Growers can improve their prevention and management of diseases in nurseries and greenhouses by registering for the University of Florida’s Disease Management online course.

Depending on the severity of poinsettia mosaic virus symptom expression, infected poinsettias could be deemed unmarketable.

Management of leaf mold begins with recognizing early symptoms, applying preventative fungicides, and removing all infected plant material from the greenhouse.

Alternanthera mosaic virus infects a broad host range, with hosts from at least 30 taxonomic families including many commonly grown greenhouse and herbaceous ornamentals.

Copper resistance in bacterial leaf spot of tomato and pepper crops is becoming more widespread.

Without proper environmental or chemical controls, powdery mildew can spread quickly throughout the plant canopy.

Chili pepper mild mottle virus can cause mottling, flower break, necrotic spots, and stunting, and it’s been season on calibrachoas this season.

Suppliers offer a multitude of treatments for pests and diseases on garden mums.

The sporulation feature of the powdery mildew life cycle is visually evident on crop surfaces, having a fuzzy mildew appearance.

The key to keeping root disease such as pythium low is to reduce inoculum build-up within the system.

Postiva fungicide from Syngenta has been approved by the U.S. EPA for use in ornamental nurseries, greenhouses, and residential and commercial landscapes.

Air movement is critical in greenhouse environments to limit diseases such as gray mold.

Wageningen University in The Netherlands is investigating whether biorationals can be used effectively in greenhouse cultivation against soilborne plant pathogens.