Q.I have a pieris forest flame that all of the leaves have dropped off of, and the stems are browning and seem to be dying off. There are 3
new shoots started from low down. The plant is in ericasias soil and I have a food from the local nursery ? Can anyone help ?

Certified GKH Gardening Expert
If this is newly planted, like within this week, then it could be many things. It could be heat related, or overwatering trying to compensate for heat. It appears most like a fungal infection.
You will have to treat with a fungicide. This article will help: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
They are, also, intolerant of full sun. They need partial shade, to full shade in order to flourish.
This article will help you with the care of these shrubs: https://www.gardeningknowhow.com/ornamental/shrubs/japanese-andromeda/grow-japanese-andromeda.htm