Helminthosporium Turf Diseases
Helminthosporium disease affects cool season turfgrasses and can severely reduce the appearance of a lawn and lead to expensive lawn renovations. Learn more in this factsheet.
Articles
Supina Bluegrass for Lawns, Golf Courses and Athletic Fields
Supina bluegrass is a potential new grass for areas with dense shade or high traffic. Read this publication to find out where supina bluegrass should and should not be planted, and how to care for it.
Root and Crown Rots
This factsheet covers root/crown rot, which is a general term that describes disease of woody ornamentals where the causal organism attacks a plant’s root system and/or lower trunk or branches near the soil.
Purple Bordered Leaf Spot
Purple-bordered leaf spot (also called eye spot or Phyllosticta leaf spot) is a common, but mostly cosmetic, disease on maples. This factsheet describes symptoms and management.
Orchids
Article Contents Overview How to care for orchids Choose the right location Watering your orchid Potting media for orchids Orchid blooms References What are orchids? Orchids belong to the orchid family (Orchidaceae) and are exotic plants grown for their beautiful, showy, and long lasting flowers. Although most species of orchids are epiphytic (i.e., naturally grow […]
Impatiens Necrotic Spot
Impatiens necrotic spot is a viral disease that causes considerable losses to greenhouse-grown ornamentals and, to a lesser extent, vegetable crops.
Magnolia Scale
Magnolia scale sucks plant sap and excretes drippy, sticky honeydew which can turn black with mold growth. Learn more, including control, in this factsheet.
Guignardia Leaf Spot
Guignardia leaf spot is a fungal leaf spot that affects vining plants such as Boston ivy and Virginia-creeper, and is associated with a leaf spot and fruit rot of grape called black rot. Learn more here.
Golden Canker (Cryptodiaporthe Canker)
Golden canker is a visually distinct and common disease of alternate-leafed dogwoods such as pagoda dogwood, which can be lethal if on the main trunk of a tree. Learn more in this factsheet.
Euonymus Scale
Euonymus scale attacks evergreen shrub and vine forms of euonymus, along with privet, bittersweet and pachysandra. Learn to identify and manage euonymus scale in this factsheet.
Dutch Elm Disease
Dutch elm disease is a lethal fungal disease of native elms. This factsheet describes symptoms, spread and management of this serious disease.
Container Gardening
Live in an apartment or condo? You can still raise a garden’s worth of flowers or vegetables in pots and other containers by mastering the methods described in this publication.