Orchids

[langara]

I have three lovely orchids all flowering, but have had to cut the leaves off
one as I presume it was a mite, it had black spots and yellowing leaves
ver unsightly and didn't want them to spread to the other two, my question is will any new leaves grow and if the mite returns how to treat it. Thanks

[SneathHenry]

Pesticide are available to protect plants.
http://www.gardeningnorthside.com.au/landscaping-north-shore/