Filtering by tag: Pest Management ✕

Tomato flowers with bee

2025 North Carolina Fungicide Guides for Tomato and Pepper

The fungicide spray guides for tomato and pepper are intended for commercial growers and are suggested products or programs that have been evaluated for efficacy against the disease listed. There are…

Petunias in a greenhouse

2025 Fungicide Guide for Herbaceous Ornamentals in the Greenhouse, Nursery, & Landscape

Fungicide use to manage diseases in ornamental crops is a part of an effective integrated pest management program. Efficacy of the many products available can vary widely and can be complex. This…

Cucumber downy mildew symptoms

Cucumber Downy Mildew Found, Haywood County, August 13, 2024

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

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…

Composite photograph of guava root-knot nematode damage on sweetpotato. On the left side are two photos of storage roots with galls caused by GRKN. On in the middle is GRKN galls on a sweetpotato fibrous root. On the right is a sweetpotato with skin peele

Guava Root-Knot Nematode: 2024 Emergency Management Recommendations for Sweetpotato Producers

Nothing beats the delicious and nutritious sweetpotatoes from North Carolina. Yet the guava root-knot nematode (GRKN; Meloidogyne enterolobii) continues to threaten production of this important…

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…