Early Tomato Blight

» MikelLH - Are there any effective fungicides against early blight?

I live in the humid South (Charleston, South Carolina). I recently built a new raised bed in my backyard. I put in four heirloom tomatoes and my two Better Boys. The heirlooms came from a high quality private nursery. The Better Boys came from Wal-mart. Within a few days the Better Boys demonstrated signs of early blight. I got rid of them, but the blight had already begun to spread to the heirlooms. I'm thinking of digging up the heirlooms - which are in awful shape - and beginning over. Does anyone know of a fungicide that is effective against early blight. The two I've used don't seem to impede it at all. Thanks for any suggestions.

-- posted by MikelLH

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» Arzeena - Safe fungicidal sprays for early blight

I've never had early blight on my tomatoes but plenty of late blight. Since they are both caused by fungal infections (albeit different species), you can safely use a copper or sulphur based spray.

I'm more used to using copper sprays which are marketed as bordeaux sprays, Bordo, or copper sulphate. They should be sprayed once a week and will help prevent further infection on the plant.

Also, try to do a bit of pruning to increase the airflow around the plant. You should remove any diseased leaves anyways so that they're not a source of spores for new infections.

-- posted by Arzeena

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» velvet_peach - bacterial spot

I have little black spots on my green tomatoes which according to my "Ortho's Gardener's Problem Solver" is "bacterial spot". It says to use a fungicide containing both maneb and basic copper sulfate. I'm new to garnening so I don't know much about this. I looked for fungicide containing these two things but all I found was a general fungicide by ortho called "Multi-Purpose Fungicide (Daconil 2787®) Plant Disease Control" I couldn't find a list of ingredients to see if it had the two called for, but as it was the only fungicide I could find I got it. Does anyone know if this will get rid of the bacteria?

Also I have serious questions about the safety of eating tomatoes or peppers (bell and banana) that I sprayed with this stuff. How soon after spraying can you eat the fruit? Should you try not to get the spray directly on the fruit? What's the procedure for harvesting after using this stuff?

thanks!

Susan (ed: male celebrities)

-- posted by velvet_peach

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» Arzeena - Bacterial spot & Daconil

Susan,

I don't use any synthetic chemicals in my garden but the research on Daconil turned this up. The active ingredient is: 2,4,5,6-Tetrachloro-1,3-benzenedicarbonitrile.

Here's the chemical fact sheet from Spectrum Labs:
http://www.speclab.com/compound/c1897456...

Unfortunately, there is very little you can do organically to control bacterial spot. Pruning the affected fruit seems to be the only answer that Rodale has. I would try doing foliar sprays with compost or manure teas to see if the micro-organisms in the teas can outcompete the bacterial spot.

Good luck!

Arzeena

-- posted by Arzeena

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» o2Diane - tomatoe plant disease?

I've had a vegetable garden for many years and have never observed what I now have in my garden. We relocated our vegetable garden due to better sun location. Our tomato plants are growing like crazy but we noticed just recently that the leaves are all beginning to almost be drying up from the top down. The leaves are curling and at first I thought it was lack of water but on closer viewing I noticed that on each of the stems there seems to be a zigzag type of growth on the stem near the leaf base. It's hard to describe but it seems to be taking all the life out of the leaves.It is spreading to the pepper plants as well. I'm not sure if it might be the new location or if there is some sort of a disease I don't know about. Any advise you could give me I would really appreciate. Thank you.

-- posted by o2Diane

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» spinlily - Organic fungicide

I was just reading about fungicide last night on the net because I have black spot on my roses, again...

I was happy to find this site:

http://www.whyy.org/91FM/fungicide.html

I haven't tried these yet, but I'm going to, and I'll put the Cornell formula on my roses and fruit trees this winter, too.

The tomatoes are good so far.

-- posted by spinlily

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» exbronxgirl - bacterial spot

In response to bacterial spot posted by velvet_peach:

Read the label on any insecticide/fungicide etc and it will tell you the waiting period for most fruits and vegetables. I try to use organic when possible but there are times when there is no other alternative than a chemical. I always wait an extra day or so than wha the labes says, and i also pick whatever is pickable BEFORE i spray, even if it means letting things ripen in the kitchen. One or two sprays for the season should combat most pests etc.

-- posted by exbronxgirl

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