Newsletters

In the Spring 2026 issue of the UCNFA Newsletter, the first Featured Article highlights the irrigation education priorities for nursery employees that were identified by focus groups of California nursery managers. In our second Featured Article, a summary of California’s floriculture and foliage industry from the USDA 2022 Census of Agriculture is presented. In Science to the Grower, researchers from Cal Poly SLO describe how monitoring fungicide effectiveness can help control powdery mildew in Brassica seedling production.

In this Fall 2025 issue of the UCNFA Newsletter, our Featured Article discusses current ongoing research evaluating the pathogen risks of irrigation with untreated recycled irrigation water on ornamental crops in San Diego County, including preliminary findings and potential grower implications. In Science to the Grower, we introduce an improved metric for measuring greenhouse light levels, Photosynthetic Photon Flux Density, to more accurately adjust lighting for optimal crop production.

In this Summer 2025 issue of the UCNFA Newsletter, our Featured Articles focus on diseases on nursery crops, presenting the most recent diagnostics data from ornamental nurseries in California out of the Greenhouse and Nursery Pathology Lab at UC Davis. We will also discuss the impact and biology of powdery mildew in California nurseries, including practical guidelines for identification and management.