From April to November of 2022, 2023, and 2024, Devin Bily et al. surveyed the distribution and impact of #Ceratobasidium sp. D.P. Rogers associated with vascular streak dieback of woody ornamental plants in production nurseries in Virginia: https://doi.org/10.1094/PDIS-02-25-0375-RE

Pippa J. Michael et al. developed a nondestructive, high-throughput field screening methodology that enables large-scale, reliable screening of #Brassica napus genotypes under various field conditions. Learn more: https://doi.org/10.1094/PDIS-03-25-0617-RE @theCCDM

Min Zhang et al. provide preliminary insights into the genetic mechanisms underlying poplar leaf rust and offer valuable genetic resources for breeding rust-resistant poplar varieties. Learn more: https://doi.org/10.1094/PDIS-03-25-0610-RE

“Development of Molecular Markers for the Detection of Ceratobasidium sp. D.P. Rogers Associated With Vascular Streak Dieback of Woody Ornamentals in the United States,” by Farhat Avin et al. Learn more: https://doi.org/10.1094/PDIS-01-25-0005-RE @baysalgurellab

In a 2-year field trial, Simone Piancatelli et al. tested chitosan, whey, sweet orange essential oil, Equisetum arvense, Urtica spp., and Ampelomyces quisqualis against downy mildew and powdery mildew of grapevine in Italy: https://doi.org/10.1094/PDIS-11-24-2480-RE

Using a group of 273 spring wheat landraces collected in northwest China, Miaomiao Huang et al. identified eight quantitative trait loci associated with stripe rust resistance distributed across chromosomes 1B, 2B, 3B, 5A, 6D, and 7A: https://doi.org/10.1094/PDIS-02-25-0370-RE

“Patterns of Damage Functions: Crop Yield Loss According to Injury from Disease and Pest at Varying Attainable Yields,” by Laetitia Willocquet and Serge Savary. Learn more: https://doi.org/10.1094/PDIS-03-25-0609-RE

Grape ripe rot, caused by #Colletotrichum spp., severely threatens grape yield and quality. Xiangtian Yin et al. elucidate the geographical distribution patterns of Colletotrichum spp. in China and their differential responses to fungicides: https://doi.org/10.1094/PDIS-02-25-0415-RE

Miguel Román-Écija et al. evaluated the pathogenicity and extension of stem colonization of 5 #Xylella fastidiosa strains from different subspecies isolated in Spain and Italy and inoculated on 3 widely cultivated Spanish olive cultivars: https://doi.org/10.1094/PDIS-11-24-2327-RE

Neoscytalidium dimidiatum affects dragon fruit production globally. Yung-Ching Ho et al. compared the phylogenetic and phenotypic diversity of the N. dimidiatum populations collected from dragon fruit in Taiwan with isolates from other hosts and countries: https://doi.org/10.1094/PDIS-11-24-2348-RE

Perla Rubi Nuñez-García et al. present the first association of the genera #Cophinforma and #Pseudofusicoccum, as well as several new species, causing stem blight and dieback of blueberry worldwide. Learn more: https://doi.org/10.1094/PDIS-10-24-2261-SR

Feature Article: Vicken Aknadibossian et al. provide an overview of the current global status of citrus tristeza virus, discussing its spread and impact and outlining management strategies employed around the world to protect citrus production: https://doi.org/10.1094/PDIS-08-25-1639-FE

“Mapping the Enigma of Cryptic Tomato Yellow Stunt Disease: A Synergistic Viral Infection Threatening Global Tomato Health,” by Muhammad Dilshad Hussain et al. Learn more: https://doi.org/10.1094/PDIS-04-25-0930-SC #plantdisease

Marco Carli et al. demonstrated that full-range hyperspectral data collected at leaf level can be used as a tool to rapidly and nondestructively detect flavescence dorée infection—one of the most relevant grapevine diseases in Europe—directly in the field: https://doi.org/10.1094/PDIS-04-25-0831-RE

Tar spot, caused by #Phyllachora maydis, is a threatening disease to maize production across the Americas. Fidel E. Jiménez-Beitia et al. tested an inoculation protocol for P. maydis in maize, addressing variability across geographic regions: https://doi.org/10.1094/PDIS-09-24-2046-RE

Begomoviruses cause significant yield losses of pepper. Results from Sota Koeda et al. demonstrated that introgression of pepy-1 and Pepy-2 in the homozygous state conferred durable resistance even to coinfections with two highly virulent begomoviruses: https://doi.org/10.1094/PDIS-01-25-0108-RE

Editor's Pick: Joe Tang et al. describe a broad survey of sweetbriar rose curly top–associated virus (SRCTaV; sp. Waikavirus rosae) in Aotearoa New Zealand and the United Kingdom and discuss possible origins of the disease. Learn more: https://doi.org/10.1094/PDIS-03-25-0688-RE

Editor’s Pick: Results from Hosna Alvandi et al. confirmed the occurrence of #Pantoea stewartii subsp. stewartii causing Stewart’s wilt of #maize in Iran. Learn more: https://doi.org/10.1094/PDIS-03-25-0509-SR

Results from Ali Yaghoubi, Razieh Yazdani, and Marisol Quintanilla underscored the potential of organic amendments, particularly poultry manure and Layer Manure, as alternatives to chemical nematicides in managing #Heterodera schachtii: https://doi.org/10.1094/PDIS-12-24-2645-RE

David Ygzao, Dani Shtienberg, and David Ezra found that if peacock eye disease in olive is properly managed in the first season, its severity in the succeeding season may be minute or even nonexistent. Learn more: https://doi.org/10.1094/PDIS-12-24-2654-RE

Early leaf spot (ELS) is the most prevalent and yield-limiting foliar disease affecting peanuts in Oklahoma. @MahDuffeck et al. present a 26-year summary of estimated yield losses resulting from ELS on Spanish cultivars in the state: https://doi.org/10.1094/PDIS-09-24-1815-RE

“Molecular Cytogenetic Identification of Wheat–Aegilops geniculata Derivative Line with Resistance to Powdery Mildew Encoded on Chromosome 6Ug,” by Yongfu Wang et al. Learn more: https://doi.org/10.1094/PDIS-02-25-0395-RE

Stripe rust is one of the most devastating diseases affecting wheat production worldwide. Xiaowei Xu et al. mapped and identified candidate genes for adult plant resistance to stripe rust in the Chinese wheat landrace Laohongmai: https://doi.org/10.1094/PDIS-03-25-0615-RE

Matthew A. Tancos, Jami L. Thomas, and Sydney McCauslin present the first documentation of a novel pathogenic #Alternaria species identified from the introduced range of the invasive weed garlic mustard: https://doi.org/10.1094/PDIS-03-25-0653-SC

“Evaluation of Field Pea Cultivars for Resistance to Pin Nematode (Paratylenchus nanus Type B) in North Dakota,” by Ekta Ojha et al. Learn more: https://doi.org/10.1094/PDIS-02-25-0356-RE

Scientists Identify New Fusarium Species Behind Wheat Disease Outbreak in Ethiopia: https://bit.ly/3NtlE1z Read the original article by Liza M. DeGenring et al.—freely available for a limited time: https://bit.ly/3Pszp16 @plantdisease.bsky.social #Fusarium #wheat #agriculture #plantdisease

Southern corn rust has become one of the major diseases that seriously threatens the safety of maize production in China. Qiuyu Sun et al. studied the population structure of #Puccinia polysora in the pathogen’s winter-reproductive regions: https://doi.org/10.1094/PDIS-03-24-0627-RE

Research from Albert M. Nguyen et al. explored the best treatment strategies for using cyproconazole as a postharvest fungicide for citrus. Learn more: https://doi.org/10.1094/PDIS-02-25-0444-RE

Yibin Wei et al. investigated the pathogenicity, morphology, growth characteristics, and molecular identity of the causal fungal pathogen of #sugarcane ring spot disease while assessing the resistance of various genotypes: https://doi.org/10.1094/PDIS-03-25-0589-RE

Results from Gabriel Sacher and Jay W. Pscheidt indicate that triazole fungicides applied to #Buxus spp. too soon after an infection event may not have had enough time to achieve efficacy, thus giving false nonefficacious results: https://doi.org/10.1094/PDIS-11-24-2508-RE

“Development of a Quantitative PCR Method to Detect the Bacterial Gall Pathogen Pseudomonas amygdali pv. loropetali from Loropetalum Plant Materials,” by Jiayuan Jia et al. Learn more: https://doi.org/10.1094/PDIS-11-23-2533-SR

To better understand how the shift from manual to mechanical planting in sugarcane impacts crop health, Tarciso Almeida Ferreira Junior et al. investigated soilborne pathogens that can potentially affect seed cane viability, particularly sprouting and germination: https://bit.ly/4ct9lMS

A model proposed by David Ygzao et al. implies that #Venturia oleaginea, the causal agent of peacock eye disease in olive, maintains monocyclic and polyetic characteristics in a Mediterranean climate. Learn more: https://doi.org/10.1094/PDIS-12-24-2653-RE

Kai Zhu et al. found that #Streptomyces rochei W71 possesses both plant growth-promoting properties and biocontrol capabilities against tobacco black shank, induced by #Phytophthora nicotianae: https://doi.org/10.1094/PDIS-02-25-0301-RE

Jun Wang et al. evaluated the species and distribution of #Fusarium causing ginseng root rot and the antifungal efficacy of captan and hymexazol against Fusarium spp. in China. Learn more: https://doi.org/10.1094/PDIS-03-25-0491-RE

The (TEF)-based TaqMan qPCR assay developed by Ross J. Hatlen et al. provides time-limited diagnosticians with a tool for the detection of #Diaporthe humulicola, the causal agent of halo blight of hop. Learn more: https://doi.org/10.1094/PDIS-11-24-2331-SR

“Determining the Causal Agents of Alternaria Leaf Blight and Head Rot Affecting Broccoli in the Eastern United States,” by Roy L. Davis et al. Learn more: https://doi.org/10.1094/PDIS-01-25-0117-SR

Results from Hui Ren et al. offer new resistance resources for #Fusarium head blight resistance breeding and insights for marker-assisted selection and gene cloning. Learn more: https://doi.org/10.1094/PDIS-02-25-0298-RE

A study by Weixia Wang et al. found that #Colletotrichum siamense is the most prevalent species in Thailand and reported for the first time that C. gigasporum is a global citrus pathogen. Learn more: https://doi.org/10.1094/PDIS-02-25-0432-RE

Dinesh Babu Paudel et al. designed and assessed multiple primers for PCR-based virus detection and demonstrated their capability to identify pea seed-borne mosaic virus isolates in infected plant tissues: https://doi.org/10.1094/PDIS-12-24-2709-RE

“Fludioxonil Resistance in Fusarium fujikuroi: Biological Characteristics and Resistance Mechanisms,” by Feng Zhou et al. Learn more: https://doi.org/10.1094/PDIS-03-25-0632-RE

#Tymoviruses likely emerged before the last Ice Age, first infecting brassicas in Eurasia and then diversifying in wild and cultivated solanaceous plants in the Americas. Phylogenetic and population analyses by Adrian J. Gibbs et al. trace their global spread: https://bit.ly/4u88eIJ

Venkata Rao Ganaparthi et al. conducted genome-wide association mapping and genomic predictions for bacterial fruit blotch resistance in the USDA #Citrullus amarus collection. Learn more: https://doi.org/10.1094/PDIS-12-24-2665-RE

An international study led by Adrian J. Gibbs et al.​, reveals the ancestors of modern #tymoviruses likely emerged before the last Ice Age, reshaping scientists’ understanding of the vast evolutionary history of plant disease: https://bit.ly/46OYuck 🔗 https://bit.ly/4u88eIJ

“Quantitative Trait Loci (QTL) Mapping and Kompetitive Allele Specific PCR (KASP) Marker Development for Powdery Mildew Resistance in Watermelon,” by Rahul Kumar et al. Learn more: https://doi.org/10.1094/PDIS-04-25-0737-RE

Editor’s Pick: Lucile Delatouche et al. explored the magnitude and the time of action of weather factors on the allo-inoculum dynamics of #Pseudocercospora fijiensis in Martinique. Learn more: https://doi.org/10.1094/PDIS-02-25-0342-RE

Forsythia suspensa is an important ornamental horticultural plant, and its fruit is a traditional Chinese medicine. Yanxia He et al. investigated the host-response mechanism of healthy forsythia plants inoculated with #Phomopsis velata: https://doi.org/10.1094/PDIS-02-25-0385-RE

“Host Quality and Composition of Multihost Environment Impact the Maintenance of Members of the Wheat Dwarf Disease Pathosystem in Noncrop Areas,” by Thomas Armand et al. Learn more: https://doi.org/10.1094/PDIS-10-24-2062-RE

"Assessment of Seed Treatments for Management of Pathogens Causing Seed Rot, Seedling Damping-off, and Seedling Root Rot in Alfalfa (Medicago sativa)," by Leta J. Larsen et al. Learn more: https://doi.org/10.1094/PDIS-05-24-1147-RE

Xin-Xin Liu et al. provide new clues on the sequence of events that occur when #Verticillium dahliae infects monocots versus dicots and may underlie Verticillium wilt symptoms on dicots but not on monocots. Learn more: https://doi.org/10.1094/PDIS-01-25-0114-SC