A white powdery substance has developed on the tips of our rosemary plant. moving down the branch. I trimmed off but it came back.

Question

this plant was transitioned from our (Wisconsin) garden this fall into the house so we can use in cooking over the winter.

• 

Answer 1

Yes, this will be powdery mildew. There are many ways to get rid of this. It is one of the easier diseases to conquer. This article will help: https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm