Newbie need help ident. Spots on Tomato started indoors.

[PatriotSinger]

Hello everyone, books and investigation online is hard when it comes to disease as so many seem so similar. I’m growling my veggies inside to get a head start on the MO climate and I’m noticing my verity of different tomato’s some are showing signs of disease in what I’m guessing is their vegetative state. I’m not sure If having different varieties grown so close together is my downfall. Some were showing yellow lower leaves so I let them dry out some I had though possible overwatering. After that experiment no dice it was getting worse so I put the water back to them, maybe under watered. Well now the black spots are showing up and leaves are dying so I need to get a hold on this. I am giving them the light 16hours a day. Is there a size they light should be cut back or as long as they get 8 hours of dark they should be fine? Anyone have a guess at what I’m dealing with. New organic potting soil as well. Old pods though maybe something left in them? I’ve seen some talk of bleach bathing growing pods between seasons. Thanks for the help.

 

[Chuck]

Hello everyone, books and investigation online is hard when it comes to disease as so many seem so similar. I’m growling my veggies inside to get a head start on the MO climate and I’m noticing my verity of different tomato’s some are showing signs of disease in what I’m guessing is their vegetative state. I’m not sure If having different varieties grown so close together is my downfall. Some were showing yellow lower leaves so I let them dry out some I had though possible overwatering. After that experiment no dice it was getting worse so I put the water back to them, maybe under watered. Well now the black spots are showing up and leaves are dying so I need to get a hold on this. I am giving them the light 16hours a day. Is there a size they light should be cut back or as long as they get 8 hours of dark they should be fine? Anyone have a guess at what I’m dealing with. New organic potting soil as well. Old pods though maybe something left in them? I’ve seen some talk of bleach bathing growing pods between seasons. Thanks for the help.

It appears your plants have septoria leaf spot or bacterial leaf spot. It is caused by a bunch of things including overhead watering, lack of ventilation, overcrowding, improper watering, infected containers. There is not a cure but you can stop the disease from spreading by using a copper fungicide. Bonide makes a good one. This disease does not affect the fruit and you will still get a good crop if you take care of the problem ASAP. From what I can see of your plants they need to be repotted into a larger container and kept further apart with a fan blowing on them. Only water from the bottom up and try to keep the leaves dry. Remove all of the affected leaves and then spray

 

[PatriotSinger]

Thank y

It appears your plants have septoria leaf spot or bacterial leaf spot. It is caused by a bunch of things including overhead watering, lack of ventilation, overcrowding, improper watering, infected containers. There is not a cure but you can stop the disease from spreading by using a copper fungicide. Bonide makes a good one. This disease does not affect the fruit and you will still get a good crop if you take care of the problem ASAP. From what I can see of your plants they need to be repotted into a larger container and kept further apart with a fan blowing on them. Only water from the bottom up and try to keep the leaves dry. Remove all of the affected leaves and then spray

Thank you, I have a Bonide Copper Fungicide!