blackfly

[lillylottie]

what is good for blackfly on runner beans ??? ???

[lillylottie]

[KathrynH]

Encourage ladybirds onto the plants. If there are too many though, try Organic Pest Spray, available from The Organic Gardening Catalogue.

[Georgie]

Or blast 'em off with a hosepipe.   :)

G x

[Fork]

The lady asked what was good for the greenfly on her runner beans

Surely,blasting them off with water and the introduction of ladybirds along with an organic pest spray is efinately not good for the black fly  ;) ;D ;D ;D

[Georgie]

ROFL  ;D  ;D  ;D

G x

[grotbag]

i use rhubarb juice

[Mr Smith]

 I use a bog standard pesticide spray  for blackfly, greenfly and anything else that wants to have a go at my veg, my broad beans did not have one blckfly on them and within two days I had blackfly on about 25% I did a couple of sprays and cleared them up so thre goes my organic dream :)

[saddad]

I tolerate some blackfly, being organic, the thumb takes out major colonies but find they and their green friends are much less o f a problem after the overwintering Ladybirds have started breeding..  :-\

[keef]

Use soapy water - it gets in thier eye's so they cant see where thier going and so fall off... thats what i was told when i asked my gramp when i was a youngun.. ;D

[Robert_Brenchley]

It dissolves a thin layer of wax over their bodies, so they dehydrate.

[calendula]

I grow tansy in various places as the green/blackfly love it - trouble is the tansy can get to be a bit of a problem as well but it pulls up easily enough  :)

[Barnowl]

You could try SB Plant Invigorator. Spray very finely twice at a three day interval (not one week as it says on the label). I think it qualifies as Organic. It's expensive but you use it with a very high dilution rate.

[Maidenheadtaff]

Blackfly almost killed my runner bean and did kill my two broad bean plants.
The old Ladybirds can only eat a bellyfull and there seemed to be loads more than that.
I tried the diluted washing up liquid but didn't seem to work so resorted to a real spray. But naughty but did the trick and cleared them completely off runners. They got my broad beans so weren't letting them get my runners as well.

Bought broad beans from waitrose just to see since mine were eaten by the flies, but they ere horrible