1 Ashland was ranked the top private college for teacher education in the state of Ohio by Online Education Database in 2012. 2  Educate to Career ranked Ashland a Top Best Value College in 2014.  U.S. News and World Report listed Ashland among the top 200 national colleges and universities in 2012 and 2013.
Autumn Foliage Color. The Process of Leaf Color Change. Leaves change color during the autumn because the amounts of pigments change as the leaves prepare to fall from the trees. All leaves gradually lose chlorophyll during the growing season, and this loss accelerates before leaf fall.
If your tree's leaves turn yellow before itâs time for seasonal color change, chlorosis may be the culprit. Chlorotic leaves lack sufficient amounts of chlorophyll, which is what gives them their green color. One method of correcting the problem is to inject iron chelate directly into trees, much like a botanical booster shot. Iron is an essential element for healthy plant growth and development because it helps form chlorophyll and influences plant metabolism and respiration.