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Thanks for the info. I'm trying the neem oil since I already have it. I'll spray it on my next batch which already is showing signs of fungus. I'll keep the Daconil in mind if the neem oil doesn't work.

I'm pretty sure this plant has alternaria but need some confirmation. I cut most of the lower buds off because of rot. Actually I could just snap most of them off because the stems became very brittle. The leaves on the buds all had the brown spots with concentric rings as in the second pic. Any...

This plant had root rot and very little roots a few days before the photo was taken. Then after I gave it Azos and GW, all those roots grew but only on the bottom.

I was using both Azos and Great White and was getting great results. I guess since it costs more, I falsely believed the GW was making these roots so I stopped using Azos and just used GW. When I did that, no more incredible roots. So now I use both again. I think the Azos encourages root growth...

I was getting constant root rot. Finally figured out municipal water was the cause. I started using bottled water with Great White and Azos. These roots developed within days and this plant had root rot.

If I were to let that plant go for another week it would start rotting. Where I am that's the best they get during winter. Here is the same strain during the summer. Notice no powdery mildew or yellow leaves.

Well then it shouldn't be yellowing like that. I've been growing for years. This strain does not get fat especially outdoors during the winter here in this part of Hawaii. It gets really rainy and gets way less light than during the summer. Anyway I'm asking about the leaves turning yellow not...

This is a wider shot of the plant in the first pic. I pulled off lots of the yellow leaves but more are yellowing. Fourth week of flowering. This is a cheese strain that doesn't get too fat.

These plants are outdoors in promix and are about 1 weeks from harvest. The lower leaves are yellowing quickly and becoming easy to snap off. Is this normal?

I guess I have to explain again. I'm using stored rainwater that was comes off my roof and goes into my gutters. I know this is full of pythium. It must be from all the dust in the air and on the roof. I had several grows in coco with bad root rot. I want to disinfect my water with bleach...

QUOTE] I used a lot of bleach, 1 ml per gal because I'm using stored rainwater which I know is full of pythium. Also could be the particular bleach I used. Noticed it said "with fabric protection" on the bottle. I'm going to try cutting it down to .5 ml/gal and use regular plain bleach. Then...

Need some advice on these outdoor plants. I was using stored rainwater but realized it was full of pythium so switched to municipal water which has calcium in it. Now appears to have calcium buildup and toxicity and also magnesium deficiency. Am I correct?

Just for the beneficial bacteria and fungi. Actually I already tried using the dechlorinator and noticed some negative effects. I didn't know if it was residual bleach or the dechlorinator causing it. The plants turned a bit yellower with streaks on the lower leaves. They recovered after a week.

4 NaClO + Na2S2O3 + 2 NaOH → 4 NaCl + 2 Na2SO4 + H2O This is the reaction according to Wiki. It does produce sodium chloride but enough to hurt the plants? I tried letting the bleached water sit in a open container and was still detecting chlorine days after but without using a bubbler. I'll...

It's Alternaria which is a fungus that causes brown spots with concentric rings on the leaves.

Hi, new member here. I posted this in another thread but this one seems more recent. Can I use sodium thiosulfate to dechlorinate the water after using the bleach? Sodium Thiosulfate is used for dechlorinating aquarium water.

Please explain. I understand chlorine is the active killing ingredient in bleach. Shouldn't removing it make it harmless to all organic matter?

Of course chlorine will kill the azos. That's not what I'm asking. Reread my post about sodium thiosulfate. This removes chlorine. Use this after the bleach, then the azos.

Okay I'm sold on using bleach to disinfect my water. To allay fears of toxicity, what if I use sodium thiosulfate to dechlorinate the water after letting it sit with bleach for a while? Sodium thiosulfate is used to remove chlorine from aquarium water so it's safe for fish. I like to use Azos...