White root mold

dynamitejack

dynamitejack

Well-Known Member
1) PICTURE OF PLANT *** VERY IMPORTANT ***
2) Growing indoor or outdoors- Indoors
3) Watering schedule-DWC
4) Growing Medium-Rockwool/hydroton
5) What stage of growth- flowering 2 weeks

2 days ago I noticed white mold on one of my northern lights plants. It looked also that there was a web like substance on the roots as well. I took it out of the dwc res I had and moved it to a sepearate bucket flushed the roots which removed all the mold I could see. I gave the roots a H2O2 bath and added about 30ml to the gallon of water in it.

After a day she looks better but not great, at about 5:30 today I changed both of my dwc res and added H2O2 to them as well, then about 20 minutes ago I saw another plant in one of the res that I changed and has the same moldy substance growing on it

The first pic is of the plant that I just found the mold, the rest of the pics are of the first plant that I found had mold and it is growing back. It looks like the mold is killing the fan leaves first. Should I buy hygrozyme?
 

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SpruceZeus

SpruceZeus

Well-Known Member
what are your rez temps like? Any light getting to the rez?
H202 35% or 50% should take care of the problem, i dont think you need hygrozyme.
 
dynamitejack

dynamitejack

Well-Known Member
I added 10 ml of Hygrozyme per gallon and iced the res and the temps hit about 65-70 is this an acceptable range? This is going to be difficult to keep up with for 2 more months. Am I going to run into problems with my diy ice packs touching roots or blocking some air bubbles if I use a 2 liter bottle?
 
curious.george

curious.george

Well-Known Member
I had a similar thing, the res temp is too high I think. The H2O2 only knocked it back but did not kill it, so I had to use a lot of it just to keep it at bay. I got a UV water sterilizer, that kept it at bay too. After fully cleaning my system and putting new plants in it the problem never came back with only the UV thingy as to control it.

I did a lot of internet research when I had this stuff. I think this is a slime mold.
 
dynamitejack

dynamitejack

Well-Known Member
The situation does not loot good fellas I can keep to res temps below 70 degrees and the air temp stays between 73-77 with 50% humidity. I added H2O2 and 40ml of Hygrozyme (directions say 8ml-10ml per gallon) but this mold keeps on coming.. HELP!
 
L

Luv2Gro

Well-Known Member
dam buddy i duno... i would suggest h2o2 as that took care of my rez problems immediately, you're obviously already trying this so i dunno...

the only other thing i woulda told you was putting ice in the rez, lol, u trying tht too i see... :)

have you tried flushing the whole rez w a highly concentrated h20/h2o2 solution, maybe 7ml/L 50%h2o2??

GL bro, keep us posted..
 
dynamitejack

dynamitejack

Well-Known Member
curious.george said:
I had a similar thing, the res temp is too high I think. The H2O2 only knocked it back but did not kill it, so I had to use a lot of it just to keep it at bay. I got a UV water sterilizer, that kept it at bay too. After fully cleaning my system and putting new plants in it the problem never came back with only the UV thingy as to control it.

I did a lot of internet research when I had this stuff. I think this is a slime mold.
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Where did you get the uv water sterilizer? Where can I get 50% h2o2?
 
dynamitejack

dynamitejack

Well-Known Member
Nothing is working!!!! I have a hand full of dead leaves every day, I don't know what else to do H2O2 and hygrozyme wont stop it. Please help!!!!!!
 
dynamitejack

dynamitejack

Well-Known Member
I think I have a different problem. Last night I gave the plant's roots a h2o2 bath, cleaned everything with bleach, filled the res with 5 gallons of water 5 TBS of FF Big Bloom, 10 TSP of Tiger Bloom, 50 ml Hygrozyme, .5 ml water conditioner, 150ml 3% h202 and the plants just keep getting worse. The PPM is steady around 1000 and the ph rises about .3 every 24 hours, which is weird because I have read that with pythium the ph is supposed to go down. The water temperature is about 68 degrees. I don't know what else to do, everywhere I look say "make sure everything is clean, add h2o2 and hygrozyme." I don't know what else to do please any info or suggestions would be great!
 
chusett

chusett

Well-Known Member
chusett

chusett

Well-Known Member
dynamitejack said:
Ya I was using seltzer water, its too late now, they all caught the funk and died :(
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sorry dude.. i was reading up on this grow the whole time. Im gonna get me some of that peroxide just in case..

the seltzer water u used might not be sodium free.. i read that usually causes the mold in flowering. If u use that to spray again on the next soil grow, maybe spray it when lights go off and use sodium free for sure!
 
dynamitejack

dynamitejack

Well-Known Member
chusett said:
sorry dude.. i was reading up on this grow the whole time. Im gonna get me some of that peroxide just in case..

the seltzer water u used might not be sodium free.. i read that usually causes the mold in flowering. If u use that to spray again on the next soil grow, maybe spray it when lights go off and use sodium free for sure!
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It was defiently sodium free, I think my res temps just go too high... now I won't be able to:cry:
 
chusett

chusett

Well-Known Member
dynamitejack said:
It was defiently sodium free, I think my res temps just go too high... now I won't be able to:cry:
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see thats something i don't understand.. if the grow room temp itself is fine.. how does the res temp get too hot. I know you didn't leak light in since you said you painted your lids and bought those white covers...
 
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