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no time these days
too busy
so thank you very much for the link
perhaps if my VI gets drained tonight I'd manage to check and read this one out
thank you !

Your welcome. I think I sprayed it on the leaves daily, remove it from the direct sun, and checked the soil. Because in many pots I had rainworms, which made the soil different. So I totally replaced it. You can try. All the luck!

so you're also growing avocado?

I grow this inside so they don't get earthworms in the post since we bought soil for indoor planting

Are you Dutch cause they call earthworms "regenworm" here meaning rain worms :)

I normally replace the soil when its warm enough, its too early to do that now but perhaps I could try .. am worried to do anything at all and risk killing it

I did a few years back. I had one, which I grew from a seed above the water being held by toothpicks. Ups. I forgot to check it for translation. I'm from Slovenia, and here they are called "dezevniki", which literally means rainworms. Thanks for translating it correctly instead of me.
I also grew it inside, but I used outdoor soil and not the bought one. So I agree, this can't be the reason for your avocado to be sick.

I started growing avocados from a pit above water as well! I started planting them straight into a pot a while later and now I'm planting them straight into the ground! These seeds have a particular trick than involves "finding two halfs for each one and leaving a sort of not buried more than half of the bottom of the avocado pit and not leaving the top half too much above the soil".

avo33.jpg
I always get to see the seedling growth and I know by its "greeness" and different vibrant colors how well is doing so.
IMG_9514.JPG

Look how some leaves are also having a similar problem to yours. Some sort of "underdevelopment". But also take a moment to watch how beautiful their colours are!