Need help for Sulfur Burn about to happen, pics and video.

1st time grower with Powdery Mildew!!! plants started to grow quite densely and powdery mildew began, bought a dehumidifier which is set to %40 and an Ac that turns on at 77. I'm at 1.5 month veg,

i have been spot treating with an anti-fungal spray mixed with water... but that has not been keeping it under control.


I purchased a sulfur burner but I don't know the procedure. The instructions say "use in wet green house" "use when there is dew on the leaves" but everyone tells me that the leaves must be dry. I put the sulfur pellets into a grinder to form it into a less coarse medium. 10 plants in an 8x4 lights are on 9:30am to 3:30am, so sulfur burn for 5-6 am before lights and exhaust is okay?

So my questions are...

Wet leaves or Dry?

How long to burn for a 8x4 with ten plants?

How low or high do i need the cup to be from the heating element?

Should I purchase anything else to help with process?

The lower growth I trimmed to increase air flow. gross stuff!!


Picture of the setup.
I crowded the plants so that they would be directly under the burner.


Video of my situation..... i was quite high
[video=vimeo;19708974]http://vimeo.com/19708974[/video]

68 views no response?? any advice is useful

chop em down, clean everything and start over. if you got them from clone dont take clones from a mother that has pm. if you do take clones ask to see the mother to verify her health, i take a 30x loop and look for any sign of bugs or mold. look around the room to verify the conditions the mother is living in, chances are if you see an abundance of spray around the grow, they have an insect problem. as far as burning sulfur im pretty sure you need to turn off all fans and the leaves need to be moist to accept the sulfur, ive never done it. but with the mold problem as bad as it is in veg is only going to get worse in flowering. i know it sucks to have to start over but you will have pm on those plants if you flower them.

and uncrowd your plants. allow air to move freely between them in the future.

dart420 is right on with that advice, but i gotta say a sulfur burner is a bit over kill for such a small area. the instructions should tell you where to set the pan, otherwise contact the manufacturer. the one my buddy has in his green house has a notch where the pan clips in. i prefer using serenade to sulfur, but both stink pretty bad. what size space is that burner rated for?

looks like 1000 sq ft on the instructions. where does your room vent to? something to think about when using a sulfur burner or sprays. if you have pm and you grew from seed then your conditions in you room need to be addressed. from the look of your video id say you need to have better ventalation. you have good circulation in there, you say the humidity is at a constant 40% and your post doesnt say anything about low temp so if your in a cold garage then the culprit could be there too. big drops in temp with plants in the room = dew/moisture on leave in the dark and bam, prime breading ground for pm. and right now there is barely room for you to separate the plants and they are in veg....... there will be no room in there once they start to stretch. and since you topped em they are gonna grow outwards as well as up.

i am experienced with burning sulfur. it works wonders. when i use mine i have it come on every dark cycle for 15 - 30 mins with the fans ON. it's on a timer. i keep the dish around the halfway mark on the height from the coil. i just want a little "puff" of sulfur, not a huge thick cloud. it will take a week or 2 of daily use to kill off all your mildew. but it should work. do NOT overdo it. less is better when burning sulfur. if you overdo it you could kill your plants.

mildew needs a specific PH level to grow. the sulfur changes the PH level on the surface of the leaves and the mildew can't grow on it. all you need is a very fine dusting. if you can feel a grittiness on anything you are burning too much. i have literally licked my hoods to see if i could taste sulfur. if you taste sulfur you're burning it too heavy.

thnx man, so since you got those experience points,

dry is better than wet? or should I spray the with water before the burn?

also should I continue to use antifungal spray and water solution in between or leave it up to the sulfur on its own? baking soda and sulfur = death?

One more thing, after todays burn the powder turned from powder to a yellow looking hockey puck thing, can i reuse this until burns off
or should I refill every burn, every other burn?

this is my first grow, and thanks for the help

I know you need to grind up and use fresh sulfur each burn.

As for spraying for PM, STOP...... at least I would.... There is enough humidity in your grow area if you have PM. (Unless you want to spray milk.... 1 part whole Vit D 9 parts water.) I would not cut down my plants because of it. Cut off all of the lower growth on the plants and get the waste out of the house. The only time I had PM, I spotted it early on and hit with 3% h2o2 and it never came back.

The sulfur burns will change the taste of your buds and the smell if you aren't careful. I think I'd try the Brazilian scientists idea first and spray diluted milk on the plants. There is an enzyme or something that fucks PM up. The practice is said to be spreading to the grape industry and several other commercial practices. There very well may be something to it.

Remove the lower leaves. That will increase air flow and decrease the humidity in the grow area. It also provides fewer surfaces to treat.

Putting the burner pan in the freezer will help in removing that 'hockey puck'.

Wet

dart420 said:

looks like 1000 sq ft on the instructions. where does your room vent to? something to think about when using a sulfur burner or sprays. if you have pm and you grew from seed then your conditions in you room need to be addressed. from the look of your video id say you need to have better ventalation. you have good circulation in there, you say the humidity is at a constant 40% and your post doesnt say anything about low temp so if your in a cold garage then the culprit could be there too. big drops in temp with plants in the room = dew/moisture on leave in the dark and bam, prime breading ground for pm. and right now there is barely room for you to separate the plants and they are in veg....... there will be no room in there once they start to stretch. and since you topped em they are gonna grow outwards as well as up.

Click to expand...

it vents out of the house though a carbon filter, they were healthy clones when i got them (or at least they seemed that way) i think my problem is night time temps being to moist and cool, i do run my dehumidifier at night which produces heat and that helps keep the temps between 68-83

seems like there was no room, but there is i just had them crowded because I was trimming the lower growth and moving them around.

i'm thinking to add some milk and water (is there a name for that combination?), and saving for a hepa filter to attach to the intake.
My exhaust fan is rated to twice the cubic feet of my room so I don't think thats the case.
prolly the night/morning temp/moisture

thnx again RIU! learn something new everyday on this site

makiboy said:

thnx man, so since you got those experience points,

dry is better than wet? or should I spray the with water before the burn?

also should I continue to use antifungal spray and water solution in between or leave it up to the sulfur on its own? baking soda and sulfur = death?

One more thing, after todays burn the powder turned from powder to a yellow looking hockey puck thing, can i reuse this until burns off
or should I refill every burn, every other burn?

this is my first grow, and thanks for the help

Click to expand...

i never wet mine. drier is better when it comes to fighting mildew.

i only use sulfur. if done right you shouldn't need the sprays.

yes, reuse the sulfur. one load will last forever. you do NOT need to grind it up every time. it melts. it has to fully melt before it can vaporize. it melts whether it's ground or solid.

i had mildew every indoor grow for years until i started burning sulfur. i haven't had it since. if you stop using it several weeks before harvest and do not allow it to build up on everything then there will be no effect to the final outcome of your buds. this is why you only want one small short puff of sulfur every dark cycle.

or we can keep guessing.

thanks fdd2blk!!! and everyone else too!

i hope I can post a "PM dealt with" post, fingers crossed.

There seems to be more than one school of thought on reusing sulfur. I haven't had to use it yet, and hope to never have to in my house, so I'm looking all over for information and I see people saying dump it out, it loses strength. I've also heard it compared to frying with oil, sure you can reuse it, but eventually it gets pretty nasty...

Serapis said:

There seems to be more than one school of thought on reusing sulfur. I haven't had to use it yet, and hope to never have to in my house, so I'm looking all over for information and I see people saying dump it out, it loses strength. I've also heard it compared to frying with oil, sure you can reuse it, but eventually it gets pretty nasty...

Click to expand...

i've been using the same pot of sulfur for over 2 years. i topped it off once a year ago.

i had mildew every indoor grow for years until i started burning sulfur. i haven't had it since. if you stop using it several weeks before harvest and do not allow it to build up on everything then there will be no effect to the final outcome of your buds. this is why you only want one small short puff of sulfur every dark cycle.

or we can keep guessing. [/QUOTE]

not sure why you wouldnt address why its happening in the first place. i prefer to make a enviroment that mold doesn't like. i keep my temps at a constant 73, humidity at 40-50%, air circulation is great since everyhere in the room gets hammered by air. and last but one of the most important in my opinion is ventalation, i run a 800 cfm fan that pulls air out and i have a 400 cfm fan feeding fresh air in. no need to spray or burn anything. most people i know wont smoke with a match so i cant imagine they would wantto burn sulfered buds. i have had herb that had sulfur burnt and holy hell was it harsh. i think you may be onto somthing though with your short puffs method. every one else ive heard burn sulfur will let it burn for 3-4 hours each time............

dart420 said:

i had mildew every indoor grow for years until i started burning sulfur. i haven't had it since. if you stop using it several weeks before harvest and do not allow it to build up on everything then there will be no effect to the final outcome of your buds. this is why you only want one small short puff of sulfur every dark cycle.

or we can keep guessing.

not sure why you wouldnt address why its happening in the first place. i prefer to make a enviroment that mold doesn't like. i keep my temps at a constant 73, humidity at 40-50%, air circulation is great since everyhere in the room gets hammered by air. and last but one of the most important in my opinion is ventalation, i run a 800 cfm fan that pulls air out and i have a 400 cfm fan feeding fresh air in. no need to spray or burn anything. most people i know wont smoke with a match so i cant imagine they would wantto burn sulfered buds. i have had herb that had sulfur burnt and holy hell was it harsh. i think you may be onto somthing though with your short puffs method. every one else ive heard burn sulfur will let it burn for 3-4 hours each time............

Click to expand...

i know exactly why i get powdery mildew.

i've heard of people who over fed before harvest and their buds tasted like shit. should we all stop feeding now?

seems everyone simply wants to argue.

not trying to argue with you, in fact i think you may be one of the only people that uses a sulfur burner in a reasonable manner. +rep to you for sharing that. where i live the pm is rampant outdoors naturally for most of the summer and fall so that sucks and may be where it came from the first time i encountered it. i havent had to battle it since having better climate control and more air in/out as well as tons of air movement in the room 24/7. should i ever encounter this problem ill give your short puffs method a shot. and i like how you use it in veg as a preventative when you get clones.