I can see some sun damage on the leaves in the photos. Can you share a close up of the issue. It almost looks like cell collapse from cold.
Cheers,
BD
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Good Morning,
Would appreciate some help with these white marks on one of my orchids. The orchid has been split as it had out grown its container and I thought this may have been the cause.
There is nothing on the underside of the leaves and one of them has still flowered.
Any help appreciated.
Martin
I can see some sun damage on the leaves in the photos. Can you share a close up of the issue. It almost looks like cell collapse from cold.
Cheers,
BD
It does look like mite damage.
I agree with Ray. Sunburn is not usually in dots and small areas, more general over the whole leaf or leaves. It may be better nay ne - leaves are tender at one stage of development, and tough as old boots at another stage - that accounts for why you can get light/heat damage on one leaf but not another. Mites are less fussy, although they do refer young and tasty new leaves.
Martin.
I don't know where you live, but if Azamax is available, I recommend to use it on the plants.
It contains azadirachtin, the active ingredient in need oil, but without the pitfalls of oils. It is a contact and systemic insecticide and miticide (a rare combo) that affects both immature stages and adults (very rare), while being nontoxic to pollinators and mammals.