I am growing and areoponics today I looked at my leaves on my white widow and there’s some white stuff on the edges of the leaf. As you can tell I had a problem with a calcium magnesium which I solved that but now I have this new mystery. Please help willing to answer any questions that will help to conclude this deficiency or whatever it may be.
2 Likes
Looks like maybe minerals from foliage spray or a humidifier like water spots on your car
1 Like
Oh wow yeah, if you have one of those cool mist humidifiers they totally do that though you’d probably see it elsewhere as well
We kept finding a white residue especially on black stuff like the microwave and discovered it was from the humidifier and not using distilled water in it
3 Likes
I believe that’s what it is because when you zoom in you can see the outlined shapes of water droplets 
before I zoomed I went to the darkside and thought wpm (white powder mildew)
1 Like
Oh no don’t go to the dark side lol, really tho that was my first thought as well. Thank you
1 Like