PM - Sulfur Vap

[headimonster]

Okay - so im almost 4 weeks in -
Temps are 62-78
Humidity - 33%-65%
medium sized room

and we got a PM problem on the Hindus - got a sulfur vap was wondering if anyone could tell me a good dose (hourly? when to vent? if at all during dark?)

thanks

 

[ballabuds]

for treatment, burn for 3-4 hrs first time and then do it again 3days later(lights off)...That should keep it under control till harvest.

I usually do it once a week for 1hr during veg and for the first 3 weeks of flower for preventative...It also keeps all your pests out of the room (bonus).

I think your humidity might be getting a little to high. keep fans on them all the time and venting while lights are on...hope this helps

 

[PharmaCan]

Here's a real good thread about powdery mildew:

http://www.icmag.com/ic/showthread.php?t=43220

How big is a medium size room? The sulfur vapor can damage your plants if you overdo it, so you should start out conservatively time wise.

PC

 

[headimonster]

pharmacan about 400sqft give or take a few feet - -and you guys do kno i am almost 4 weeks into flower - - -just to let you know - and should i vent before lights go back on??

 

[ballabuds]

My room is 15x15 and I have had no problems with the time...I fill the cup about half way...if you sulfer right when the lights go off, you don't need to worry about venting before the light come back on.

It might be wise as PharmaCan said and go a little more conservative at first. Different strains might act differently, I have been running the same two for awhile with no ill effects.

Though I don't do it, I have talked to a lot of peeps that use it 3 or 4 times a week until the last couple of weeks before harvest. I know from my experience that there is no taste at all with at least 4-5 weeks stoppage.

I place the burner about 2-3 feet above the height of the girls in the middle of the room.

If you are going to do it, I would suggest do it sooner rather than later....Good luck

 

[headimonster]

sweet guys thanks a bunch - so once lights go back on and the blower starts to exhaust itll be fine - or should i hit the fans and blower on bout an hour b4 lights go back on?

 

[hardseed]

only with lights off
i run once a week for 2-3 hours and stop when you have 3 weeks to go