Sooby, thank you so much for the valuable info. I did put a pre-emergent on my lawn in late Feb. as well as the post emergent which was put on in. April ; however, the pre was a granual put on with a spreader. I have since thrown the bag away, so I'm not certain what the active ingredients were. I will try to figure it out and post if I can.
Thanks for the info regarding the snails. I sort of sprayed the Bayer on the fly hoping it would at least repel the snails. What would you suggest using to keep them away? I have a lot of them, and I've noticed them eating away at the new growth on my hydrangeas as well as my violas and mums. My wife thinks the snail are cute, so maybe something that might deter them from eating specific plants would be best. lol
I'm going to take your advice and leave the hydrangea alone and hope for the best (so difficult for me to do).
I am posting a pic of the 4 hydrangeas together so you can see how the one isn't doing as well as the others. I thought the pic might be beneficial. Please let me know if it sheds any light on the subject. Again, thank you so much for your time and for your advice.