Oleanders in Leander ~ Noob Q

Hello,

Hope you are all doing well. I have some 4 year old Oleanders that are
just starting to get sick. I'm a noob at gardening so could someone
please help me out and tell me whazup, TIA. I've uploaded some JPGs
that are 50k in size each.

agp
041205

http://www.onr.com/user/antaras/Olea...1_OLEANDER.jpg
http://www.onr.com/user/antaras/Olea...2_OLEANDER.jpg
http://www.onr.com/user/antaras/Olea...3_OLEANDER.jpg
http://www.onr.com/user/antaras/Olea...4_OLEANDER.jpg
http://www.onr.com/user/antaras/Olea...5_OLEANDER.jpg
http://www.onr.com/user/antaras/Olea...6_OLEANDER.jpg
http://www.onr.com/user/antaras/Olea...7_OLEANDER.jpg