shriveled leaves

I have this problem I believe may be due to fungus. The leaves started off with little rusty looking stains on the lower branches of one plant, I removed as many as possible but it keeps spreading to the other plants one by one. At first it was just ugly, but then the leaves started feeling...

This journal is the story of my attempt to rescue and clone two unknown genetics, young plants that I found growing outdoors obviously receiving little to no care. What we know so far: Age: 2-3wks from seed Stage: Veg Sex: Female Type: Predominantly Sativa or 50/50 Genetics: Unknown (poss...