An abundance of trich's

[cat of curiosity]

This may or may not help but each 6" will allow 100 CFM at 500 fpm so not much noise. If the fan pushes 500 CFM then 5 is what you would need to keep sound at a minimum, residential duct is sized at 750 fpm.

thanks! i'm going to start by installing one additional 6x8'' intake vent, and do trial and error until i get right at the goldielocks zone. i have the vents already, i just don't want to break any branches, lol. gonna wait for clean out to reconfigure, right now i'm just leaving the tent with a six inch unzipped flap (against the wall, so no light leak). it fixed the pressure problem for now, but it's not filtered so that's straight dusty musty fungi infested accident waiting to happen due to an oversized fan that i thought would be a great idea...

 

[cat of curiosity]

F.M.L.
It was only that leaf on the S&S Cindy, but the B.M.R. had (7) fan leaves with it on them... nothing crazy like that sugar leaf, but definitely present...
GrowErr and Cat, I am taking your advise and mixing up that concoction; however, does the type of soap and oil matter? Like, I have Dawn Ultra Antibacterial soap and I have zero vegetable oil... but I have virgin olive oil, canola oil or grapeseed oil... will one of those work?

i personally would use olive oil since you have it, you don't need much, maybe a teaspoon per two gallons or 2-2.5ml per gallon. the dawn will work, but it may crisp the edges of your fan leaves. that's ok, as long as they function. i've not used that formula on pot, but i can tell you it works on hydrangeas, lilies, roses, tomatoes, peppers, squash, and lots of other stuff. @roseypeach swears by it, as well as chilli pepper spray for bugs.

try to dry it up a little, however you can. remember that low temps and high humidity are the two biggest reasons that white stuff thrives and proliferates. try to get into the 75-83f range at 'noon' (midpoint of 12/12 day), and let it hover there. the plants will react to it like it's a tropical vacation, and the mold will fuck off (as long as it's under 50% rh and over 75f).

do you use drain pans? if so, do you allow the excess to sit in the tent at lights off? if so, i recommend you stop. buy some thrift store throw away towels and remove excess runoff. try to get more fresh air flow in as well. do the opposite of everything you would do if you were trying to grow mushrooms

 

[Rufus the 13th]

I do use drip trays, but rarely get runoff... I water slowly and give them, roughly, 1/2 gallon every other day. Then one day, every other week I do bring them in the bath tub and give them a full watering with some runoff...
All in all, I've never left sitting, stale water in the tent!
I just opened up my last passive intake spot...
However, in getting the temps higher, should I get a new fan controller to bring the extraction fan speed down? That should help in getting the temps higher, right?
Also, with all that airflow converasation that was going on, is too mush negative pressure bad? Like I said, I have a 460cmf fan in that 3'x3'x6' tent running full blast, so the negative pressure is quite insane...

 

[roseypeach]

I spray my zucchini leaves with baking soda and dish soap, also put in a bit of milk but I would probably leave that out if spraying buds . Good luck, I've only had it on my outdoor plants and it was a losing battle. I get it every year on my zucchini bad

actually milk wouldn't hurt and would perform as it would on other types of crops acting as a fungicide, insecticide and source of calcium. Obviously you wouldn't want to spray the flowers on mj, but misting (not saturating) the leaves is harmless enough as long as you don't overdo.

My go-to for pest control is a handful of fresh ripe chili peppers, 6 large cloves of garlic, 1 tsp olive or vegetable oil, 1 tbsp dawn (I use the regular blue concentrate they use on wildlife after oil spills)

I grind my peppers and garlic cloves whole in a NutriBullet blender using pulse mode, just enough to chop them a bit crumbly, then I put that in a large dutch oven on the stove, bring to a boil, then cover and simmer for a couple of hours, adding water and keeping it at nearly full. Then cool, strain well (through a fine mesh strainer lined with a paper towel to keep smaller particles from clogging your spray bottle) then funnel into an empty milk jug. I then add a teaspoon of oil, 1 tablespoon of dawn and shake well. Just use this solution undiluted in your spray bottle.

I prefer to make concentrate with two or three handfuls of peppers at a time and filling my sprayer halfway then topping with plain water.

This stuff is great for keeping whiteflies, thrips, aphids and hornworms from eating up your veggies. Just make sure at harvest to rinse fresh produce in the sink with a bit of baking soda to remove residue.

 

[Budley Doright]

actually milk wouldn't hurt and would perform as it would on other types of crops acting as a fungicide, insecticide and source of calcium. Obviously you wouldn't want to spray the flowers on mj, but misting (not saturating) the leaves is harmless enough as long as you don't overdo.

My go-to for pest control is a handful of fresh ripe chili peppers, 6 large cloves of garlic, 1 tsp olive or vegetable oil, 1 tbsp dawn (I use the regular blue concentrate they use on wildlife after oil spills)

I grind my peppers and garlic cloves whole in a NutriBullet blender using pulse mode, just enough to chop them a bit crumbly, then I put that in a large dutch oven on the stove, bring to a boil, then cover and simmer for a couple of hours, adding water and keeping it at nearly full. Then cool, strain well (through a fine mesh strainer lined with a paper towel to keep smaller particles from clogging your spray bottle) then funnel into an empty milk jug. I then add a teaspoon of oil, 1 tablespoon of dawn and shake well. Just use this solution undiluted in your spray bottle.

I prefer to make concentrate with two or three handfuls of peppers at a time and filling my sprayer halfway then topping with plain water.

This stuff is great for keeping whiteflies, thrips, aphids and hornworms from eating up your veggies. Just make sure at harvest to rinse fresh produce in the sink with a bit of baking soda to remove residue.

His plants are in flower so that was why I probably would skip the milk . Not sure if it would affect things but I would just error on the side of caution. That's what I would do lol.

 

[Budley Doright]

I do use drip trays, but rarely get runoff... I water slowly and give them, roughly, 1/2 gallon every other day. Then one day, every other week I do bring them in the bath tub and give them a full watering with some runoff...
All in all, I've never left sitting, stale water in the tent!
I just opened up my last passive intake spot...
However, in getting the temps higher, should I get a new fan controller to bring the extraction fan speed down? That should help in getting the temps higher, right?
Also, with all that airflow converasation that was going on, is too mush negative pressure bad? Like I said, I have a 460cmf fan in that 3'x3'x6' tent running full blast, so the negative pressure is quite insane...

Well on high that's a lot of air lol. What's the noise like? And I think there have been studies re negative pressure and plant growth, not sure what the effects are. I'm trying to arrange a tour of the biggest med grow in Canada to look at their HVAC, we'all see how that works out lol.

 

[Rufus the 13th]

Well, I mixed up that oil, soap and baking soda last night, and, also purchased a small dehumidifier.
I have not seen anything extreme on the plants, so I hope I'll be all good...
After watching Jorge's video of washing the buds in a hydrogen peroxide / water mixture, I definitely think I'm going to try that...

 

[GroErr]

Well, I mixed up that oil, soap and baking soda last night, and, also purchased a small dehumidifier.
I have not seen anything extreme on the plants, so I hope I'll be all good...
After watching Jorge's video of washing the buds in a hydrogen peroxide / water mixture, I definitely think I'm going to try that...

Yeah probably not a bad idea to do a wash with this crop to get anything that may have reached the buds. Try and use regular dish soap vs antibacterial but no biggie there, it's only on the surface and very diluted, not like you're feeding the plants. The higher end oils like olive oil seem to work better to mix things up, just be careful not too much or it' can also burn them. Just a few drops to help mix everything is good, same with the soap.

 

[Rufus the 13th]

Good deal!
Quick question, though...
How long will that mixture stay good? I mixed up that gallon last night, but don't have the slightest clue how much I'll use, so if I use half, will the other 1/2 last a couple weeks - when I have to re-apply?

 

[Odin*]

...error on the side of caution. That's what I would do lol.

"... err on the side of caution." Auto correct got ya, that thing drives me nuts.



Good advice here.

 

[GroErr]

Good deal!
Quick question, though...
How long will that mixture stay good? I mixed up that gallon last night, but don't have the slightest clue how much I'll use, so if I use half, will the other 1/2 last a couple weeks - when I have to re-apply?

Not sure exactly how long it'll last but I've used it as long as 2 months after initial mix and it was fine. Nice thing with this stuff is it's basically no cost and using stuff you'd normally have around.

 

[Rufus the 13th]

Exactly!
Thanks for help in me out with this!
At first, last night when I saw it on those fan leaves, I was pissed, but now I have hope again!

 

[GroErr]

Exactly!
Thanks for help in me out with this!
At first, last night when I saw it on those fan leaves, I was pissed, but now I have hope again!

Sounds like the one pheno may have been the culprit that started it. I'd cull that one going forward, it's my first cull, if the strain/pheno shows PM it's gone.

A dehuey to keep your RH below 55%, lots of airflow and you should be good. I've found 55% or below (ideally target 50%). Spraying that solution in veg before they go into flowering also helps, I do it every round whether I need it or not. It doesn't hurt or do anything to plants in veg.

 

[Rufus the 13th]

So, that's done...
What a pain in the ass!
I attempted to do it as cleanly as possible, but that was, well, impossible!
I sprayed the leaves and tried to not get any on the buds, but there is no doubt I got some on them...
I have a rotating fan on them now...
You say I have another four months, so I'll have to reapply that mixture...
Ater the harvest, and after I wash them in that H2O2 mixture, I'll be good right?
I mean, granted nothing drastic happens...

 

[GroErr]

You should be good, keep a close eye on them, you don't want to be smoking that shit. Cleaning them in H202 if it stays away should be fine. Worst case scenario you can hash them.