Q.staghorn fern
A recently purchased fern has white “dust” on the leaves. It does not appear to be aphids or white fly. I have washed it off but it returns. Is this normal? If not, can I use horticultural oil on the fern?
Downtoearthdigs
Answered on June 5, 2015
The white coating is actually hair and serves to protect the plant by helping it retain moisture.
Do not spray the plant with horticulture oil or wash off this protective service.
The white dusty appearance is normal.
Here is a link with great information.
https://www.gardeningknowhow.com/ornamental/foliage/staghorn-fern/staghorn-fern-information.htm
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