| It is fungus and a constant problem for commercial growers. It exists everywhere in the world and attacks the plant through any kind of root damage. It is necessary for us to drench the pot in anti-fungicides every time we re-pot.
It can spread very fast and is often fatal. The best fungicides are very toxic and expensive. $300 a quart is common. Cleary 3336, BanRot and Subdue are 3 very effective commercial products, but probably not available in retail sizes.
Damp potting medium and insufficient air circulation are the breeding grounds of the fungus.
I am using a different approach with a product called Companion, which is all natural Bacillus subtilus microbes. (55 billion per gallon) It not only can kill the fungus but inoculates the plant to further resistance to attack.
The worm tea we get from OurVitalEarth is supplemented with Bracillus. They add it to the feed of the worms. It is not the strong concentration that I am now using, but one of the reasons it works so well.
I will post some results as I get through this spring.
The cinnamon used in Brookn's formula is a natural fungicide and readily available for you to try.
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jerry |