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.
Babies of African and Asian descent are usually born with brown eyes that stay brown. Caucasian babies are often born with steel gray or dark blue eyes; they may stay gray or blue or turn green, hazel, or brown by the time they're 9 months old. That's because a child's irises (the colored part of the eye) may gain more pigment in the months after she's born, but they won't get lighter or more blue. (Green, hazel, and brown eyes actually have more pigment than grey or blue eyes, even if they appear lighter in color.) AAP. 2012. Newborn eye color.