Preventative spray schedule

[ARgardener]

Howdy folks,

I live in a high humidity and high temperature area with pretty high disease pressure. That said, Im also very frugal and Im not into using chemically-derived sprays.

I am, however, interested in using milk, aspirin, and braking soda sprays as a preventative arsenal (obviously all these wouldn't be mixed in one spray).
I've read from many sources to spray baking soda once a week; so I've got that part pinned down. Now I just need to know how often to spray milk and/or aspirin?

[brownrexx]

I use a baking soda spray on my squash as a powdery mildew preventative in late summer.

I don't know if you are using it for the same thing on your tomatoes but isn't milk just an alternative for the same thing? If so, you really wouldn't need both of them would you?

[ARgardener]

Originally Posted by brownrexx

I use a baking soda spray on my squash as a powdery mildew preventative in late summer.

I don't know if you are using it for the same thing on your tomatoes but isn't milk just an alternative for the same thing? If so, you really wouldn't need both of them would you?

Perhaps they do overlap, but I'd rather have a variety of sprays than just one. I feel like a spectrum is important.