[Caretaker]

I have found the odd snail in side my greenhouse, they are big garden ones but how do they get there.
I close the door every evening but leave the top window open about 2 inches.
I can see trails on the out side of the roof leading to the window.
Is there anything i can put on the window opening to stop them?
Reg

[arugula]

You may find that they are living or travelling underground or hatching out of the soil, either your greenhouse floor or in pots.

[sunshineband]

If they really are coming in through the window you could try some copper tape perhaps?

[Goosegirl]

I have had them in my hanging baskets before now!

[chrissie B]

we just panneled out our shed and found that they were coming in via a small hole in the floor so i just piled in a load of pellets seems to have helped abit .
chrissie b

[Bernard]

They do climb to a great height. Trees, walls, greenhouses - perhaps even mountains? They are  Upwardly Mobile Gastropods.

[mobilekat]

They are great climbers- I stayed at a hotel once that had had a customer complain about a snail coming in through the window of a attic bedroom!
The hotel was not really sure what they could do to prevent this (nor am I really), and the irate customer was demanding money off the room rate for the trauma!
Not sure I really class a snail as trauma in a hotel room, its much bigger trauma in my baby kale!