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Post by canadamike on Nov 24, 2011 1:29:38 GMT -5
Ghee, I had forgotten that post I started.
Tincture of iodine would be effective, as it is on humans, it is simply not cost efficient, neither is the product sold to put on wounds of trees, also using alcool, more economical but not enough to be as cheap as phosphoric iodine.
Iodine kills bacterias too, but since it is a contact ''cide'' it needs to touch stuff. And it transforms itself relatively quickly into something else non lethal. So touching what is hidden inside cells is another matteré
In the soil, the chemist said we have an open window of 45 seconds until it transforms itself into some form of...lets say...micronutrient for lack of better english here.
Drenching would be advisable. We are trying it without much hope on AGROBACTERIUM TUMEFASCIENS, AKA crown gall on a patch of blackberries, we drenched some in the fall and will had some in the spring to see. The good bacterias can come back, and we can also help it with innoculation with good ones.
But I doubt it would be as efficient as with the funguses if our greenhouse experiment with another bacterial problem is a good indication.
The cool thing about funguses ( at least those not in the soil) is that they spread from the outside of the plant in, so they are a much easier target.
Iodine is probably available in some more economical form in an ag coop.
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Post by potter on Nov 24, 2011 4:25:28 GMT -5
Thanks for bringing this up again..sooo interesting. Luckily for me, we don't have too much fungal trouble with our crops. Just the usual blight on tomatoes and potatoes..but with the freakish weather this year blight didn't turn up on our area. I've used garlic water succesfully on my pear trees against black spot for few years now. If I can find a source of iodine chrystals? here uk..I would not mind to have a go and trial the effect. My neighbour has couple of small fruit trees that are in need some desperate attention..it would be ideal to trial the effects on same disease on neighbouring trees with different 'mixes'.
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Post by Hristo on Dec 16, 2011 18:43:36 GMT -5
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