Penn State University Extension features a section on its website devoted to diseases commonly found in chrysanthemums.

Howler provides preventive, long-lasting activity on a broad spectrum of soilborne and foliar diseases, with no special handling or storage required.

BotryStop was developed for the control of pathogens such as Botrytis, Sclerotinia, and Monilinia in several crops, including ornamentals.

BioSafe Systems has introduced PerCarb, a broad-spectrum bactericide/fungicide for use in greenhouse fruits and vegetables, as well as other crops.

While damage figures from the 2015-2016 winter rains are still being compiled, researchers have found that Phytophthora and Pythium caused severe destruction in many plants.

Early detection of disease and virus symptoms in the greenhouse is critical. One expert says there are a few pathogens in particular that growers should be monitoring.

Symptoms of boxwood blight, which can spread quickly in production facilities, include leaf spots, stem cankers, and defoliation.

Water-borne bacteria was causing havoc with Westerlay Orchids’ production, so the company took preventative action to ensure the health of its plants.

To prevent problems before they start, make an agronomic program an essential part of your production plan.

The USDA Animal and Plant Health Inspection Service has allocated millions in funding to research plant pests such as boxwood blight, downy mildew, and phytophthora.

Eric Smith, BioSafe Systems’ New Horticultural Technical Sales Representative, has several years of experience that he says will help him when working with growers on critical issues facing them.

According to a report from Michigan State University, symptoms of tomato spotted wilt virus on chrysanthemum include yellow blotching and rings, necrotic lesions, and stem collapse.

Downy mildew diseases are potentially devastating to ornamental crops and at the very least can cause unsightly damage. Check out the latest research and recommendations for preventing it.