Dumb indoor tomato question

[MollyBloom]

For the first time, I'll be growing toms in the greenhouse this year. Should I leave the window open when the flowers form, to let insects in to pollinate?

[MollyBloom]

[supersprout]

Yes, on warm days!
My mum used to encourage us kids to give the flowering tomato plant stems a little tap whenever we were in the greenhouse, which was supposed to do the same thing ;D

[MollyBloom]

Thanks! I can never remember which plants need pollinators and which will do it alone. :-[

[Curryandchips]

To be honest though, try keeping insects OUT of your greenhouse ...