An anthracnose fungus,Discula sp., has been identified as the causal agent for dogwood anthracnose. Infection of dogwoods is favored by cool, wet spring and fall weather, but can occur throughout the growing season. Drought and winter injuries weaken trees and increase disease severity. Consecutiv...
both in the wild and as an ornamental. Dogwoods are among the earliest springtime blooming trees. With its dense crown, flowering dogwood provides good shade, and due to its small stature, it is useful in the smallest yards.
Cornus sanguinea, also called common dogwood or red dogwood, is a member of the Dogwood family (Cornaceae Bercht. & J. Presl). This beautiful plant is native to temperate parts of Europe, Turkey, the Caucasus, and Western Asia. It can be found as far east as the Caspian Sea. With it...
Anthracnose Tree FungusAnthracnose is a fungal disease that occurs in Utah on ash, dogwood, maple, oak, and sycamore trees. The fungus causes brown and tan lesions on leaves—usually along the main veins. As the disease worsens, the lesions grow to take up large portions of the leaves....
As its name implies, the Dogwood Twig borerimpacts dogwood. It also eats blueberries and a wide range of decorative tree leaves. 35. Yerba Santa Beetle Yerba Santa Beetle. Image by Erin Lalime viainaturalist Common in California, the Yerba Sante beetle (Trirhabda eriodictyonis) is a major ...
Blooming flowers of dogwood tree Image Credit:fstop123/iStock/Getty Images Trees can be tricky in climates where night temperatures often don't cool below 75 degrees, because many woody plants need a cool-weather dormancy period. Trees common to Louisiana landscapes include dogwoods (Cornus spp....
hickory tree serviceberry dogwood maples (some) Anthocyanins (reds) Examples: sugar maple red maple sumac Biology and chemistry So, now that we have determined the conditions that bring about the degradation of chlorophyll, the question becomes why must the leaves change color and fall to the...