Milk on the garden

I had some curdled light (fat-free) milk in the fridge - couldn't use it for my morning coffee, so chucked it on the rose - noticing the second flower today. Apparently milk has good antibacterial properties for gardens, and roses in particular, re-black spot.

Two helpful sites:

https://www.sgaonline.org.au/black-spot-of-rose/

https://balconygardenweb.com/milk-uses-in-the-garden/

It's also good for tomatoes, preventing blossom end rot. It enriches soil health, and keeps aphids away. Who knew?!