Hi Guys, New to GrassCity and looking for some help. Question: Does anyone know what the white spot is? Background: I've grown this strain for years and this is the first time the spots have appeared. Bud size is smaller than "normal". This is 1 of 6 plants in my room and it is the only one showing the spots. Pictures: Pic 1: Spot on leaf Pic 2: Spot on Leaf @ 80x magnification Pic 3: Spot on Leaf @ 80x magnification Pic 4: Underside of buds without spots At first glance with the naked eye, the Spot looked like mold but I was unable to locate any mold with a similar appearance. Thanks in advance! Sent from my iPhone using Grasscity Forum
I had 4 plants outdoor this summer, and only 1 plant was affected. Sent from my iPhone using Grasscity Forum
Believe it or not, it's a calmag deficiency. You can fix it with a lil Epsom salt. wait, what's your medium ?
Wow, I've actually never seen anything like that before. Definitely not a calcium issue. So if your humidity is low and it's not mold, what are the chances it could be a type of fungus?
Yes, it's powdery mildew. Mold and mildew are two completely different things. # 1 is gray mold, causes bud rot. #2 and #3 are powdery mildew. It lives on top of the leaves. Can thrive in low humidity, and normally won't kill your plant. Sent from my iPhone using Grasscity Forum