I searched this forum and using bleach at the above mentioned concentration and at lower concentrations as a cure for root rot came up a number of times.

I have used h202(concentrated hydrogen peroxide) with good success on my cara cara orange.

I followed Tapla's advice here:

http://forums2.gardenweb.com/discussions/1388282/hydrogen-peroxidethe-miracle-cure

I work with microbes, and that sounds about the concentration I would use to sterilize things in the lab... I'm not familiar with the concentration of sodium hypochlorite (bleach) in chlorox but I would adjust the % accordingly to what is recommended. Both concentration and duration of exposure would be key.

I would second H2O2, although at a 3 - 5% solution. This is the concentration sold at drug stores. I use them to cure root rot on my orchids (although less successfully on my citrus...)

I have read about the bleach treatment but somehow never had the courage to pour bleach even at lower conc , maybe will test with a expendable citrus plant .

I have treated root rot successfully with 3% Hydrogen Peroxide based on this chart .

For non fruiting plants I do two fold treatment with H2O2 and Agri-Fos Systemic Fungicide foliar spray , not keen on using a systemic on stuff I would eat .

Devsense: I don't think you need worry quite so much about the Agri-Fos. Unless I misunderstand how it works, it inoculates plant tissues with phosphite, which inhibits further growth and reproduction of the fungus and strengthens the plant's natural defenses. It is used in commercial orchards and rapidly converted into plant nutrients in the soil. It is used commercially on fruiting trees as both a soil drench and a foliar spray.

That being said, does anyone have any experience using Agri-Fos (or similar Phosphite-based fungicides) on container citrus? A brief search of the forum's past discussions of the fungicide show it mostly being recommended for use on in-ground trees in California. It's even recommended as a twice-yearly drench to prevent infection by phytophthora (which cause root, collar, and foot rot diseases in citrus).

My experience with clorox is in a clinical lab setting as well as insecticide for bag worms. In lab freshly made 10% clorox is used by 1 cup household clorox to 9 cups water. This solution successfully treat bacteria, viruses, molds. I have used a 25% soln of clorox on my evergreen trees to kill bagworms. (1 cup chlorix to 3 cups water) using a pump sprayer apply liberally.

Hey Mike - I did not recommend using bleach for root rot above!