As days get shorter and nights get cooler, changes take place among the trees. The shorter days allow for a breakdown of chlorophyll in the leaves, which reveals the beautiful fall colors we want to see! As nights get cooler another process takes place, the trees produce an abscission layer which starts to cut the leaves off from the trees.
October is a big month for fall color and the weather in the spring and summer can impact what goes on each fall. Drought conditions can stress trees and very warm weather can also impact fall color. Stevenson explains what he thinks will happen to the fall color change across the state because of this past summer.