how can i eliminate powdery mildew in my grow?

[thatreedocta]

I know lowering humidity helps but i have a drip system with a flood table that pretty much constantly wet and an open 10 gallon reservoir underneath so my humidity stays around 45-60% now so I dont know what i can do to lower it. I have 3 fans in the room and a 440 cfm exhaust. Another problem might be i constantly have an inline fan (connected to ducting to the inside of the tent) bringing in fresh air from outside because i dont think the negative intake is enough. I think it might be possible that the PM spores are being drawn in from outside. what are some suggestions?

Also, is it safe to live in the same room as your grow when you have a powdery mildew infestation?

 

[PeyoteReligion]

Your name is "thetreedocta" and you don't even know how to treat pm?! Lol irony is hilarious.

Serenade

GreenCure

Sulfur Burning

Mighty Wash

Google is your friend...

 

[thatreedocta]

Your name is "thetreedocta" and you don't even know how to treat pm?! Lol irony is hilarious.

Serenade

GreenCure

Sulfur Burning

Mighty Wash

Google is your friend...

assuming makes an ass out of u m e. I sprayed with h2o2/water already but im looking for suggestions on how people think i can keep the PM from coming back (ie how to reduce humidity in my tent with drip system and flood table thats constantly wet, etc.)

 

[Bigby]

Your name is "thetreedocta" and you don't even know how to treat pm?! Lol irony is hilarious.

He said eliminate, not treat/cure. Does your doctor eliminate people then? @Harold Shipman

Smart arse people failing is one of life's major causes of humour. LOL

 

[gfaemrvk]

Smart arse people failing is one of life's major causes of humour

 

[Ninjabowler]

I know lowering humidity helps but i have a drip system with a flood table that pretty much constantly wet and an open 10 gallon reservoir underneath so my humidity stays around 45-60% now so I dont know what i can do to lower it. I have 3 fans in the room and a 440 cfm exhaust. Another problem might be i constantly have an inline fan (connected to ducting to the inside of the tent) bringing in fresh air from outside because i dont think the negative intake is enough. I think it might be possible that the PM spores are being drawn in from outside. what are some suggestions?

Also, is it safe to live in the same room as your grow when you have a powdery mildew infestation?

I eliminated mine with baking soda and water at one teaspoon per spray bottle. I applied it every two days and pulled off the affected leaves in veg. Also got another fan to move the leaves more, make sure the fans run at night too

 

[thatreedocta]

im thinking about just letting the powdery mildew do its thing and then following a procedure jorge cervantes shows on youtube where you basically bath the freshly harvested plants in a h2o2/water bath. What do you guys think? Is a lot of PM harmful to the plant? heres the jorge cervantes link:

http://www.youtube.com/watch?v=S7jE7qzfgQs

 

[Ninjabowler]

Yes pm is fatal to your plant. All the leaves will dry and get crispy. It will die, be afraid, be very afraid. Baking soda took care of mine like i said and it hasnt come back either. It cost me one cent

 

[PeyoteReligion]

He said eliminate, not treat/cure. Does your doctor eliminate people then? @Harold Shipman

Smart arse people failing is one of life's major causes of humour. LOL

I don't see where I failed, you dimwit. In my post I reccomended a sulfur burn. PM is systemic disease and needs to be treated as such. It's plant herpes.

The irony still stands, ops name is thetreedocta and asking for advice that any doctor of any plant would already know. But apparently the humor in the irony sailed over your heads. I did not mean to hurt any butts, but to simply point out the blatant irony.

 

[PeyoteReligion]

Yes pm is fatal to your plant. All the leaves will dry and get crispy. It will die, be afraid, be very afraid. Baking soda took care of mine like i said and it hasnt come back either. It cost me one cent

Lucky you. Last time I had it my canopy was too dense to get it to stop propagating. I could only keep it at bay and even then had to trash all the smaller nugs.

 

[smokajoe]

Lucky you. Last time I had it my canopy was too dense to get it to stop propagating. I could only keep it at bay and even then had to trash all the smaller nugs.

What about a h2o2 bath?

 

[PurpleBuz]

- Cover your reservoir
- Increase your drip rate or convert to flood system so the flood table can dry up between waterings
- Get a dehumidifer, keep your humidity under 50.
- put air filters that will trap spores on all your fresh air intakes.
- if possible put air filters on anything moving air, don't spread spores.
- remove infected vegetation, they are loaded with spores.


A wild batch of PM growing indoors with flying spores is NOT good for anyone. While PM won't grow in your lungs, they certainly will irritate and cause allergic responses.
Long term exposure is as bad as any mold spores on your lungs.


Spray, drench, mist, or apply in waterings regularly 3 - 7 day cycles, until there is no PM for 2 weeks.

If you don't control it you won't have anything worth harvesting

 

[PurpleBuz]

PM is NOT systemic. Hard to get rid of, and it does extend into the plant walls, but its not systemic.

 

[Ninjabowler]

- Cover your reservoir
- Increase your drip rate or convert to flood system so the flood table can dry up between waterings
- Get a dehumidifer, keep your humidity under 50.
- put air filters that will trap spores on all your fresh air intakes.
- if possible put air filters on anything moving air, don't spread spores.
- remove infected vegetation, they are loaded with spores.


A wild batch of PM growing indoors with flying spores is NOT good for anyone. While PM won't grow in your lungs, they certainly will irritate and cause allergic responses.
Long term exposure is as bad as any mold spores on your lungs.


Spray, drench, mist, or apply in waterings regularly 3 - 7 day cycles, until there is no PM for 2 weeks.

If you don't control it you won't have anything worth harvesting

Plus rep...solid + rep

 

[thatreedocta]

I don't see where I failed, you dimwit. In my post I reccomended a sulfur burn. PM is systemic disease and needs to be treated as such. It's plant herpes.

The irony still stands, ops name is thetreedocta and asking for advice that any doctor of any plant would already know. But apparently the humor in the irony sailed over your heads. I did not mean to hurt any butts, but to simply point out the blatant irony.

damn for a stoner you really need to relax. People are just pointing out that your answer had more smart ass than necessary but thanks for the input. How do you do a sulfur burn? And by the way, its just a name. Im in med school so my email and everything else is thadocta (been that since i was like 12) so i just added "tree" to it. Im not saying im a weed guru(my plants are pretty damn chronic though).

 

[Ninjabowler]

You need to purchase a sulpher burner. Hydro stores got em

 

[thatreedocta]

- Cover your reservoir
- Increase your drip rate or convert to flood system so the flood table can dry up between waterings
- Get a dehumidifer, keep your humidity under 50.
- put air filters that will trap spores on all your fresh air intakes.
- if possible put air filters on anything moving air, don't spread spores.
- remove infected vegetation, they are loaded with spores.


A wild batch of PM growing indoors with flying spores is NOT good for anyone. While PM won't grow in your lungs, they certainly will irritate and cause allergic responses.
Long term exposure is as bad as any mold spores on your lungs.


Spray, drench, mist, or apply in waterings regularly 3 - 7 day cycles, until there is no PM for 2 weeks.

If you don't control it you won't have anything worth harvesting

Very good advice. can you give me a link to the air filter for the intake so i know what it looks like? Thanks. And do I have to remove all infected leaves? Id rather just spray because removing them all might kill the plants.

 

[ounevinsmoke]

your best bet is a cheap dehumidifier in the tent. I had the same problem before and considered a sulfur burner but instead got an ozone emitter which worked fine but then I started reading about the effects of ozone and got paranoid. Once I put a dehumidifier in my room I never saw the mildew again. If you take away the conditions the spores germinate than removing them completely is not even necessary even though you still want to clean your room thoroughly. Also I did end up getting strains that were resistant to those molds and mildews which is really what you need to do.

 

[jondamon]

If you add a dehumidifier to lower your relative humidity.

If you have a powered intake then you can get yourself a HEPA filter for it that will trap any mold spoures.


Neem also works against powdery mildew.

Increase fan oscillations in and around the plants.

Between leaves are where most moulds propagate from due to leaf surfaces touching creating micro-climates.



J

 

[Ninjabowler]

Very good advice. can you give me a link to the air filter for the intake so i know what it looks like? Thanks. And do I have to remove all infected leaves? Id rather just spray because removing them all might kill the plants.

Yes, remove all affected leaves. You will not kill your plant, not even close. If your still in veg even if you rip off almost all the leaves they will grow back. Some say bigger than ever. This plant was stripped because of mite damage. Its now bigger than all its sisters. Get that PM out of there. All infected leaves should go and then all leaves that you see after that as well.