Okay, I have an official answer to this topic. Below is my correspondence with OMRI:
Question to OMRI:

I'm curious if you could give me an answer on what would define worm castings as being organic. I believe this kinda falls in a gray area. I've raised my red worms in beds of Canadian Spaghnum peat moss. They consume the bedding, shredded newspaper, rabbit manure, vegetable and fruit waste, coffee grounds & filters. The fruit, vegetables & coffee were bought in a supermarket and were not marked organic.

I know other growers who use composted horse manure for bedding & feed. If the horses had been wormed, would that prevent the worm's castings from being organic?

This subject came up on a worm grower forum, and one suggested I contact OMRI to get their opinion.

Thanks,

Larry

Reply from OMRI:

Hello Larry,

Let me start by clarifying what organic means in this case. The word "organic" applies only to human food and livestock feed (worms are not livestock). Worm castings cannot be certified organic; rather, they can be determined to be "suitable for use in organic production" by OMRI or by other certifying agents. Worm castings that are made with allowed feedstocks are generally suitable for use in organic production. Allowed feedstocks are any plant/animal material (including manure from animals treated with antibiotics, drugs, or deworming medication), other nonsynthetic materials (such as mined minerals), and synthetic materials on the National List (i.e. newspaper). The agricultural feedstocks do not need to be certified organic.

So both your feedstock mix and the other growers' feedstocks are suitable for use in organic production.

I hope this answers your questions.

Sincerely,

Lindsay Fernandez-Salvador
Technical Director / Quality Manager
Organic Materials Review Institute
P.O. Box 11558
Eugene OR 97440-3758
Office (541)343-7600 x117
Fax (541)343-8971

Excellent result Larry C

Thanks for the info sure does give me some food for thought. I was always wondering how castings fell in the organic world.

Thanks for the report, Larry. Very informative.
Liz

Okay, to blow the "official opinion" out of the water, I just came across this on a website.

Guaranteed Analysis
Certified Organic OMRI Listed
Pure Black Castings

Total Nitrogen (N)........................ 1.0%
0.1% Water Soluble Nitrogen
0.9% Water Insoluble Nitrogen
Available Phosphate ........... 0.5%
Soluble Potash .................. 0.2%
Calcium (Ca)............................. 1.0%
Total Iron................................. 0.02%
Derived From: Worm Castings
0.9% Slow Release Nitrogen
Non-Plant Food Ingredients:
Humic Acid............................. 0.02%

Here is the url:
http://www.monroeworks.com/analysis/pure_black_castings_vermaplex_analysis.htm


Found this at Monroe Works out of Florida, There is also a simple test they describe on how a consumer can check the quality of castings with water.

Looked through their web-site, but did not find the "castings test". Do you remember what section it was in? Thanks.