Q.Damaged ponytail – one of three
I hope I can describe the situation clearly…I have a bonsai ponytail tree that has three ponytails growing at the top. One of the ponytails got damaged and died, leaving a stump like appearance. Is it possible for a new ponytail to grow from that stump? My tree looks so sad and unbalanced now. I apologize for the quality of the picture.
Shawna

I'm sorry we did not receive your image.
It may grow another pup or stem, but if the stem died from a fungus or disease this could be an issue.
I would cut the stem down with a clean sharp knife or scissors.
The open stem end can increase the chances of disease or insects effecting the plant.
You can use Neem Oil on the plant as it does work as insecticide and a fungicide.
Here are a few links with more information.
https://www.gardeningknowhow.com/houseplants/ponytail-palm/pruning-ponytail-palms.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm