Contact Sara May (srm183@psu.edu) and Lina Rodriguez Salamanca (lina@iasta.edu) for suggestions to include.

Diagnostic Guides&

A diagnostic guide for Volutella blight affecting Buxaceae https://doi.org/10.1094/PHP-02-21-0052-DG

Strawberry green petal disease: A diagnostic guide https://doi.org/10.1094/PHP-02-21-0049-DG

Pathogens

Stemphylium leaf blight: A Re-emerging threat to onion production in eastern North America
https://doi.org/10.1094/PDIS-05-21-0903-FE

First expansion of the public Tomato brown rugose fruit virus (ToBRFV) Nextstrain build; inclusion of new genomic and epidemiological data https://doi.org/10.1094/PHYTOFR-01-21-0005-A

Pseudomonas alliivorans sp. nov., a plant-pathogenic bacterium isolated from onion foliage in Georgia doi.org/10.1016/j.syapm.2021.126278  

Taxonomic revision of the banana Fusarium wilt TR4 pathogen is premature (letter to the editor) https://doi.org/10.1094/PHYTO-03-21-0089-LE

Peer Review Highlights

Bacterial disease complex including bleached spot, soft rot, and blight on onion seedlings caused by complex infections https://doi.org/10.1094/PDIS-03-21-0484-RE
 
Root-lesion nematodes affecting dryland cereals in the semiarid Pacific Northwest USA
https://doi.org/10.1094/PDIS-04-21-0883-FE 

Point of care diagnosis of plant virus: Current trends and prospects https://doi.org/10.1016/j.mcp.2021.101779

Methods and Protocols

Developing a real-time PCR assay for direct identification and quantification of soybean cyst nematode, Heterodera glycines, in soil and its discrimination from sugar beet cyst nematode, Heterodera schachtii https://doi.org/10.1094/PDIS-01-21-0129-RE 
 
Development of an RT-LAMP assay for the detection of maize yellow mosaic virus in maize
https://doi.org/10.1016/j.jviromet.2021.114384
 
Rapid diagnostic detection of tomato apical stunt viroid based on isothermal reverse transcription-recombinase polymerase amplification https://doi.org/10.1016/j.jviromet.2021.114353
 
Reverse transcription recombinase polymerase amplification assay for rapid detection of the cucurbit chlorotic yellows virus https://doi.org/10.1016/j.jviromet.2021.114388 
 
Validation of quantitative and digital polymerase chain reaction assays targeting the mating types of Phyllosticta citricarpa, the causal agent of citrus black spot https://doi.org/10.1094/PHYTOFR-02-21-0011-R
 
Development of recombinase polymerase amplification combined with lateral flow detection assay for rapid and visual detection of Ralstonia solanacearum in tobacco
https://doi.org/10.1094/PDIS-04-21-0688-RE 

Notable First Reports

Herbaceous Ornamentals

First report of Coleus blumei viroid 1 in commercial Coleus blumei in the United States
https://doi.org/10.1094/PDIS-05-21-0917-PDN
 
First report of stem and foliage blight of chrysanthemum caused by Phytophthora drechsleri in the United States https://doi.org/10.1094/PDIS-03-21-0631-PDN
 
First report of Aloe vera rust caused by Uromyces aloes in an ornamental nursery in the United States https://doi.org/10.1094/PDIS-05-21-1009-PDN
 

Woody Ornamentals

Phytophthora cactorum causing bleeding canker of Acer × freemanii in southern Idaho
https://doi.org/10.1094/PDIS-12-20-2629-PDN
 
First report of Diplodia shoot blight and canker disease caused by Diplodia sapinea on ponderosa pine in Wyoming https://doi.org/10.1094/PDIS-03-21-0671-PDN
 

Vegetables and Herbs

First report of Pectobacterium brasiliense causing soft rot on mizuna (Brassica rapa var. japonica) in the United States https://doi.org/10.1094/PDIS-03-21-0644-PDN 

First report of Pseudomonas cichorii causing bacterial leaf spot on romaine lettuce (Lactuca sativa var. longifolia) and escarole (Cichorium endivia) in New Jersey
https://doi.org/10.1094/PDIS-05-21-0929-PDN
 
First report of bacterial leaf spot caused by Pseudomonas syringae pv. aptata on Swiss chard, Beta vulgaris subsp. vulgaris, in Arizona https://doi.org/10.1094/PDIS-12-20-2554-PDN
 
First report of cucurbit yellow stunting disorder virus and cucurbit chlorotic yellows virus in melon in the Central Valley of California https://doi.org/10.1094/PDIS-01-21-0184-PDN
 
First report of cucurbit chlorotic yellows virus infecting cantaloupe (Cucumis melo) in Texas
https://doi.org/10.1094/PDIS-02-21-0378-PDN
 
An anomalous detection of tomato yellow leaf curl virus in tomato in New York State
https://doi.org/10.1094/PDIS-02-21-0356-PDN
 
First report of Meloidogyne enterolobii on Thai basil in Florida
https://doi.org/10.1094/PDIS-02-21-0293-PDN
 
First report of curly top of Coriandrum sativum caused by Beet curly top virus in the Columbia Basin of Washington State https://doi.org/10.1094/PDIS-01-21-0041-PDN
 
First report of Fusarium yellows and rhizome rot caused by Fusarium oxysporum f. sp. zingiberi on ginger in the continental United States https://doi.org/10.1094/PDIS-03-21-0658-PDN
 
First report of dasheen mosaic virus infecting taro (Colocasia esculenta) in Louisiana
https://doi.org/10.1094/PDIS-04-21-0854-PDN
 

Tree Fruit and Small Fruit

First report of grapevine rupestris vein feathering virus in wine grapes in Idaho https://doi.org/10.1094/PDIS-04-21-0728-PDN
 

Field Crops

First report of spot blotch caused by Bipolaris sorokiniana on winter rye in Kentucky
https://doi.org/10.1094/PDIS-02-21-0428-PDN
 
First report of Pythium myriotylum causing root rot in Cannabis sativa in California
https://doi.org/10.1094/PDIS-02-21-0336-PDN
 
First report of ‘Candidatus Phytoplasma trifolii’ related strain associated with yellowing and witches’ broom of industrial hemp (Cannabis sativa) in Arizona https://doi.org/10.1094/PDIS-04-21-0847-PDN
 
First report of southern blight of industrial hemp caused by Athelia rolfsii in Louisiana
https://doi.org/10.1094/PHP-05-21-0084-BR
 
First report of Fusarium fujikuroi causing root tot and seedling elongation of soybean in Indiana https://doi.org/10.1094/PDIS-03-21-0570-PDN
 
First report of barley virus G in the United States and California https://doi.org/10.1094/PDIS-03-21-0478-PDN

First report of stem rust, caused by Puccinia graminis, and crown rust, caused by Puccinia coronata var. avenae f. sp. avenae, on tall fescue (Festuca arundinacea) in Georgia https://doi.org/10.1094/PDIS-01-21-0190-PDN
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