vitality and multiplication of nematodes in plants is needed. Thus, this study aimed to evaluate the efficacy of and identify the mechanisms by which <i>Bacillus amyloliquefaciens</i> strain SIMBI BS 10 acts in the control of nematodes in soybean and sugarcane. Experiments were conducted to investigate the association of <i>B. amyloliquefaciens</i> with soybean roots to detect biofilm formation and endophytic colonisation. The in vitro production of proteases and chitinases by the microorganisms was evaluated. The nematicidal effects of the substances produced by the microorganisms on different nematodes were tested. To confirm the in vivo efficacy of this strain for the control of nematodes, assays were performed in pots (soybean and sugarcane). Different doses of the microorganisms were applied to the planting furrow, and the plants were inoculated with <i>M. incognita</i>, after which the nematode reproduction and damage caused to the roots (galls) were evaluated. The results indicated that the SIMBI BS 10 isolate of <i>B. amyloliquefaciens</i> has the ability to form biofilms on the root surface and colonise the root tissues. Chitinases were not detected; however, colonies synthesised proteases and metabolites with effective nematicidal effects against three nematode species. These mechanisms can facilitate the control of <i>M. incognita</i> and minimise the damage caused by this nematode to soybean and sugarcane in the early stages of these crops.</p>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jph.70396","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First Report of Subepidermal Hyphal Growth Associated With Scab Lesions Caused by Venturia effusa on Pecan Leaf Veins 皮下菌丝生长与山核桃叶脉积液ventureia引起的痂性病变有关的首次报告
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-09-30 DOI: 10.1111/jph.70404
Jordan Brungardt, Clive H. Bock
{"title":"First Report of Subepidermal Hyphal Growth Associated With Scab Lesions Caused by Venturia effusa on Pecan Leaf Veins","authors":"Jordan Brungardt,&nbsp;Clive H. Bock","doi":"10.1111/jph.70404","DOIUrl":"https://doi.org/10.1111/jph.70404","url":null,"abstract":"<div>\u0000 \u0000 <p>The fungal phytopathogen <i>Venturia effusa</i>, causal agent of pecan scab, has previously been regarded as having a subcuticular lifestyle. This pathogenic lifestyle is characterized by infection hyphae and stroma populating the area between the cuticle and epidermal cells of infected tissue. While observing thin sections of infected major leaf veins of pecan (<i>Carya illinoinensis</i>) cultivars ‘Desirable’ and ‘Wichita’, isolated necrotic/oxidized cells deep within the ground tissue were routinely observed. Various staining methods including chlorazol black E/trypan blue, thionin/orange G and trypan blue-only, as well as fluorescent imaging with a wheat germ agglutinin fluorophore conjugate were performed to show vertical growth of infection hyphae through the ground tissue of major veins underlying pecan scab lesions. Subepidermal infection hyphae were also observed in scab lesions on ‘Cape Fear’ and ‘Pawnee’ pecan cultivars, although further molecular investigation will be required to definitively answer if the subepidermal hyphae observed are indeed <i>V. effusa</i>. The modified trypan blue staining method developed for this research has several benefits over staining methods currently used including eliminating the need for an autoclave and the use of the clearing agent chloral hydrate, which is classified as a controlled substance. It also reduces histological processing time from days to under an hour. Vertical growth of the hyphae through veins was often limited only by the presence of the vascular bundle; however, ‘Desirable’ appeared to arrest the spread of hyphae via lignification of parenchyma ground tissue. These new insights should help focus future research to answer questions about disease progression of the pecan scab pathosystem.</p>\u0000 </div>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biochemical Profile and Antifungal Activity of Endophytic Bacteria From Roots of Piper nigrum L. (Piperaceae) Against Phytopathogenic Fungi 胡椒科胡椒根内生细菌对植物病原真菌的生化特性及抑菌活性研究
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-09-28 DOI: 10.1111/jph.70398
Luana Cardoso de Oliveira, Alessandra Keiko Nakasone, Lidia Lacerda, Cláudia Maria da Silva Costa de Oliveira, Walkymário de Paulo Lemos, Kátia de Lima Nechet, Jorge Teodoro de Souza, Bernardo de Almeida Halfeld-Vieira, Patrícia Santana Barbosa Marinho, Andrey Moacir do Rosario Marinho
{"title":"Biochemical Profile and Antifungal Activity of Endophytic Bacteria From Roots of Piper nigrum L. (Piperaceae) Against Phytopathogenic Fungi","authors":"Luana Cardoso de Oliveira,&nbsp;Alessandra Keiko Nakasone,&nbsp;Lidia Lacerda,&nbsp;Cláudia Maria da Silva Costa de Oliveira,&nbsp;Walkymário de Paulo Lemos,&nbsp;Kátia de Lima Nechet,&nbsp;Jorge Teodoro de Souza,&nbsp;Bernardo de Almeida Halfeld-Vieira,&nbsp;Patrícia Santana Barbosa Marinho,&nbsp;Andrey Moacir do Rosario Marinho","doi":"10.1111/jph.70398","DOIUrl":"https://doi.org/10.1111/jph.70398","url":null,"abstract":"<p>Beneficial endophytic bacteria may confer advantages to their host plants and to the environment by pathogen control, while reducing pesticide use. The aim of this work was to determine the biochemical profile and antifungal activity of endophytic bacteria from black pepper roots against <i>Fusarium solani</i> f. sp. <i>piperis</i>, <i>F. oxysporum</i>, and <i>Colletotrichum gloeosporioides</i>, which cause fusariosis and anthracnose in black pepper. One hundred and sixty-four endophyte bacteria strains isolated from black pepper roots were tested in vitro against three phytopathogenic fungi. Seven selected antagonistic strains were identified at the genus level by sequencing the 16S region of the ribosomal RNA. In addition, the production of lytic enzymes and siderophores was evaluated that may be related to the biocontrol of pathogenic microorganisms. The effect of ethyl acetate and ethanolic extracts of antagonistic strains on the germination of pathogen spores was evaluated. Strains C5.4, C5.9, T1.5, T4.1, T4.7, T6.2, and T6.4 showed antifungal activity with inhibition ranging from 30.27% to 61.42%, and were identified as species of the genus <i>Burkholderia</i>. The biochemical profile showed that strains produced lipase, esterase, protease, and siderophores, which may be related to their antifungal activity. The best results of antifungal activity were shown by the ethyl acetate extracts of strains C5.4, C5.9, T4.7, T6.2, T6.4, and T4.1, with percentages ranging from 4.71% to 51.89%. This study demonstrated that endophytic bacteria from black pepper have potential for the biocontrol of fungal diseases and can be further investigated to obtain a formulation for the control of pathogenic microorganisms associated with this crop.</p>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jph.70398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial and Seasonal Characterization of Climatic Favourability for Neonectria ditissima and Initial European Canker Development in High-Altitude Apple-Producing Regions of Southern Brazil 巴西南部高海拔苹果产区新树线虫和初发欧洲溃疡病气候有利条件的空间和季节特征
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-09-25 DOI: 10.1111/jph.70401
Marilia Feliciano Goulart Pereira, Daiana Petry Rufato, Leo Rufato, Leonardo Jose Biffi, Marcelo Alves Moreira, Ricardo Trezzi Casa, Fabio Nascimento da Silva, Yasmin Rodrigues, Bruno Zanete Nesi, Stephanye Fanton, Paula Coimbra Nunes, Leonardo Araújo, Amauri Bogo
{"title":"Spatial and Seasonal Characterization of Climatic Favourability for Neonectria ditissima and Initial European Canker Development in High-Altitude Apple-Producing Regions of Southern Brazil","authors":"Marilia Feliciano Goulart Pereira,&nbsp;Daiana Petry Rufato,&nbsp;Leo Rufato,&nbsp;Leonardo Jose Biffi,&nbsp;Marcelo Alves Moreira,&nbsp;Ricardo Trezzi Casa,&nbsp;Fabio Nascimento da Silva,&nbsp;Yasmin Rodrigues,&nbsp;Bruno Zanete Nesi,&nbsp;Stephanye Fanton,&nbsp;Paula Coimbra Nunes,&nbsp;Leonardo Araújo,&nbsp;Amauri Bogo","doi":"10.1111/jph.70401","DOIUrl":"https://doi.org/10.1111/jph.70401","url":null,"abstract":"<p>Apple production in southern Brazil is responsible for all national output. However, production is limited by phytosanitary constraints, particularly European canker (EC), caused by <i>Neonectria ditissima</i>. In this context, understanding the climatic factors associated with the infection and development of EC is essential to support more effective and sustainable management strategies. This study aimed to characterize the spatial and seasonal climatic favourability for <i>N. ditissima</i> infection and the initial development of European canker in some of the most productive high-altitude apple-producing regions of southern Brazil using the <i>R</i><sub><i>m</i></sub> risk model proposed by Kim and Beresford. The <i>R</i><sub><i>m</i></sub> risk model integrates rainfall frequency, precipitation amount, and the average number of daily hours with temperatures between 11°C and 16°C into a dimensionless indicator of climatic favourability, based on historical meteorological data from 2016 to 2024 for some of the most productive high-altitude apple-producing regions in southern Brazil. The <i>R</i><sub><i>m</i></sub> risk data were aggregated on a monthly scale to assess seasonality, seasonal distribution and interannual variability of climatic risk. Intermediate to high <i>R</i><sub><i>m</i></sub> values were observed in some of the most productive high-altitude apple-producing regions, including Painel, São Joaquim and Urupema, indicating highly favourable climatic conditions for <i>N. ditissima</i> infection and the initial development of EC. Intermediate to high <i>R</i><sub><i>m</i></sub> risk values were predominantly concentrated from autumn through spring, with the highest seasonal mean values generally occurring during spring and autumn. In contrast, the lowest risk levels were observed during summer (December to February), with low interannual variability. This pattern indicates the presence of recurrent seasonal risk periods associated with increased environmental favourability for <i>N. ditissima</i> establishment, spread and early EC development. The results demonstrate that some of the most productive high-altitude apple-producing regions exhibit persistent climatic suitability for <i>N. ditissima</i> infection and initial development of EC, reinforcing the relevance of the <i>R</i><sub><i>m</i></sub> risk index. Although it should not be interpreted as a direct predictor of disease incidence, it provides a quantitative epidemiological framework for identifying climatic risk patterns and supporting future validation, forecasting and integrated disease management programs in high-altitude apple-producing regions of southern Brazil.</p>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jph.70401","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to ‘Efficacy of Dual-Mode Fungicides in Management of Northern Leaf Blight (Exserohilum turcicum) and Quantification of Yield Losses in Ethiopian Seed Maize Systems’ 对“双模式杀菌剂防治北方叶枯病(exserhilum turcicum)的效果及埃塞俄比亚种子玉米产量损失量化”的修正
IF 1.2 4区 农林科学
Journal of Phytopathology Pub Date : 2026-09-25 DOI: 10.1111/jph.70400
{"title":"Correction to ‘Efficacy of Dual-Mode Fungicides in Management of Northern Leaf Blight (Exserohilum turcicum) and Quantification of Yield Losses in Ethiopian Seed Maize Systems’","authors":"","doi":"10.1111/jph.70400","DOIUrl":"https://doi.org/10.1111/jph.70400","url":null,"abstract":"<p>\u0000 <span>Haile, M.</span>, <span>Z. Bekeko</span>, <span>D. Wegary</span>, <span>H. Terefe</span>, and <span>L. M. Suresh</span>. <span>2026</span>. “ <span>Efficacy of Dual-Mode Fungicides in Management of Northern Leaf Blight (<i>Exserohilum turcicum</i>) and Quantification of Yield Losses in Ethiopian Seed Maize Systems</span>.” <i>Journal of Phytopathology</i> <span>174</span>, no. <span>5</span>: e70380. https://doi.org/10.1111/jph.70380\u0000 </p><p>For convenience, the full author list is as follows:</p><p>Mesele Haile, Zelalem Bekeko, Dagne Wegary, Habtamu Terefe, L.M. Suresh</p><p>All other author names, affiliations and the article content remain correct and unchanged.</p><p>The original article has been updated to reflect the correction.</p><p>We apologize for this error.</p>","PeriodicalId":16843,"journal":{"name":"Journal of Phytopathology","volume":"174 5","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jph.70400","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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