[Nozebleed]

Hi.

Whats the best way to rid a greenhouse of flies? i've had to completely open my door and window to help ventilation in the last few days and a good few flies are getting trapped when i close up at night.

What can i do?

thanks

[michael brenock]

are you sure that they are house flies as they are not attracted to any growing material. there may be something in the greenhouse that is attracting them, try and locate what they are feeding on and get rid of that. There are a number of flies very similar to house flies that lay eggs and the larva attack fruit and vegetables.
michael brenock horticultural advisor (retired)

[Nozebleed]

i have a range of flies! im not sure what type they are at all..one was green and lookied like a horse fly. there are some black flies too. Im worried as i have baby carrots and beetroot planted in the greenhouse! Should i take them out?