White powder on leaves

T

Toshis

Member

• Jul 28, 2020

• #1

Hi. that white powder started to appear on the leaves. what could it be? thank you!

 

Merkn4aSquirtn

Well-Known Member

• Jul 28, 2020

• #2

Wpm
Humidity high?
Im no expert in mold, idk what to tell you
Someone should chime in or just search "wpm on cannabis plants"
Gl

 

doug mirabelli

Well-Known Member

• Jul 28, 2020

• #3

I’m dealing with this right now in my outdoor grow, although yours looks different. I just bought some potassium bicarbonate on amazon coming tomorrow. I read a foliar spray recipe online for an ounce of potassium bicarbonate in a gallon of water together along with 1.5 cups of skim milk.

 

Last edited: Jul 28, 2020

Kalebaiden

Well-Known Member

• Jul 28, 2020

• #4

Possibly this? (Click this link)

 

T

Toshis

Member

• Jul 28, 2020

• #5

Thank you guys. My humidity is a little bit high. Looks like white powdery mildew. I will try some method to stop.