Cercospora. Cercospora is the most common of the many diseases of a sweet gum tree, according to the Florida Department of Agriculture and Consumer Services. Cercospora is a fungal spot disease that produces dark brown, bordered, angular to circular spots 2 to 10 mm in diameter on both sides of leaves.rtist's Conk. Artist's conk (Ganoderma applanatum) is a fungal disease of a sweet gum tree that causes wood rot, according to the University of California IPM Online. Artist's conk infects trees by entering through wounds. White rot occurs in roots and trunks.
Vision and Age Infant Eyes Eye Development. Even in the womb babies can tell the difference between light and dark. And at birth, they see shapes by following the lines where light and dark meet. Yet, they are several weeks old before they can see their first primary color â red.
Baby blue is known as one of the pastel colors. With a hue code of 199, this color is a tone of azure. The first recorded use of baby blue as a color name in English was in 1892.he color defined as blue in the NCS or Natural Color System is an azure-like color shown at right (NCS 2060-B). The Natural Color System is a color system based on the four unique hues or psychological primary colors red, yellow, green, and blue. The NCS is based on the opponent process theory of vision.