Q.Boston ferns
The fonds are all sappy & sticky. Why?

Downtoearthdigs
Answered on July 4, 2017
This is likely Honeydew, from a pest infestation.
Treat the plant with Neem Oil.
Here are some links with more information.
https://www.gardeningknowhow.com/garden-how-to/info/what-is-honeydew.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
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