What's new
  • ICMag with help from Landrace Warden and The Vault is running a NEW contest in November! You can check it here. Prizes are seeds & forum premium access. Come join in!

Mold or Something Else?

Hi all,

Suffered from a webby white mold AND mildew on my last round, and am starting to see what may be the early signs in this round. What i am seeing is small white, thin, fibers floating around the tent. Some appear to be caught up on leaves/buds, and also a bunch have built up right on my fan grills, blowing in the breeze.

While there is a strong breeze in the tent, humidity had been hovering from 60-80% which i believe is way too high. Temps around 75F.

Can anyone attest to that these fibers are mold? I don't notice any clusters of it growing anywhere, and don't see any powdery mildewy buildup anywhere. Just these thin fibers hanging off leaves, buds, and the fan grills. I've had mold before though, so it wouldn't be crazy for it to happen again. May need some fungicide. Sorry, no pics.
 
I have a single duct exhaust fan blowing out near the top of the tent. I have no intake fan, only an intake vent for pull through from exhaust. I have two desktop fans creating breeze in the tent.

I also have a tiny dehumidifier that doesn't seem to make a difference in overall humidity levels, too weak. Also humidity outside the tent has been high at 60-65%, so i have been thinking about buying a large dehumidifier to treat the room.
 
I am pretty sure this is mold, but it doesn't seem to match the descriptions i have found in my general research and certainly can't find any pictures that match what i have going on. My initial theory is that the mold can't take firm hold to cluster up due to breeze, so it just makes it to a strand and then blows around.
 

Dog Star

Active member
Veteran
There is a lot of mold strains.. most of them thrive in dark non-ventilated spaces
so by your explanation of exhaust and inlet that you dont possest in proper way
you create ideal enviroment for molds..

maybe to not be so cheapo with gear cause it can save your harvests and your
overall health later after you will use this same weed..

weed poluted by molds have aflatoxins,mycotoxins and other shit that can develop
nasty illnesses if person ingested or smoked this kind of growed weed.


So look good and google a bit on molds... its not peniciline.. you will not feel better from them.


Kind regards
 
Thanks Dog. While these couple of plants may be a loss, what do you recommend to improve the environment? I could easily add an intake fan. Do you feel i need to deal with the humidity levels as well? My intent is not to cheap out by any means. I'm on the verge of just breaking out the big guns and get some Eagle 20 for any future plants.
 

soundman

Member
Never seen mold float around like that. Are you sure no other fiber types got sucked into your tent? Carpet etc.?

What type of mold was on your last crop? Does this look the same? How big tent and what size exhaust and what size passive intakes?

Lots of foks running high RH but not at temps in mid 70's.I think. Key is high tent air turnover and air movement in tent. What size desktop fans are you using? You will need air movement through plant and canopy.

I am still not sure this is mold. Can you post a picture?

I run low VPD as I have always done so. I would lower RH in room to 40 or so. I run lower than that in my tent no problems.


Edit - If I understand you have one exhaust and one passive intake. You should have twice the intake size as exhaust size. You can choke off your exhaust fan.
 
There is a lot of mold strains.. most of them thrive in dark non-ventilated spaces
so by your explanation of exhaust and inlet that you dont possest in proper way
you create ideal enviroment for molds..

maybe to not be so cheapo with gear cause it can save your harvests and your
overall health later after you will use this same weed..

weed poluted by molds have aflatoxins,mycotoxins and other shit that can develop
nasty illnesses if person ingested or smoked this kind of growed weed.


So look good and google a bit on molds... its not peniciline.. you will not feel better from them.


Kind regards

Well you are 100% wrong that no intake fan is the problem. Probably half the tent growers going just pull through intake vents i did it myself for a long time. If his RH in the room is too high a fan on the intake wont make a difference he will pull in wet air through a fan or vent...
 
Thanks Dog. While these couple of plants may be a loss, what do you recommend to improve the environment? I could easily add an intake fan. Do you feel i need to deal with the humidity levels as well? My intent is not to cheap out by any means. I'm on the verge of just breaking out the big guns and get some Eagle 20 for any future plants.

If you have pm spay all the veg plants with eagle (nova here in canada same shit) or it will be a never ending issue. I live in a area with low rh once you get pm good luck getting rid of it without eagle/nova. All the fans in the world womt get rid of it.

Your humidity is the problem not fans.
 

Dog Star

Active member
Veteran
Well you are 100% wrong that no intake fan is the problem. Probably half the tent growers going just pull through intake vents i did it myself for a long time. If his RH in the room is too high a fan on the intake wont make a difference he will pull in wet air through a fan or vent...



Dont understand why to not use proper ventilation... and on another hand i dont have nothing against you help this person that have problems with mold.

Myclobutanyl on buds is so sexy thing and all you know is to nuke
a problem.. not to put proper ventilation but to use Eagle 20.. LOL

Eagle boys flying high and search for worsened health issues.. :biggrin:


Its good i dont have this kind of issues in mine grow,otherway i will
stop to grow weed,there is no need to spend resources,electricity,
time and efforts on a weed that have potential only to made you ill..

Kind regards and enjoy nuking your tent.. :tiphat:
 
Never seen mold float around like that. Are you sure no other fiber types got sucked into your tent? Carpet etc.?

What type of mold was on your last crop? Does this look the same? How big tent and what size exhaust and what size passive intakes?

Lots of foks running high RH but not at temps in mid 70's.I think. Key is high tent air turnover and air movement in tent. What size desktop fans are you using? You will need air movement through plant and canopy.

I am still not sure this is mold. Can you post a picture?

I run low VPD as I have always done so. I would lower RH in room to 40 or so. I run lower than that in my tent no problems.


Edit - If I understand you have one exhaust and one passive intake. You should have twice the intake size as exhaust size. You can choke off your exhaust fan.

32x32x63 inch tent. 4 inch duct fan exhaust, 4 inch passive intake. two six(i think) inch desk fans blowing upward from opposite corners of tent. may clip one to blow over canopy.

Mold on last crop was white webby clumps in the biggest bud, and i actually ended up water curing it. dried product had these same type of fibers inside some of the buds. ending up throwing most of it away. Air was very stagnant that grow, i had no fans blowing in the tent, only the exhaust going and passive intake. Felt humid and stagnant when you'd open the tent and ultimately gained a musty basement smell blended in with the fruity skunk.

I do have a carpet in the room, but really not certain if that produces this type of fiber. very well could and i just haven't noticed. Part of why i wanted to see if anyone has encountered this and confirmed as mold before.
 
Ok, just made a break through discovery.

soundman, your comment about a carpet or other source made me take a good look around the room and tent. The carpet is sort of quilty and just doesn't have this sort of fiber. I kept looking and looking and landed on my carbon filter outside the tent which has a sort of weird cloth encasement. So i picked a little bit at the side of it and sure enough, these little strands came right off. This is right next to the passive intake. I am 99% sure that is what is building up inside the tent.

Thing is, i DID have webby white mold in the past and it wasn't this. it was growing patches on flowers, soil, and side of pots.
 

HqFarms

Member
Thanks Dog. While these couple of plants may be a loss, what do you recommend to improve the environment? I could easily add an intake fan. Do you feel i need to deal with the humidity levels as well? My intent is not to cheap out by any means. I'm on the verge of just breaking out the big guns and get some Eagle 20 for any future plants.

Please learn to grow and control your environment. Breaking out chemicals is just a bandaid and a very poor bandaid. Chemicals like that are only pushed around this cannabis community because of cash croppers who don't care who they harm with the finished product.

You will always continue to have issues unless you fix your current problem or you can just enjoy your chemical infused product
 
I have identified the culprit and it's not mold. By all means i am TRYING to learn how to control the environment. I don't plan on spraying anything at this time. I have been actively trying to avoid spraying any fungicide of any kind. Don't assume i am trying to do that as a short cut, i simply want to eliminate the problem and continue to make improvements to the environment.

If you have suggestions, by all means please provide them.
 

Latest posts

Latest posts

Top