First report of causing root and crown rot on Rhododendron in Ohio and the United States.

is a diverse genus of evergreen and deciduous species grown in gardens worldwide for their attractive flowers and foliage. In summer 2023, nine of 12 potted 'Nova Zembla' plants purchased from a wholesale nursery in Ohio exhibited wilting, leaf and stem discoloration, and severely darkened and softened roots, which eventually progressed into dieback and plant death. Roots tested positive with a Phytophthora Immunostrip® (Agdia, Inc.

First Report of Bacterial Blight of Pennycress Caused by in Wisconsin.

In May 2023, pennycress (, L.) lines undergoing seed production in the Walnut Street Greenhouse at the University of Wisconsin-Madison displayed symptoms of chlorosis and black necrotic leaf spots (Fig. S1-A).

First Report of Bacterial Leaf Streak of Barley () Caused by pv. in British Columbia, Canada.

Bacterial leaf streak (BLS) of barley is caused by the Gram-negative bacterial pathogen Xanthomonas translucens (Sapkota et al. 2020). In 2021, we observed multiple hill plots with BLS symptomatic plants in a barley stripe rust nursery in Vancouver, BC, Canada.

First Report of Causing Bacterial Leaf Spot on Winterberry Holly () in Ohio.

Winterberries ( and hybrids) are deciduous species of holly whose branches bearing colorful fruit are cut in late Fall to be used for seasonal decorations. The annual wholesale value of the woody cuts is $1.5 million nationally (NASS, 2019).

First Report of Neopestalotiopsis Disease in Ohio caused by an emerging and novel species of on Strawberry.

In October 2021, strawberry ( x ) plants (cv. Ruby June) that had dark brown lesions with a diffuse black halo and light brown center and / or dark brown V-shaped necrotic areas often starting from the edge of the leaves were observed in a commercial planting in Washington County. The grower reported 50% incidence in the field when the sample was first submitted and two weeks later reported 80% incidence.

First report of causing bacterial leaf spot of lavender ( × ) in Ohio.

In July 2018, a sample of lavender var. Grosso ( × 'Grosso') from Miami County, OH was received by The Ohio State University Vegetable Pathology Laboratory in Wooster. Lavender plants were field-grown in sandy clay soil with plastic mulch under drip irrigation.