Cured - lucky!
This was the lucky break for this baby Paph vietnamense, where possibly a spider mite attack led to a bacterial and/or fungus problem.
Some leaves started to get a relatively small light brown/gold colouration patch, that then proceeded to spread along the leaf/leaves - destroying those portions of leaf as it progressed along. Not a super fast spread, but wasn't snail pace slow either.
The growing area has good air-movement. Leaves are stay dry. So maybe bacterial.
Responding to the situation ---- all the leaves were sprayed with phosacid spray. No stopping of the spread. Thiomyl was then used. Also no improvement.
Finally --- after things were looking quite nasty ----- copper spray.
That's the result I mentioned on some other thread ----- for this time, the copper spray really stopped whatever it was in its tracks. Three-quarter (or so) of one leaf was destroyed, and the remaining one-quarter has been doing great and functioning nicely. One older big leaf didn't get the attacking organism on it, so it remained just fine.
But pretty sure that the organism would have taken down this plant if a systematic treatment hadn't been used.
One attached pic shows the 'blue' residue from the copper spray on the destroyed leaves. I just left all the old leaves as-is.
A little leaf is coming out from the crown too. Back in action!!!
I have another pot of this same plant - same young age - (growing right next door to this one in the pic) which didn't get attacked by whatever it was.
Last edited by SouthPark; 10-11-2020 at 07:18 AM..
|