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Azalea prefer acidic soils, new lava may not be the answer to a problem that became apparent three months ago. Have you used any other components to adjust the Ph or retain moisture? Is the lava mix free draining?I inspected roots 2 months ago and moved it into a bigger pot with new lava rock, roots seemed to be ok.. do you suggest to apply some fungicide? Which one?
Ok, lets start at the beginning! As i understand it you have had the plant for three months and it was replanted two months ago! As you are in Argentina the season will be different from my locale. Please explain any other work you have done to the tree and the season that you are currently in in your location. I understand the climate can vary a lot with the geography so more detail rather than less would be helpful. Also the general care practices with watering routine and fertilizer used and how often?I use lava will all my azaleas and never had a problem, I bought it in Italy, in Barbazza bonsai. And I’m in Argentina, so that would not be possible
The moss within the root structure seems to indicate higher levels of water retention than you suspect. Is it possible the root ball core is staying wet from soil remaining prior to purchase? You indicated the roots were inspected! What type of soil is remaining in the core of the root ball?I only water when the soil is dry, like my other trees. It is covered, it’s not receiving rain water , only when I water it.
This then could very well be the basic issue, lava on the outside retains far less moisture and dries quickly, the Kanuma holds more moisture and retains a wet core! Prime conditions for fungal issues to arise along with root rot!The old soil is old kanuma, and I can’t get kanuma here in Argentina, we don’t even have akadama or pomice.
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