A Guide for Central Virginia Tree Care
As living, organic things, trees grow and thrive. But, like any other living thing, they can acquire diseases, grow weak, and die. They must be taken care of to ensure that they’ll live healthy and long. Tree diseases do not only affect their aesthetic beauty and their value to a home or commercial space; they also negate the many benefits they provide. (See our last blog, 4 Reasons to Plant a Tree for Earth Day, to learn about these benefits). 4 tree diseases to look out for in Central Virginia include Black Knot Fungus, Seiridium Canker, Hypoxylon Canker, and Cedar Apple Rust, all of which can be exacerbated by tree stress, undermining tree vigor.
1. Black Knot Fungus
As its name suggests, black knots (also known as galls) are small knotty growths on cherry and purple leaf plum trees’ branches, according to Virginia Tech’s Disease Advisories. When trees are first infected, galls appear small and green and blend in, hardly noticeable. They infect and spread spores during the spring, the growing season.