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New growth turning dark and looking wilty

stucrew

Member
Hi guys and gals. Got a problem with these White Widow. What do you think? New growth sites are all turning nasty. Growing in cococoir in smart pots, ebb and flow tables. 1000 watt light canna coco nutes. I burned sulfer pearls last night and I hadn't noticed the new growth looking weird before. Anybody seen this before? Ideas? Plants health except for this all a sudden.
 

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TychoMonolyth

Boreal Curing
I had a week old seedling that just collapsed one day. I figured it was toast. I pulled it out very slowly and the whole tap root followed. It was not as white as it should have been I put it in a cup of water with a touch of peroxide. It lived! About a week later I could see little hairs growing on the root. I replanted it and it caught up to the others by the time it went outside.
 

King Rat

Active member
by burning sulfur pearls you mean what?
i know of sulfur pearls being used in aquatics.

Like MJ said possibly root rot and the beginning of an infection.

Another guess of mine is a toxicity caused by chemicals.
Is there a chance you spilled any chemical or used cleaning agents at something that comes into contact with your nutrient solution?

If not, look for your rootzone.
 

Chunkypigs

passing the gas
Veteran
Sulfur reacts badly with oil based sprays for pests and fungus, have those plants ever been treated with anything besides sulfur?

If not is your humidity low?
 

stucrew

Member
Thanks guys for your suggestions. I haven't treated them with anything except burning sulfer perls. I was hoping perhaps someone else had experienced this symptom before and could identify it readily. I wonder if I maybe had overnuted them except I have normally experienced just the burned leaf tips when I have over fed plants before. Has anyone experienced Fusarium Wilt before? Does this look the same?
 

King Rat

Active member
please can someone explain to me what 'burning sulfur pearls' is good for?
i've never heard about it and google won't give me the answer
 

superx

Active member
Veteran
please can someone explain to me what 'burning sulfur pearls' is good for?
i've never heard about it and google won't give me the answer

Has me scratching my head,

I am familiar with sulfume sulphur "helps with powdery mildew, botrytis, pests etc"
 

stucrew

Member
The sulfer prills are "burned" ,actually melted. It is for killing powdery mildew. I bought prills and put them in a metal bowl and put that in an electric skillet. The prills melt down to liquid and puts off a sulfer "smoke". Just put the electric skillet on a firm non-flamable surface in your grow room and turn off your lights. Let it "burn" over night or for 5 or 6 hours. The sulfur kills the mildew. It is a good preventative to do before you put them into flower. Some people don't like to use it during budding because the buds may retain some of the smell. I found out the hard way, to be sure to and turn your lights off :)
 

stucrew

Member
This Safer Grow Mildew Cure works well too. Spray it on plants even in bloom and it knocks out the mildew for about a week. We made dunk with it when we harvested and dunked our branches then hung them. Once the branches dried out the mildew was gone. Be sure mildew is gone before you container your buds for curing.
 

stucrew

Member
https://www.ilovegrowingmarijuana.com/powdery-mildew/ Here are good ideas too. Hopefully you never get powdery mildew. A friend of mine told me burning the sulfur prills is what they do if the encounter it and the sulfur takes care of it. A lot easier than spraying plants and the sulfur smoke saturates your room and kills spores on your walls and ceiling too. It does STINK like rotten eggs for a while though afterward.
 

stucrew

Member
This is what I use. I "burn' the prills in stainless bowl in an electric skillet. Turn on high and leave on high or almost high for a few hours with lights off.

You can also spray Safer Cure on your plants and then dunk the branches at harvest and hang to dry. Works well but the mildew comes back after several days except after the dunk at harvest.

There may be better products but these are my experience so far.
 

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