Collecting Plant Specimens

Collecting Plant Specimens

At some point the day comes when a plant gets sick and presents with unfamiliar symptoms. While it is possible to conduct exhaustive internet searches, it is unlikely that such searches are either efficient or result in an accurate diagnosis. For example, pests,...
Identifying Crown Gall Disease

Identifying Crown Gall Disease

Crown gall is the only serious bacterial disease that affects roses. It is found worldwide attacking some 140 plant genera in 60 different families, including rosa. Crown gall is caused by the bacteria, Agrobacterium tumefaciens, which is found in most agricultural...
Understanding and Identifying Rose Rosette Disease

Understanding and Identifying Rose Rosette Disease

History Rose Rosette (sometimes referred to as Rose Rosette Disease, “RRD”, and/or Rose Rosette Virus, “RRV”) was first described in the early 1940s and has become one of the most devastating and least understood diseases of roses. For almost 50 years after the first...