I leave my standard bay trees outside all year round. All I do is move them
close to the garage wall where they are sheltered from the wind. They do not
seem to be affected by frost (and this year has been the worst).
Is it possible that by bringing them indoors that you are encouraging
insects that would not live through the winter if they were left outside.

AndyP
SE London

--
"Wisest are they that know they do not know." Socrates
"If more of us valued food and cheer and song above
hoarded gold, it would be a merrier world" JRR Toliken, The Hobbit
"Camilla Peake" wrote in message
...
Can anyone inform me what the black sticky substance might be that keeps
appearing on my bay trees. They are outside in Summer and in an unheated
conservatory in the Winter. It drops down onto the floor tiles around the
pots.
Have tried washing with mild soapy water but, alas, it keeps returning.
Camilla