Lactobacillus is a beneficial bacteria and you can find instructions across youtube and the internet on how to make a Lactobacillus Spray for your garden.
It's great for organic farming to keep fungi off your plants after a few rainy days. The idea is very simple. You out-crowed the territory with beneficial
microbes and they will then defend the area. Lactobacillus is an aerotolerant anaerobe. It does not need oxigen to make energy but it survives in an oxigen environment. To suppress other species it's good to let lactobacillus grow in an anaerobic environment because then it will have an advantage over microbes that depend on air.
As a gardener you understand terrain theory immediately. If you remove all plants from a patch of your vegetable garden then your job will be un-done in weeks unless you plant something. You need to plant a cover crop or the actual vegetables that you want.
The human body, especially the skin works the same way. Lactobacillus is not just beneficial for plants it's also good for your skin. This Lactobacillus Spray
works great on itchy skin and scalp. It's a great skin-care product.
Here some links on how to make the probiotic Lactobacillus Spray:
Spray and concentrated LAB solution, you store this in the fridge
To make a new batch you don't need to start always with rice wash. You can add leftover old solution to fresh milk. I make this LAB solution once a month fresh and I don't add suggar to make it last longer.