Spray with a copper fungicide and remove as many diseases leaves as possible. Don't spray with Neem again because that could very well be the culprit in this heat. I get that sometimes after spraying with different things and it takes several days for all of it to appear. Watch new growth and see if it is on those new leaves if it isn't it may well be spray damage. I will not use Neem when it is hitting over 90 because of damage it has caused me in the past when I used it this time of the year in a failed attempt at stopping spider mites with it. The bleach spray can cause some leaf burn if it was sprayed to the point of runoff or was a bit too strong.
It would really help to see some photos though.
Bill
|