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What is on my soil?

Posted: Wed Mar 03, 2021 12:35 pm
by tracieh
My collection is growing alot. And so I added a grow light under the lowest shelf on my rack. The plants sit on the floor but have plenty of light. Most pots down there have this white powder on the soil. Is this an airflow thing? It's only the ones on the floor. The rest are untouched. It's on the seeds I've recently planted (just their soil not the actual seed) but I'm afraid it's going to ruin their chances.

Thanks for your help! Image

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Re: What is on my soil?

Posted: Wed Mar 03, 2021 1:03 pm
by Supercazzola
To me, it looks like mold. Do you have good airflow (or any at all)?

Re: What is on my soil?

Posted: Wed Mar 03, 2021 1:17 pm
by tracieh
Im buying a little fan today. They're on the floor so I'm guessing their airflow is less. Is there a way to remove it and not hurt the seeds?

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Re: What is on my soil?

Posted: Wed Mar 03, 2021 1:53 pm
by ChefDean
Usually that light gray fuzz isn't a big issue, as long as it stays light. If you're worried about it, a little fan will help greatly, along with a light spray of fungicide. I use Bioadvanced 3 in 1 (formerly Bayer 3 in 1) and it works well, even on seedlings. Just a light spray once a week to knock it down, and a light spray once every two to four weeks to prevent.

Re: What is on my soil?

Posted: Wed Mar 03, 2021 2:04 pm
by steve booth
As Chefdan says it's not normally a problem I get it most years with my fresh peat seed mixes. It does no harm and tends to disappear after a week or so.
Cheers
Steve

Re: What is on my soil?

Posted: Wed Mar 03, 2021 4:57 pm
by Supercazzola
ChefDean, do you think that Bonide Neem Oil Fungicide, Miticide, & Insecticide will be ok? Just trying to give the OP some choices.

Re: What is on my soil?

Posted: Wed Mar 03, 2021 4:59 pm
by Carnies
I tried Neem Oil and it just smells. Take Down Garden Spray works better and doesn't smell as bad.

Re: What is on my soil?

Posted: Wed Mar 03, 2021 5:05 pm
by ChefDean
Supercazzola wrote:ChefDean, do you think that Bonide Neem Oil Fungicide, Miticide, & Insecticide will be ok? Just trying to give the OP some choices.
I don't know, I use the Bioadvanced 3 in 1.
However, from what I've read, pretty much any sulphur based fungicide will work, just use it only as much as you need to control the issue.

Re: What is on my soil?

Posted: Wed Mar 03, 2021 6:52 pm
by tracieh
Thanks guys! Im getting a fan today and will use a spray. I have safer brand I think it's called? I'm not at home to check.

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Re: What is on my soil?

Posted: Thu Mar 04, 2021 5:27 pm
by tommyr
tracieh wrote: Wed Mar 03, 2021 6:52 pm Thanks guys! Im getting a fan today and will use a spray. I have safer brand I think it's called? I'm not at home to check.

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Make sure it has NO copper in it. I use Bonide sulfur fungicide.