leaf yellowing

Fall Foliage I

  We are entering that world-class time of the year for Ohio and the Eastern United States – the time of fall foliage color. Nevertheless, we are receiving numerous calls about what is wrong with their trees, especially honeylocusts; yellowing leaves and all.

  Nothing out of the ordinary – it is simply fall foliage time. Despite our warm temperatures and with it seeming like it is still summer - for trees - fall is proceeding as usual. There are factors of temperature and moisture that affect fall coloration intensity, but the key ingredient for fall color starts in the summer at...

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Authors
Jim Chatfield

Liriodendron Leaf Yellowing

During the hot, dry conditions of summer, numerous trees will shed some of their leaves. A good example is tuliptree (Liriodendron tulipifera). I (think) I remember flying in from the Pacific Northwest in August one dry year and as we got close to landing, was able to pick out the tuliptrees due to their earlier than fall color yellow leaves interspersed on the tree among the more prevalent green.  

Today, I was walking in Wooster in northeast Ohio, and the ground was littered with fallen leaves of tuliptree.  It even seemed like some of them were sweating in the 90+...

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Authors
Jim Chatfield