how do i deal with powdery cover on red hot pokers – the stems were covered with it

Question

I have tried to wipe it off with my hand

Answer 1

It sounds like powdery mildew. This can be easily dealt with. This article will help: https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm