A: Most likely caused from a calcium deficiency in your soil. You need to have a soil test done. You can also use calcium foliar sprays and water during dry periods.
A: Problem is powdery mildew. If you treat it with horticultural oil, it will get rid of it.
Previously Asked Questions & Answers
The Union County Extension Master Gardener Volunteers and the Horticulture Agent are happy to assist the community with their gardening questions.
To ask us a question, please click on this link:
"Ask Us Your Gardening Question"
Each question and answer is placed into its appropriate category.
This allows visitors to search previously asked questions by any of the listed categories below.
Union County, NC