G
GOOROO
It appears you have Sclerotium root rot
http://www.ipm.ucdavis.edu/PMG/r735100911.html
http://www.ndrs.org.uk/article.php?id=013028
http://journals.tubitak.gov.tr/agriculture/issues/tar-07-31-2/tar-31-2-3-0609-15.pdf
http://www.sweetbeet.com/growernet/Resources/pests/diseases/sclerotium.htm
http://keys.lucidcentral.org/keys/s...Fungal/SclerotialBlight/Sclerotial blight.htm
I recommend that you acquire some Trichoderma harzianum (Plant Shield is one brand name or email me through my webpage www.microbeorganics.com and I'll mail you a bit) and treat your soil. Exactly what is the product and spore count of Glomus Intraradices that you applied? I have a thread/sticky on another well known forum which may help. Other than that, use lots of compost or vermicompost in your soil.
Well I posted this here so I could get responses from people like you because this is clearly organic but I am in 100% canna coco and will probably just include something to go back to sterile....
I was adding a few organic additives but it seems risky....
I am also NOT the only person with this...I know of 2 other great gardeners that have had this show up.
May incorporate a light dose of h202 or potentially zone into the regimen.
On the myco product....it was from the promix reps....they had a bunch but there was essentially no label and they said it wouldn't be available for some time....I'll go take a pic real quick.