Medicated Bonsai
Well-Known Member
Leaf septoria, also known as septoria leaf spot or yellow leaf spot, is a plant disease caused by a specific kind of fungus known as Septoria lycopersici. ... Leaf septoria usually affects plants just after they enter the flowering stage and usually forms on lowerleaves firs
So I've come to the conclusion that I indeed had leaf septoria. For any that want to take preventative measures, I believe my case was caused by a combination of high humidity (55-65%) and improper air movement. Here's what I would recommend..
1) Keep an eye on your RH. This means for both day and night. You should be able to see what your humidity peaked at on your digital temp/rh meter. Ideal conditions should stay within 50-55%
2) Have a fan to circulate air at the top and another at the base of the plant. I believe this is where I could have prevented the issue. There wasn't enough air circulation on the lower leaves and caused mold issues as the plant became denser with more foliage growth.
3) Soil amendments...being a first time grower, I made the mistake of adding too much perlite and using it as a top dressing once most of it surfaced. With the lack of air movement and the water retention of perlite, I feel like this increased my chances. I think I'm lucky I didn't run into algae and fungus gnat issues as well.
But, if you already have leaf septoria, these are the step's I would take...
1) Make sure that its indeed leaf septoria. Yellowing/leaf spots can be caused from a variety of other things but, they all have their own set of symptoms, patterns, etc. The last thing you wanna do is treat for an illness that doesn't exist. This could cause a bunch of new issues/symptoms to appear.
2) Move and Isolate the plant from the others so this disease doesn't spread too quickly.
2) Examine your plants a little closer. How much of the foliage is effected? If the disease is in it's earlier stages then simply remove the effected leaves and increase/adjust the air movement. If the disease has spread all the way to the top and covers most leaves then do not strip any leaves. Stripping too many leaves and leaving her naked could cause more stress/harm than good. At this point, it's up to you to decide the fate. I'm not sure if there's much you can do once it's reached this stage. Being that its mold, I think it's safer to toss and start over. However, do not spray the whole plant with fungicides to treat the spotting. This wont wet or trap any of the spores. It'll simply splash everything all over the place. Causing the disease to spread.
3) Clean your tent/grow area. I wiped everything down with a towel and hydrogen peroxide.
4) Apply some type of fungicide or natural oil (ie - neem). This will mainly depend on which cycle you're in. Spraying fungicides during the flowering process may ruin your buds.
Hopefully this can help someone out in the future. If i'm wrong about anything please let me know! Cheers and Good Luck guys!
So I've come to the conclusion that I indeed had leaf septoria. For any that want to take preventative measures, I believe my case was caused by a combination of high humidity (55-65%) and improper air movement. Here's what I would recommend..
1) Keep an eye on your RH. This means for both day and night. You should be able to see what your humidity peaked at on your digital temp/rh meter. Ideal conditions should stay within 50-55%
2) Have a fan to circulate air at the top and another at the base of the plant. I believe this is where I could have prevented the issue. There wasn't enough air circulation on the lower leaves and caused mold issues as the plant became denser with more foliage growth.
3) Soil amendments...being a first time grower, I made the mistake of adding too much perlite and using it as a top dressing once most of it surfaced. With the lack of air movement and the water retention of perlite, I feel like this increased my chances. I think I'm lucky I didn't run into algae and fungus gnat issues as well.
But, if you already have leaf septoria, these are the step's I would take...
1) Make sure that its indeed leaf septoria. Yellowing/leaf spots can be caused from a variety of other things but, they all have their own set of symptoms, patterns, etc. The last thing you wanna do is treat for an illness that doesn't exist. This could cause a bunch of new issues/symptoms to appear.
2) Move and Isolate the plant from the others so this disease doesn't spread too quickly.
2) Examine your plants a little closer. How much of the foliage is effected? If the disease is in it's earlier stages then simply remove the effected leaves and increase/adjust the air movement. If the disease has spread all the way to the top and covers most leaves then do not strip any leaves. Stripping too many leaves and leaving her naked could cause more stress/harm than good. At this point, it's up to you to decide the fate. I'm not sure if there's much you can do once it's reached this stage. Being that its mold, I think it's safer to toss and start over. However, do not spray the whole plant with fungicides to treat the spotting. This wont wet or trap any of the spores. It'll simply splash everything all over the place. Causing the disease to spread.
3) Clean your tent/grow area. I wiped everything down with a towel and hydrogen peroxide.
4) Apply some type of fungicide or natural oil (ie - neem). This will mainly depend on which cycle you're in. Spraying fungicides during the flowering process may ruin your buds.
Hopefully this can help someone out in the future. If i'm wrong about anything please let me know! Cheers and Good Luck guys!
