First report of causing flower blight and fruit rot on greenhouse-grown in the United States.

Erwinia pyrifoliae causes disease of pear (Pyrus spp.), apple (Malus spp.), and strawberry (Fragaria × ananassa) (Wenneker and Bergsma-Vlami 2015), which are economically important commodities in the US.

Vascular streak dieback: A novel threat to redbud and other woody ornamental production in the United States.

Eastern redbud ( L.) is a popular and high-value woody ornamental plant native to the eastern and south-central United States of America (U.S.

Uncovering the Infection Strategy of During Maize Colonization: A Comprehensive Analysis.

Tar spot, a disease caused by the ascomycete fungal pathogen , is considered one of the most significant yield-limiting diseases of maize () within the United States. may also be found in association with other fungi, forming a disease complex that is thought to result in the characteristic fisheye lesions. Understanding how colonizes maize leaf cells is essential for developing effective disease control strategies.

Characterization of Virulence Phenotypes of during 2020 in Indiana.

The soybean cyst nematode (SCN, ) is the most yield-limiting pathogen of soybean in the US. This study was carried out in order to provide updated information on SCN virulence phenotypes in Indiana. A total of 124 soil samples were collected from soybean fields in 2020 and all of them tested positive for SCN.

Whole Genome Sequencing-Based Tracing of a 2022 Introduction and Outbreak of pv. .

Globalization has made agricultural commodities more accessible, available, and affordable. However, their global movement increases the potential for invasion by pathogens and necessitates development and implementation of sensitive, rapid, and scalable surveillance methods. Here, we used 35 strains, isolated by multiple diagnostic laboratories, as a case study for using whole genome sequence data in a plant disease diagnostic setting.

First Report of Infecting Soybean in Indiana.

Soybeans () are an important crop for Indiana, playing a major role in the state's economy. In June 2021, symptomatic soybean plants were submitted to Purdue University's Plant and Pest Diagnostic Laboratory for diagnosis. Sting nematodes were observed on the surface of the washed roots using stereo- and brightfield compound microscopy.

Everything Is Faster: How Do Land-Grant University-Based Plant Diagnostic Laboratories Keep Up with a Rapidly Changing World?

Plant diagnostic laboratories (PDLs) are at the heart of land-grant universities (LGUs) and their extension mission to connect citizens with research-based information. Although research and technological advances have led to many modern methods and technologies in plant pathology diagnostics, the pace of adopting those methods into services at PDLs has many complexities we aim to explore in this review. We seek to identify current challenges in plant disease diagnostics, as well as diagnosticians' and administrators'perceptions of PDLs' many roles.

Bacterial Gall of Loropetalum chinense caused by Pseudomonas amygdali pv. loropetali pv. nov.

In 2012, stem gall samples on Loropetalum chinense were sent to Florida diagnostic labs from Alabama and Florida nurseries. A fluorescent pseudomonad was consistently isolated from the galls. The organism was originally identified in Alabama based on 16S rRNA sequencing as Pseudomonas savastanoi, which causes a production-limiting disease of olive.