I am in North Florida near the ocean. My first attempt at growing a small organic vegetable garden which I started in late March. It was doing great until a few days ago. I have a fungus on the zuchini leaves and also on the stems. I sprayed with hydrogen peroxide today. I am hoping that will help. Also, some of the leaves are turning dark, and I don't know if it is from fungus.

Also, I am getting holes in my Georgian collard greens. It is still okay, but hope it will not get any worse.

My string bean leaves are getting yellow and I added iron, hope that is okay to do.

I am trying to keep from using insecticides. Also, I am using an organic fertilizer from Home Depot. There are not any clear directions on package, so just guessing on amount.

If anyone has any suggestions, I would appreciate it. Thanks.

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Originally Posted by Mick74

I am in North Florida near the ocean.

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See Q#4, then Q#2 for coastal gardening: UC Master Gardeners of Orange County Also: Lawn & Garden - UF/IFAS Extension: Solutions for Your Life For University of Florida / Gardening Solutions... Great Site!

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Originally Posted by Mick74

My first attempt at growing a small organic vegetable garden which I started in late March. It was doing great until a few days ago. I have a fungus on the zuchini leaves and also on the stems. I sprayed with hydrogen peroxide today. I am hoping that will help. Also, some of the leaves are turning dark, and I don't know if it is from fungus.

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Don't think spray would hurt, safer bet would be plain water. For Moldy Zuchs: Mould -What do you know about mould, in the garden and on food? - Kitchen Gardeners

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Originally Posted by Mick74

Also, I am getting holes in my Georgian collard greens. It is still okay, but hope it will not get any worse.

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For Holy Greens:
Cole Crops | Entomology, at CAES | UGA

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Originally Posted by Mick74

My string bean leaves are getting yellow and I added iron, hope that is okay to do.

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string bean leaves are getting yellow - Google Search Some yellowing is normal

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Originally Posted by Mick74

I am trying to keep from using insecticides. Also, I am using an organic fertilizer from Home Depot. There are not any clear directions on package, so just guessing on amount.

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Check the name or for URL on the bag and Google it. The Mfg.Site should have more info.

A lot of this sounds like SeaSalt poisoning, I believe Q#4 at link above covers this. You will definitely have to change your gardening style with living near the ocean.
But Hey! That's just part of the enjoyment of Gardening, right?

See Ya round the watering hole... KUXJ