Garden Pests and Diseases: Phlox stem drying out., 1 by naturesguy8

naturesguy8 wrote:
Hello, I have a tall hybrid phlox (white) in my garden. I have had this for the past 4 years. This year when the phlox was ready to bloom, few stems started to dry out and die. I checked whether there were any bugs or whether the leaves turned any color or the leaves had any holes in them. I did not find anything wrong with the plant. I had to cut these stems out. The rest of the plant looks fine and is now blooming well. Today I noticed one more stem drying out. I do fertilize my plant once every 3 weeks and they do get watered by the dripping system.
Can anyone please tell me what is happening with my phlox? Your help will be greatly appreciated.
Thanks
Gopal