Plant Disorders: Leaf Scorch

Introduction Leaf scorch is a physiological disorder of plants. It can affect most plants if the weather conditions are favorable. Extreme temperatures, heavy winds, periods…

Tree Diseases: Black Spot of Rose

Introduction Black spot of rose is one of the most widespread plant diseases around the world. The disease is caused by the fungus Diplocarpon rosae.…

Insect Profiles: Aphids

Introduction Aphids, also known as plant lice, blackflies, or greenflies, and sometimes erroneously referred to as whiteflies, are small, soft-bodied insects that feed on the…

Tree Diseases: Pine-Oak Gall Rust

Introduction Pine-oak gall rust, also referred to as eastern gall rust, is a fungal disease that affects various pine and oak trees. The disease is…

Tree Diseases: Pine-Pine Gall Rust

Introduction Pine-pine gall rust, also referred to as western gall rust, and Woodgate gall rust, is a fungal disease that infects two and three needle…