Blackfly V Seedlings

I seem to have a slight infestation of blackfly on the seed trays around my propagator :( Now normally I would just give them a blast with my bug spray - but at the moment I have some very very delicate seedlings on the go . Would it be safe to give a careful light spray

TIA

 

I've got problems with aphids on my emerging Chives this year, don't think the frost was long enough to take care of them.

 

How harmful can Black Fly be ?

 

In the propagator is it black fly or fungus gnats from the compost?

 

Now you mention it LD...... I thought they were Black Fly , but now looking at pics on Google images , they may be Fungus Gnats very small 2mm long black mosquito like .
What is the best treatment for this ? What damage can they do ?

 

I have used a piece of potato skin on top of the soil they are attracted to the damp area ans then disposed of.
You could try Bayer Garden
The main problem is not the flies but the maggots they eat the roots and rotting humus and breed.

 

I noticed today that Ive got quite a few flies around my seed trays gave them a blast of raid fly spray ? they were about 10mm long anyone know what these are they are a lot bigger than midges

 

10mm Thats a big fly at this time of year Mick !

 

Big midges!!!!!!!!!!!!!