White ''dust'' - '' powder '' on top of my soil.

I've noticed a white cover on the surface of my soil.I have excess humitidy that goes up to 80%.It is something i will manage ASAP.Further than that,does anyone know what it is ? I dug the soil in the area and it was only on the surface.Ideas ?I will get a photo if this happens again.

I am also 25 days into flowering,so i HAVE to lower RH

Salt build up, mycelium, powder mildew, botrytis. Let's see some pics...80% is really bad! Get a dehumidifier and an exhaust fan in there!

25 days in flowering and 80% humidity? Probably powdery mildew!

chewberto said:

25 days in flowering and 80% humidity? Probably powdery mildew!

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It was on the surface of the soil.NOWHERE else tho.I have already ordered my dehumidifier and i have an 125mm exhaust fan,and a 100mm intake.Also a 16watt for circulation.Rainy days and a garden outside gets RH 80% easy peasy.. :/.I will get a pic as soon as i notice it.LETS hope not again.
Check my sig for pictures..It was on the surface of the autoflowerers soil

Soil fungus. Beneficial. Lower your RH though because yo u're going to have mega issues unless you're running some really pure sativas.

OGEvilgenius said:

Soil fungus. Beneficial. Lower your RH though because yo u're going to have mega issues unless you're running some really pure sativas.

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Are you sure ? I will try to get a photo but it was just as described..when i mixed the soil a little,it ''got away''

If you are into brewing teas, that's primo source of colonized mycelium. Take a little and throw it into the tea brewer along with the normal recipie. Waste not, want not.
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tikitoker said:

If you are into brewing teas, that's primo source of colonized mycelium. Take a little and throw it into the tea brewer along with the normal recipie. Waste not, want not.
.

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Nah,i am not making any teas.I think that makes sense to be a fungus.Yet..a photo will let everyone know what it is ..Thanks..!!

just scoop it up with a spoon and replace the part you removed with fresh soil. its no big deal.

qroox said:

Nah,i am not making any teas.I think that makes sense to be a fungus.Yet..a photo will let everyone know what it is ..Thanks..!!

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If it sporealates green, that's trichoderma..bennifical.

qroox said:

I've noticed a white cover on the surface of my soil.I have excess humitidy that goes up to 80%.It is something i will manage ASAP.Further than that,does anyone know what it is ? I dug the soil in the area and it was only on the surface.Ideas ?I will get a photo if this happens again.

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Pics would help but it sounds like you have fertilizer salts precipitating/building up in your medium. You may need to do a flush...

I'd not worry. Get that humidity problem in order and you'll see it clear up in no time. In the mean time, if aesthetics is an issue you can try blowing a fan directly on the topsoil to dry it out don't make this a habit though because your topsoil will dry out too quickly. If you notice that the base of your plants stem starts to get slimy or soggy then come on back. This site is full of folks eager to share their own, unique perspectives.

Alexander Supertramp said:

Pics would help but it sounds like you have fertilizer salts precipitating/building up in your medium. You may need to do a flush...

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Yep.I watered with plenty of rainwater from yesterdays rain.Thanks for the concern..!! A photo will come if i see this again.I am waiting eagerly the dehumidifier

Alexander Supertramp said:

Pics would help but it sounds like you have fertilizer salts precipitating/building up in your medium. You may need to do a flush...

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That's a really good point. I am always having the same issue with my orchid collection in the summer heat, constantly forcing me to mist media daily to dissolve those salts and flush them out. I never would have thought the salt would build on potting soil tho. Excellent observation.

At last not to the point of showing itself on the soil's surface.
Sorry for second post---- edit and clicked save---didn't work.... weird?!

tikitoker said:

That's a really good point. I am always having the same issue with my orchid collection in the summer heat, constantly forcing me to mist media daily to dissolve those salts and flush them out. I never would have thought the salt would build on potting soil tho. Excellent observation.

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Read Unble Bens Tweaks and pointers,as well as every other thread he has.He explains many daily situations,but you have to experience many of them (like mine) to think what could have been.It is a VERY good read

lol- sure is. I got it in the favs for a while now.

tikitoker said:

lol- sure is. I got it in the favs for a while now.

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Glad to hear that..!!

tikitoker said:

If it sporealates green, that's trichoderma..bennifical.

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I friggin hate that shit!! Ive had to throw away 3 mono's to trich in the past month. Thats why I try to stear away from soil additives that contian trich. nasty little trick!! but yes, it is bennifical to plants and their root systems, just keep it far away from your mushroom grow, It will contaminate them every time until you get a hold on it and destroy it!!!