Mildew on coco

calinycgrow · #1 (**permalink**) 11-07-2006, 11:55 PM

I started to have a white powder mildew problem about a month ago. It started on my starter cubes from clones that I bought so it probably was there before I got them and was just not visible yet. I have been burning sulfer for three weeks now and my canna cocco medium still has the mildew on the top layer of medium. It stays off the plants (most likely because of the sulfer) but I can't seem to kill the mold on the soil. Does anyone have any recomendations?

GrowBot · #2 (**permalink**) 11-08-2006, 01:42 AM

i would think the sulphur would make it's way down to the surface of your coco. have you taken a really close look at it to ensure that's what it is? can i ask your feeing /water schedule? what's the ppm of your water before adding nutes? i'm a huge coco fan. always curious how others grow with it.

calinycgrow · #3 (**permalink**) 11-12-2006, 12:36 AM

I usually water every other day. Sometimes if it seems to dry up quicker I will water 2 days in a row. Most of the mold is gone, but i can't quite get rid of all of it, its really frustrating. This might not affect my product but i wish i could just get rid of all of it. As far as my water, i just use tap water, add dechlor to remove cl- then ph to 5.2-5.8 and add nutes.

GrowBot · #4 (**permalink**) 11-12-2006, 01:06 AM

Quote:

Originally Posted by calinycgrow

I usually water every other day. Sometimes if it seems to dry up quicker I will water 2 days in a row. Most of the mold is gone, but i can't quite get rid of all of it, its really frustrating. This might not affect my product but i wish i could just get rid of all of it. As far as my water, i just use tap water, add dechlor to remove cl- then ph to 5.2-5.8 and add nutes.

once mine get pretty good sized i feed 2x a day. strange about that mold. have you just tried leaving your water out for 24 hrs. to let the chlorine dissapate? you ph "before" you add nutes? after all nutes/additives are added, then adjust ph.

calinycgrow · #5 (**permalink**) 11-16-2006, 11:55 PM

Thanks for the advice on PH after nutes. The Coco nutes don't change the PH at all tho cuz just for a test I PHed before and then checked PH after adding the nutes and it was the same. By now pretty much all the mold is gone, I think it just needed several weeks of sulfer. Recently though, the humidity in the room has dropped considerably( which could have killed the mold as well), it used to be between 40-50 (I was using a demidifier on occasion if it went over 55%) and in the last week or two it was been staying inbetween 25-35% for no apparent reason. My plants still seem and look healthy, Is this a dangerously low humidity?

GrowBot · #6 (**permalink**) 11-17-2006, 12:27 AM

it could be better. i think 35 is fine. i have a hard time keeping rh up. 25-35 isn't optimum but i think you can do fine with it.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
coco nutes?	ruderuderudi	Advanced Growing Techniques	2	04-11-2009 05:06 PM
The coco revolution..	tetrahydrocanna	Advanced Growing Techniques	30	11-12-2008 01:12 AM
Mildew on coco	calinycgrow	General Indoor Growing	0	11-06-2006 10:22 PM
How to flush salts from shitty coco coir? Help, please!	TheFxckingHero	General Indoor Growing	0	06-26-2006 08:03 AM
good deal on coco coir & question for coco growers	TheFxckingHero	General Indoor Growing	2	06-12-2006 10:30 PM

Site links

FAQ

Important

Extra

#1 (permalink) 11-07-2006, 11:55 PM
calinycgrow Medical Marijuana Patient Join Date: Oct 2006 Posts: 137	Mildew on coco I started to have a white powder mildew problem about a month ago. It started on my starter cubes from clones that I bought so it probably was there before I got them and was just not visible yet. I have been burning sulfer for three weeks now and my canna cocco medium still has the mildew on the top layer of medium. It stays off the plants (most likely because of the sulfer) but I can't seem to kill the mold on the soil. Does anyone have any recomendations?

#2 (permalink) 11-08-2006, 01:42 AM
GrowBot Registered User Join Date: Oct 2006 Posts: 1,491	i would think the sulphur would make it's way down to the surface of your coco. have you taken a really close look at it to ensure that's what it is? can i ask your feeing /water schedule? what's the ppm of your water before adding nutes? i'm a huge coco fan. always curious how others grow with it.

#3 (permalink) 11-12-2006, 12:36 AM
calinycgrow Medical Marijuana Patient Join Date: Oct 2006 Posts: 137	I usually water every other day. Sometimes if it seems to dry up quicker I will water 2 days in a row. Most of the mold is gone, but i can't quite get rid of all of it, its really frustrating. This might not affect my product but i wish i could just get rid of all of it. As far as my water, i just use tap water, add dechlor to remove cl- then ph to 5.2-5.8 and add nutes.

#5 (permalink) 11-16-2006, 11:55 PM
calinycgrow Medical Marijuana Patient Join Date: Oct 2006 Posts: 137	Thanks for the advice on PH after nutes. The Coco nutes don't change the PH at all tho cuz just for a test I PHed before and then checked PH after adding the nutes and it was the same. By now pretty much all the mold is gone, I think it just needed several weeks of sulfer. Recently though, the humidity in the room has dropped considerably( which could have killed the mold as well), it used to be between 40-50 (I was using a demidifier on occasion if it went over 55%) and in the last week or two it was been staying inbetween 25-35% for no apparent reason. My plants still seem and look healthy, Is this a dangerously low humidity?

#6 (permalink) 11-17-2006, 12:27 AM
GrowBot Registered User Join Date: Oct 2006 Posts: 1,491	it could be better. i think 35 is fine. i have a hard time keeping rh up. 25-35 isn't optimum but i think you can do fine with it.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)