05/22/2026
Have you ever noticed the gold shimmer on Liriodendron tulipifera?! Tulip poplar leaves naturally have a waxy surface, and under certain angles, humidity, and heat, especially on fresh new leaves, can have a golden shimmer.
The gold residue is more of a waxy cuticle (surface coating) effect than a fungal pathogen.
However, tulip poplars in East Tennessee are highly susceptible to environmental stress, Verticillium wilt, and powdery mildew for example. Our region's intense midsummer heat and drought often cause premature yellowing, leaf drop, and vulnerability to sap-sucking pests like aphids and scale insects. Just saying
BTW, Tulip Poplar is in the magnolia family (Magnoliaceae), which explains its beautiful flowers.
popular Knoxville family that look like a cat