It is not something I would ever advocate. Peach leaf curl is a fungal disease and bleach is not a fungicide. Moreover, bleach has an extremely high pH (11) and is toxic to all manner of other organisms, including pollinators, as well as being very damaging to plant foliage.

Get a proper fungicide registered for peach leaf curl and apply as directed in fall after leaf drop and again at bud swell in spring and again in 2 week intervals while conditions that encourage the disease persist. Do not spray anything when the tree is in flower.

Ok,, I read about some people advocating an epsom salt solution. do you have any opinions on that?

As Gardengal said, "Get a proper fungicide registered for peach leaf curl."

Alternatively you can reduce infection by protecting the trees from rain in late winter and early spring.

How big are they?

I am looking for more natural remedies and have also read about baking soda, vinegar, oregano and neem oil

Epsom salts won't do bupkus for peach leaf curl!! That's like taking an antacid for a broken leg. 😆There is nothing in ES that could possibly be construed as an effective fungicide. Neem oil or other horticultural oils are considered "natural" or organic and may have a limited effectiveness but anything else - other than a proper registered fungicide - is just a waste of time and money.

If you are unwilling to apply a proper treatment to address this disease, then you should look into replacing your peach with a leaf curl resistant variety. Or just stop growing fruit trees, most of which will have a plethora of insect and disease problems.

Sorry, but that's just life. You have to have the right tools to do the job.

Covering the trees from rain is natural and it is effective. You'd have to construct a plastic covered frame for each tree. Stuff from the kitchen isn't going to help. There are no remedies for plc, only preventatives.