stoice Posted July 7, 2009 Share Posted July 7, 2009 I seem to be over-run with black fly this year! They all over my pot marrigolds, my tomato plants and my courgettes. What can i use that is safe for when we want to eat our tomatoes and courgettes, but will get rid of the blighters. I have a lacewing and ladybird house already (I assume they eat black fly as well as green fly) and have osteospurnums and ox eye daisies to attract hover flies but i guess they just can't cope! I've heard nettle spray can kill them, as well as feeding my plants, but i don't know how to make it. Anyone got any ideas? Quote Link to comment Share on other sites More sharing options...
Cinnamon Posted July 7, 2009 Share Posted July 7, 2009 Here too, & the Green Fly are just as bad. I am spraying almost daily now Quote Link to comment Share on other sites More sharing options...
Olly Posted July 7, 2009 Share Posted July 7, 2009 It's the weather I think - they've been all over my runner beans. I spray mine with soapy water (Ecover washing-up liquid) but you can do it with just water, in a spray bottle - I rub my fingers over the leaves and stems to remove them, but the soapy water helps to loosen their grip. Quote Link to comment Share on other sites More sharing options...
stoice Posted July 7, 2009 Author Share Posted July 7, 2009 Thanks for that Olly. I was also wondering if a little diatom puffed over them could do the trick? Quote Link to comment Share on other sites More sharing options...
chickencam Posted July 7, 2009 Share Posted July 7, 2009 Blasting them with a hosepipe can help a bit too. Quote Link to comment Share on other sites More sharing options...
