Q: I have a peach tree that is about 4 years old and it has been producing some really good peaches. Last year, it developed peach leaf curl in the spring. That summer, it didn’t produce much fruit, ...

Q: After losing a prized peach tree to curl disease, I recently ordered a ‘Frost’ peach because I heard it is highly resistant to the disease. Are there other peach trees that are also resistant? A: ...

Q: I read with great interest your May column on using Bordeaux mix to treat leaf curl on peach trees. Two questions: 1. Where can one purchase Bordeaux mix locally, especially in San Francisco? 2.

Q: Is this gall on my peaches at home? If so, what’s the remedy? If not? What is it and how do it treat? • Blaine from Columbiana A: I received some photos of curled up peach leaves on a tree. They ...

Q: Last spring when my peach tree leafed out, the leaves were all funny shaped. Can you tell me what the problem is and how to prevent it from happening again? A: Based upon the symptoms described, ...

Q: My nectarine tree has red blisters all over its leaves, and many of the leaves are very deformed and twisted. Almost all the leaves on the tree have this problem. What is wrong with my tree? Will ...

If you have peach or nectarine trees, winter is the time to spray them to prevent peach leaf curl. Peach leaf curl is a fungal disease that attacks peaches and nectarines. It appears in spring, ...