Filtering by tag: downy mildew ✕

Cucumber downy mildew

Cucurbit Downy Mildew Found 7/30/2025 in Haywood County

Cucumber downy mildew (CDM) has been confirmed on cucumber plant samples from a research plot at the Mountain Research Station in Haywood County, NC on July 30, 2025.Water-soaked lesions on the…

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…

CDM symtoms on squash leaf

Squash Downy Mildew Found in North Carolina

Written by Mariana Prieto-Torres, Savithri Purayannur, Mike Adams, and Lina M. Quesada-Ocampo Pseudoperonospora cubensis, the causal agent of cucurbit downy mildew (CDM), was confirmed on butternut…

Cucurbit leaf with yellow mosaic mottling and prominent veins

Cucurbit Downy Mildew Confirmed in Western NC, July 28, 2021

Cucumber downy mildew (CDM) has been confirmed on cucumber plant samples from a commercial grower in Haywood County, NC. Approximately 75-100% of plants were affected. Leaves showed symptoms typical…

Leaf with cucumber downy mildew symptoms

Cucumber Downy Mildew Found in North Carolina

Written by Mariana Prieto-Torres, Mike Adams, Dr. Savithri Purayannur, and Dr. Lina M. Quesada-Ocampo. Pseudoperonospora cubensis, the causal agent of cucurbit downy mildew (CDM), was confirmed on…

Cucumber downy mildew. S. Sharpe.

Cucurbit Downy Mildew Confirmed in Western NC (8/14/2020)

Cucumber Downy Mildew (CDM) has been confirmed on cucumber plants in our sentinel plot in Waynesville, NC (Haywood County). Approximately 50% of the plants were infected, but at a low severity (~5%…

Cucumber vine leaves showing yellow mottled spots and green veins

Cucumber Downy Mildew Confirmed in North Carolina | June 2020

Written by Lina Quesada-Ocampo, Kimberly D’Arcangelo, Mike Adams, and Tommy BattsCucumber downy mildew (CDM) was confirmed on a cucumber sample from a production field in Wilson County on June 8 of…

Basil downy mildew spores on underside of basil leaf

Basil Downy Mildew Found in Western N.C.

Basil downy mildew has been confirmed on the variety Genovese in our research plots in Haywood County, North Carolina on July 22, 2019. The disease has not been found on the resistant varieties…

Downy mildew on coreopsis

Downy Mildew on Coreopsis and Related Plants

The downy mildew pathogen Plasmopara halstedii was found causing leaf spotting and leaf death on a sample of coreopsis ‘Solana Golden Sphere’ submitted to the NC State Plant Disease and Insect…

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Basil Downy Mildew Reported in Haywood County - July 23, 2018

Basil downy mildew (BDM) has been observed in our sentinel plots at the Mountain Research Station in Waynesville. Symptoms first appeared on 7/16/18 and about 10% of the plants were affected.Growers…