White spots on my rose bush leaves, what are they?

It looks like drops of white liquid was splashed on and dried. Not on all the leaves and not on any other of my plants. My rose bush is in a pot on my patio with a southeastern exposure. I live in Colorado. Wow, that was a lot of info, I hope it helps with answers!
White spots on my rose bush leaves, what are they?
I would mix a mild solution of dish detergent and water and spray it on your Rose Bush leaves.

I've also learned that dried banana peels are one of Roses best friends. I dry them in my microwave and put it around the Roses base on the soil. I have been doing that since last Fall (1x a month) and I have Beautiful Roses this year.

Good Luck !!
Reply:I've had that before. It's probably mildew.

You can buy a spray to get rid of that.

Be careful of spraying too much, then the leaves might develop a yellow-stain.
Reply:To keep bugs and things off of rose bushes take you dish pan water when you are done with dishes and dump it over your roses. My Mother did this for years and her roses were the pride of the neighborhood. Something in the dish liquid deters bugs and different fungus etc which roses can get.

Give this a try, I think you'll be plesently suprised.

I don't know if it will heal already dammaged leaves, but will stop any further exposure.
Reply:white flys i bet
roots rain