How to use Neem oil to prevent Powdery Mildew

Jackriddle21

Jackriddle21

Well-Known Member
Gentleman, Ladies, Red Eye Country Folks, I need some advice. I would like to use neem oil to prevent powdery mildew. What is the best way to do this? And when should I start to apply neem to the plant? Right now I have a bunch of clones and some are one week old and others are two weeks old. Are they too young? Also, I have a few seedlings that are about a month old. Does neem work wonders for plants in veg?
 
Lordhooha

Lordhooha

Well-Known Member
Jackriddle21 said:
Gentleman, Ladies, Red Eye Country Folks, I need some advice. I would like to use neem oil to prevent powdery mildew. What is the best way to do this? And when should I start to apply neem to the plant? Right now I have a bunch of clones and some are one week old and others are two weeks old. Are they too young? Also, I have a few seedlings that are about a month old. Does neem work wonders for plants in veg?
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The best way to prevent powdery mildew is with ample air flow.
 
Jackriddle21

Jackriddle21

Well-Known Member
I have a carbon filter, amazing intake fan, oscillating fans and great air movement. However, I heard neem is a good oil to use for preventing diseases and pests during veg.
 
Lordhooha

Lordhooha

Well-Known Member
Jackriddle21 said:
I have a carbon filter, amazing intake fan, oscillating fans and great air movement. However, I heard neem is a good oil to use for preventing diseases and pests during veg.
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Are you pulling air out of the tent or pushing it in? Also make sure the fan is good for the sized space it’s in. As for bugs and diseases I’ve never had any. I simply clean. My rooms are stay super clean like the rest of my house. Diseases usually stem from bad genetics, or something you introduced from outside of the grow area.
 
NrthrnMichigan

NrthrnMichigan

Well-Known Member
Add a small squirt of dawn dishwash soap to the proper amount of warm water, shake well then add the proper amount of neem oil and shake like hell. Neem oil is a very stinky, messy oily oil. It is very hard to mix with anything. Make sure to use a spray bottle that you will use for neem only because it's a b_tch to clean. Good luck!

ps. The Dawn has a dual purpose. 1, acts as a wetting agent. 2, helps break down the neem oil to make easier to mix with the water.
 
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Jackriddle21

Jackriddle21

Well-Known Member
I am pulling air out of the tent. I use my inline fan like a vacuum and create the sucking point at the carbon filter located at the top of the tent, then I run the air from the carbon filter and through the air-cooled light and exhaust the air out of my window. I have a few rooms and just started in 2018. I have a 3x3x6 tent, a 7 1/2 x 7 1/2 room, and a 6x6 room. I bleached the shit out of them and just got some really nice Girl Scout Cookie cuts and Ghost OG cuts from BARC in West Hollywood so I really want find a healthy mother. The plants are clean and legit and so are my rooms. Last run in March during the 6 week of flower we had rains for two weeks and I got a little PM. I used H202 and spot sprayed and harvested it before it spread but now I never wanna deal with it again and want to prevent lol.
 
Lordhooha

Lordhooha

Well-Known Member
Jackriddle21 said:
I am pulling air out of the tent. I use my inline fan like a vacuum and create the sucking point at the carbon filter located at the top of the tent, then I run the air from the carbon filter and through the air-cooled light and exhaust the air out of my window. I have a few rooms and just started in 2018. I have a 3x3x6 tent, a 7 1/2 x 7 1/2 room, and a 6x6 room. I bleached the shit out of them and just got some really nice Girl Scout Cookie cuts and Ghost OG cuts from BARC in West Hollywood so I really want find a healthy mother. The plants are clean and legit and so are my rooms. Last run in March during the 6 week of flower we had rains for two weeks and I got a little PM. I used H202 and spot sprayed and harvested it before it spread but now I never wanna deal with it again and want to prevent lol.
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Were they outside? If the rains were an issue bringing in humidity that means you need a dehumidifier something bad.
 
Jackriddle21

Jackriddle21

Well-Known Member
Lordhooha said:
Were they outside? If the rains were an issue bringing in humidity that means you need a dehumidifier something bad.
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No, indoors, but once it was shiny outside after the storm i ended up finishing them outdoors. I did have my window open during the storms to vent out the tent though
 
F

Fubard

Well-Known Member
Jackriddle21 said:
I have a carbon filter, amazing intake fan, oscillating fans and great air movement. However, I heard neem is a good oil to use for preventing diseases and pests during veg.
Click to expand...
You may think you have a great deal of air movement, but it is possible to have "dead" air spots thanks to where the different airflows merge, they can create areas where they cancel each other out which could lead to mold forming.

Easiest way to check is wet the tip of your finger, repeatedly as it will dry off, and see if you have any bits where there's no air movement, just the same way as you check wind direction outside.

If you find any dead air spots, adjust fan positions as necessary
 
Oregon Grower

Oregon Grower

Well-Known Member
Outdoors just keep a close eye on surrounding area I’m in Oregon and if I look hard enough usually can find pm on other plants in my yard or close and eradicate them never had pm on my plants though.
 
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