Dendrobium Nobile yellowing leaves
I've had this Nobile for a few years now and it was doing really well until it got knocked off the windowsill. It's since had spider mites which are now gone, and scale at the same time (also gone). I've been spraying it with Pyrethrum and it's killed the pests. While the plant has now slowed down yellowing the tips of its leaves, they're still yellowing as this new cane just began yellowing its lowest leaf. Every cane has lost its leaf from the bottom up, tip to base. This is normal I know for years old growth, but these growths are 6 months old. Some growth literally lost its leaves before it matured.
I don't know if it's just stress because I've sprayed the plant every other day, paired with extreme low light due to quarantining it.
Luckily at least this wasn't with the bulk of my orchids, and instead lives next to noid phal, so nothing else is contaminated.
I am also sure I've eradicated all the mites. I've been wiping multiple leaves daily and checking it with a magnifying glass so I know there is no more mites or scale.
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