Powdery White Spots?

Mr Cannabis Sativa

Mr Cannabis Sativa

Active Member
The past few days i have noticed these white spots developing on my plants, ive had people tell me this is "powdery mildew."

i have also had a few people tell me that to solve this problem i can spray a mixture of milk and water on to the plants.

has anyone ever tried this before, has it been successful?

how much milk and water do i mix together?

are there any side effects i should be looking out for?

i am growing outdoor, and have also been spraying a combination of soap and water on the plants to help keep the bugs away, i have been using this method for a while now, and it seems to work, this is the first time i have seen something like this happen.

so what do i do? i am fully organic, and do not wish to use anything chemical, or harmful. friends of mine are telling me that milk and water is the best way to go, what is your perspective about the situation?
 
Mr Cannabis Sativa

Mr Cannabis Sativa

Active Member
i am unable to post photos at this time, i will try later. i have been having difficulties with my camera, and am unable to afford a new one at the moment,.
 
harryhood

harryhood

Active Member
Sounds like mildew which is a mold. They have shit to get rid of this at garden stores. Never heard of milk, but it's worth a try, as far as I know milk has no harmful effects on plants (I've actually heard of people using a dilution of milk to water with for Nitrogen, calcium, and Potassium) I've also heard that diluted baking soda (a couple tablespoons/gallon) can fight the mold, wouldn't do too much though because this can affect ph and it has sodium in it which is bad for plants but a small dose to fight the mildew should be fine. It spreads, so separate the contaminated ones!
 
harryhood

harryhood

Active Member
Oh and if you try either natural remedy, make sure to spray the tops and bottoms of the leaves. Good luck!
 
G

gobskiii

Well-Known Member
Mr Cannabis Sativa said:
The past few days i have noticed these white spots developing on my plants, ive had people tell me this is "powdery mildew."

i have also had a few people tell me that to solve this problem i can spray a mixture of milk and water on to the plants.

has anyone ever tried this before, has it been successful?

how much milk and water do i mix together?

are there any side effects i should be looking out for?

i am growing outdoor, and have also been spraying a combination of soap and water on the plants to help keep the bugs away, i have been using this method for a while now, and it seems to work, this is the first time i have seen something like this happen.

so what do i do? i am fully organic, and do not wish to use anything chemical, or harmful. friends of mine are telling me that milk and water is the best way to go, what is your perspective about the situation?
Click to expand...
does it wipe right off? if so, then yes it is mildew...
 
jamiesname

jamiesname

Well-Known Member
It's not just milk that you need to spray. It's buttermilk. Buttermilk contains an anti fungal bacteria. Personally I have never used it, but I read about a lot of people using it on the old overgrow forums years back. They swore up and down it worked.

Scrape, or pull off most of the affected area, then spray the remainder with buttermilk. Physically removing as much as possible will increase the success rate.


Good luck!
 
jdmcwestevo

jdmcwestevo

Well-Known Member
personally if its on fan leaves i just cut the fuckers off lol but only happened a few times with some OG strain that was susceptible to PM and come plants i had chillin in my bathroom for a few days lol
 
M

marcu5

Active Member
a few tips that have helped me:

- smaller fans that strictly focus on the lower portion of my tray/pots/stems
- lowering the humidity, more air flow, small dehumidifier, slightly hotter temps with lights on; 78-80 degrees. 60-70 with lights off.
- constant foliage spray with sm90, b52, and a specific brand called "safer grow mildew cure"

http://greenleafsupplies.com/index.php?main_page=product_info&products_id=629

lastly, i cut most of my bottom stocks off. (keep them sprayed with sm90 and mildew cure!) i've come to notice the mold begins with algae at the base, then crawls it's way up from the bottom.
 
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