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Featured image: Cucumber leaf with downy mildew lesions and sporulation under a hand-held microscope for diagnosis (Photo credit: Lina Quesada)

Cucumber Downy Mildew Found in Sampson County in North Carolina

Pseudoperonospora cubensis is responsible for cucurbit downy mildew (CDM), which was detected in Sampson County on cucumbers on June 4, 2024, with a disease incidence of around 5%.On the upper side…

Botrytis blight on petunia

Fungicide Resistance in Botrytis: A Reminder for Floriculture Crop Producers

Botrytis blight (caused by Botrytis cinerea) is a well-known problem among greenhouse ornamental crop producers. This ubiquitous fungus has a wide host range, and no host resistance is available.…

Credit: A. Dombrovsky, O. Batuman, Fidan et al. (2019) and Luria et al. (2017)

Virus-Infected Tomatoes May Be Prevalent at Grocery Stores

A recent study from the University of Florida discovered high incidences of two tomato viruses (ToBRFV and PepMV) in tomato fruit among 10 grocery stores surveyed in Florida. Tomato brown rugose…

squash leave with disease symptoms

Squash Downy Mildew found in Clayton N.C.

Written by Md Ziaur Rahman Bhuiyan and Lina M. Quesada-Ocampo.Cucurbit downy mildew (CDM) is caused by an obligate oomycete, Pseudoperonospora cubensis. This disease was confirmed on squash in…

Tomato fruit

Tomato Late Blight Found in Henderson County, NC (7 Aug 2023)

Late blight on tomato has been confirmed on an organic vegetable farm in Henderson County, NC on 7 Aug 2023. A sample has been submitted for genotyping analysis to identify the strain and sensitivity…

Cucumber downy mildew

Cucurbit Downy Mildew in Haywood County, July 28, 2023

Cucumber downy mildew (CDM) has been confirmed on cucumber plant samples from a research plot at the Mountain Research Station in Haywood County, NC. Only 1% of plants showed symptoms and only 5% of…

Fresh market tomatoes

WNC Vegetable Growers: BOLO for Tomato Late Blight & Cucurbit Downy Mildew

Vegetable growers in western North Carolina: Be on the lookout (BOLO) for late blight on tomato and cucurbit downy mildew. Recent weather conditions (frequent rainfall, cloudy skies, and high…

Symptoms of ToBRFV on tomato fruit

Tomato Seed Recall for Tomato Brown Rugose Fruit Virus

Tomato brown rugose fruit virus (ToBRFV) was detected on some tomato seeds from a seed company called Fruition Seeds in New York, recently. Although there are not yet any confirmed positives for…

2022 NC Crop Protection School

2022 Crop Protection School: Emerging Threats

The 74th Annual Crop Protection School will be held virtually on Thursday, December 1, 2022 using the Zoom platform. Please use this link to register. After registration, you will be sent a passcode…

Late blight on tomato

Late Blight on Tomato in Haywood County (Aug 17, 2022)

Late blight on tomato has been confirmed from a commercial tomato field in Haywood County, NC on August 17, 2022.Growers should monitor frequently for symptoms of late blight and begin applying…