Apple necrotic mosaic virus (ApNMV) is the main pathogenic factor of apple mosaic disease in China. Guojun Hu et al. studied ApNMV occurrence in 188 apple plants and analyzed its distribution in different tissues and sequence diversity from 2019 to 2023: https://doi.org/10.1094/PDIS-11-24-2491-RE

Leaf spot disease restricts the production and utilization of #Elymus plants. Jiaqi Liu, Longhai Xue, and Chunjie Li conducted a 2-year study on Elymus plants across both natural and cultivated grasslands in the Tibetan Plateau of China: https://doi.org/10.1094/PDIS-10-24-2201-SR

“Genetic Dissection of Powdery Mildew Resistance in Emmer Wheat WL509 using Bulked Segregated RNA Sequencing,” by Yaoxue Li et al. Read the article in Plant Disease, Volume 109, Number 11 to learn more: https://doi.org/10.1094/PDIS-02-25-0366-RE 🌾

Sting nematode is a yield-limiting plant-parasitic #nematode in Florida potato production and often managed using 1,3-dichloropropene fumigation. Zane Joseph Grabau et al. tested the efficacy of alternative nematicides and nematicide rates: https://doi.org/10.1094/PDIS-12-24-2626-RE

Deepak Shantharaj et al. investigated the outcome of single and simultaneous infection of tomato plants by parasitic root-knot #nematode Meloidogyne spp. and foliar bacterial plant pathogen #Xanthomonas perforans. Learn more: https://doi.org/10.1094/PDIS-01-25-0136-SC

Emily Braithwaite et al. conducted the first survey of plant-parasitic nematode communities affecting golf course putting greens across multiple seasons in the Pacific Northwest of the United States. Read the article to learn more about their findings: https://doi.org/10.1094/PDIS-02-25-0431-RE ⛳️

Potato late blight (PLB), caused by #Phytophthora infestans, can cause extensive economic damage. Through in vitro and in planta experiments, Tomke Musa et al. investigated whether #Frangula alnus directly or indirectly controlled PLB. Learn more: https://doi.org/10.1094/PDIS-12-24-2582-RE

“Multi-Year Evaluations of an FTA Card–Based Detection Protocol for Four Vector-Borne Viruses Affecting Potato,” by Jason T. Ingram et al. Read the article in Plant Disease, Volume 109, Number 11 to more: https://doi.org/10.1094/PDIS-11-24-2454-RE

Results from Jing Huang et al. enrich our understanding of the #phalaenopsis orchid virome and within-host virus diversity and provide a valuable tool for early diagnosis and management of viral diseases: https://doi.org/10.1094/PDIS-11-24-2417-SC

Tuber rot caused by #Fusarium cugenangense is a serious threat to the cultivation of Gastrodia. Results from Jianxin Chen et al. suggest that endophytic Streptomyces globisporus strain WB03 may be effective in controlling tuber rot disease: https://doi.org/10.1094/PDIS-09-24-1994-RE

Imane Laraba et al. provide new insights into the occurrence of #Fusarium crown rot of wheat, its causative agents, and the potential to contaminate grain in southern Illinois in “Etiological Agents of Fusarium Crown Rot in Illinois Wheat.” Learn more: https://doi.org/10.1094/PDIS-09-24-2034-RE 🌾

Zheng Liu et al. confirm that citrus yellow vein clearing virus is the causal agent of spring shoot leaf curl disease in ‘Shatangju’ mandarin, a major commercial citrus cultivar in Guangxi Province, China. Learn more: https://doi.org/10.1094/PDIS-12-24-2700-SC

“Weed Hosts: Hidden Reservoirs for Whitefly-Transmitted Viruses Threatening Georgia Cucurbits,” by Dalvir Kaur Dhadly et al. Read the article to learn more: https://doi.org/10.1094/PDIS-12-24-2730-RE

Since 2016, the leaf spot disease of potato in Guizhou Province, China, has become increasingly serious. Hong Tan et al. identified and characterized the pathogenic fungi causing leaf spot disease in the 4 main potato production areas in Guizhou Province: https://doi.org/10.1094/PDIS-08-24-1781-SR

Apple bitter rot field losses in Virginia range from 20 to 90% annually. In a 2-year study, Matheus C. Borba et al. assessed 18 treatments to determine fungicide efficacy against apple bitter rot. Learn more: https://doi.org/10.1094/PDIS-09-24-1824-RE

Colletotrichum species from the Acutatum complex—causal pathogens of postharvest apple bitter rot in Europe—are now major preharvest threats. Martina Calì et al. investigated the diversity and pathogenicity in apple orchards across Northern Italy: https://doi.org/10.1094/PDIS-12-24-2671-RE

Feature Article alert! 🚨 “Valsa Canker of Apple in China: Can Host Nutrition Tame a Devastating Disease?” by Xiaofei Liang et al. Free to read in Plant Disease: https://doi.org/10.1094/PDIS-08-24-1657-FE

Editor’s Pick: To understand the complexities of cross-taxa coinfections, Daisy H. Ahumada et al. investigated the interactions between a wood-decay pathogen, Ganoderma adspersum, and a bacterial pathogen, Agrobacterium tumefaciens, in almond orchards: https://doi.org/10.1094/PDIS-12-24-2664-RE

Ying Zhang et al. evaluated resistance to bacterial angular leaf spot of 126 cucumber core germplasm accessions and performed a genome-wide association study using 1,642,740 single nucleotide polymorphisms. Learn more: https://doi.org/10.1094/PDIS-09-24-1876-RE

Benjamin S. Congdon, Jonathan R. Baulch, and Alistair R. F. Hall evaluated the resistance responses of eight canola varieties when challenged with three genetically diverse turnip yellows virus isolates under greenhouse conditions. Learn more: https://doi.org/10.1094/PDIS-03-25-0598-RE

Special Report: “Characterization of Puccinia sorghi Isolates from South Africa,” by Lineo A. Maphobole et al. Read the article to learn more: https://doi.org/10.1094/PDIS-12-24-2585-SR

In Spain, three fungi are linked to branch dieback, shoot blight, and vascular wilt in super-high-density olive plantations. Eugenio Llorens et al. studied their interactions on disease progression in multi-infection trials on Arbequina plants: https://doi.org/10.1094/PDIS-11-24-2466-RE

Special Report: “A Rapid On-Site Visualization Detection System for Fusarium oxysporum f. sp. cubense Tropical Race 4 Utilizing RPA-CRISPR/Cas12a,” by Lili Zhu et al. Learn more: https://doi.org/10.1094/PDIS-11-24-2512-SR

Sai Wang et al. designed a specific primer pair (XfOG4-F/XfOG4-R) through comparative genomic analysis of 660 genomes from the genus #Xanthomonas for the rapid detection of Xanthomonas fragariae in strawberry. Learn more: https://doi.org/10.1094/PDIS-11-24-2299-RE

Special Report: “Development of a Triplex Quantitative PCR System for the Detection of Parastagonospora nodorum, Zymoseptoria tritici, and Pyrenophora tritici-repentis from Wheat,” by Heting Fu et al. Read the article to learn more: https://doi.org/10.1094/PDIS-01-25-0003-SR

Ying He et al. identified a biocontrol agent—Bacillus velezensis XJ20—and assessed the antifungal efficacy against Stagonosporopsis caricae, a fungal isolate obtained from rotten pumpkin fruits. Learn more: https://doi.org/10.1094/PDIS-11-24-2394-RE

Charcoal rot of soybean is a major disease of economic significance worldwide. Alemu Mengistu et al. evaluated new methods to identify resistant and susceptible genotypes when inoculated with the causal fungus in nonfield environments. https://doi.org/10.1094/PDIS-10-24-2230-RE

Special Report: “Systematic Surveillance of Fusarium Head Blight in the Southern Region of the Republic of Korea,” by Hosung Jeon et al. Learn more: https://doi.org/10.1094/PDIS-02-25-0282-SR

In Chile, data on fungicide efficacy against apple twig and branch pathogens are limited. Adrián Valdez-Tenezaca et al. tested fungicides against #Botryosphaeria canker and dieback in vitro, in greenhouses, and in the field. Learn more: https://doi.org/10.1094/PDIS-11-24-2427-RE 🍎

Jonathan Phillips et al. show that trace amounts of ‘Candidatus Liberibacter asiaticus’ (CLas) can go undetected in qPCR assays when the internal standard is too abundant or too dissimilar to CLas. Learn more: https://doi.org/10.1094/PDIS-12-24-2714-RE

Special Report: “Multiplexed Real-Time and Digital PCR Tools to Differentiate Clades of Plasmopara viticola Causing Downy Mildew in Grapes,” by Lexi Heger et al. Read the article to learn more: https://doi.org/10.1094/PDIS-01-25-0173-SR

Jun Wang et al. developed species-specific primers to facilitate the rapid identification of #Verticillium species. Learn more: https://doi.org/10.1094/PDIS-10-24-2227-RE

Shani Friedman et al. explored the potential of quantitative whole-plant physiological analysis over traditional visual estimates for understanding and detecting plant diseases. Learn more: https://doi.org/10.1094/PDIS-07-24-1523-RE

Special Report: “Rapid Detection of Frogeye Leaf Spot Pathogen in Seeds by LAMP Assays to Protect Soybean Production,” by Xiaoshan Tan et al. Read the article to learn more: https://doi.org/10.1094/PDIS-10-24-2156-SR

To facilitate research on tomato brown rugose fruit virus (ToBRFV), Mareike J. Rohde, Annette Niehl, and Heiko Ziebell constructed a full-length clone of the ToBRFV strain PV1241 (designated pJL89-ToBRFV) using Gibson assembly: https://doi.org/10.1094/PDIS-08-24-1665-RE

Feature article! 🚨 Daniela E. Cardenas et al. explore the latest advances in detection, control, and cultural practices that can be integrated or stand alone to help thwart rot caused by fungal and bacterial postharvest pathogens of fruit: https://doi.org/10.1094/PDIS-10-24-2263-FE

Editor’s Pick: “Potential for Elite Veneer Poplar on Marginal Phytophthora spp.–Infected Christmas Tree Lands,” by William Henry Kohlway et al.: https://doi.org/10.1094/PDIS-07-24-1558-RE 🌲

Oadi Matny, Michael D. Miller, and Brian Joel Steffenson demonstrate that Hordeum jubatum can be infected by isolates of important barley pathogens but typically not with the same degree of compatibility as with susceptible barleys. Learn more: https://doi.org/10.1094/PDIS-03-25-0472-RE

Jiling Wang, Liyan Zhu, and Chuan-qing Zhang found Alternaria alternata on Fritillaria thunbergii has developed serious resistance to dicarboximide fungicides. Learn more: https://doi.org/10.1094/PDIS-12-24-2638-RE 🌼

Read “Development of a Tetraplex Reverse Transcription Digital PCR Assay for Three Carlaviruses and an Ilarvirus Infecting Hop and Viral Titer Quantification in Different Tissue Types,” by Natalia Herrera-Blitman et al. in Vol. 109, No. 9 of Plant Disease: https://doi.org/10.1094/PDIS-11-24-2351-RE

Three viruses causing mosaic-like symptoms in sugarcane and related grasses have been reported in Louisiana since 1919. Dimitre Mollov et al. suggest an Asian origin of sorghum mosaic virus infecting sugarcane in Louisiana and the Western Hemisphere: https://doi.org/10.1094/PDIS-11-24-2359-RE

Rice stripe virus disease, transmitted by the small brown planthopper, is a devastating disease of rice in eastern Asia. Takuya Shiba et al. found the combination of nursery box and field insecticide applications was the most effective at disease control: https://doi.org/10.1094/PDIS-08-24-1707-RE

“Synergistic Effect and Water-Dispersible Tablet of Propamidine and Flusilazole Against Botrytis cinerea,” by Yonghui Qiao et al. Read now in Vol. 109, No. 9 of Plant Disease: https://doi.org/10.1094/PDIS-01-25-0153-RE

Fusarium crown rot adversely affects wheat production worldwide. Yanqiu He et al. investigated the distribution and diversity of Fusarium spp. collected from wheat samples in 12 regions of Anhui Province, China, in 2020, 2022, and 2024. Learn more: https://doi.org/10.1094/PDIS-01-25-0182-RE

Jing Jin et al. accidentally discovered that pyridaben was able to prevent cucumber powdery mildew. The research team explored the inhibitory effects and underlying mechanisms of pyridaben against Sphaerotheca fuliginea: https://doi.org/10.1094/PDIS-11-24-2483-RE

Results from Ori Molad et al. may indicate that different mechanisms are involved in the regulation of severe shoestring-like symptoms induced by ToBRFV-A134T compared with symptoms induced by ToBRFV-WT. Learn more: https://doi.org/10.1094/PDIS-07-24-1533-RE

“Identification, Characterization, Pathogenicity, and Host Range of Slafractonia indigofera sp. nov. (Dothidotthiaceae) Causing Leaf Spot Disease of Indigofera pseudotinctoria in China,” by Shan Xu et al. Read now in Vol. 109, No. 9 of Plant Disease: https://doi.org/10.1094/PDIS-01-25-0104-RE

Xiaojing Liu et al. found that powdery mildew infection in peony alters antioxidant capacity, reduces fungal community diversity, and inhibits protein synthesis. Learn more: https://doi.org/10.1094/PDIS-09-24-1984-RE

“Early-Season Predictions of Aerial Spores to Enhance Infection Model Efficacy for Cercospora Leaf Spot Management in Sugarbeet,” by Alexandra P. Hernandez et al. Available in Vol. 109, No. 9 of Plant Disease: https://doi.org/10.1094/PDIS-10-24-2153-RE

Pitaya canker disease is the primary threat to pitaya cultivation, significantly compromising fruit quality and reducing yield. Rongzheng Luo et al. identified five genes associated with pitaya canker disease through RNA-Seq analysis: https://doi.org/10.1094/PDIS-08-24-1589-RE