Judy, I'm pretty sure it's leaf streak. I also found tiny black spots, I read that is caused by the fungus.
But I can't buy the specific fungicide it requires a sort of license and I'm not a pro, I'm just a house gardener.
I keep on removing infected leaves, they are so many. I don't know how to control it. I'm not watering and it's not raining so I hope it will help against spreading this fungus.
