Sandy's Plants, Disease and Insect ID Blog

Carya glabra – Pignut Hickory


quercus alba – White Oak

Hamamelis virginiana – Witchhazel

Heracleum lanatum – Cow Parsnip

Crab-Apple Tree with Cedar-Apple Rust

Prunus Subhirtells – Weeping Cherry

There was an insect on a leaf (shown in last photo), but I don’t believe it had anything to do with the holes.  The disease is called Shot Hole disease, caused by the bacterium Xanthomonas arboricola pv. pruni. according to

Salix alba ‘Tritis’ – Willow Tree