Aphids haven't been awful, but the blackfly are attacking the cherry really badly.
From the guardian.co.uk
Ladybirds are very effective against unwanted pests such as greenfly and blackfly.
From the express.co.uk
Sap suckers such as greenfly and blackfly are usually tackled this way.
From the independent.co.uk
Take off shoots on plants which are infested with greenfly or blackfly and dispose of them.
From the expressandstar.com
Watch out for blackfly homing in on the broad beans and pinch out the tops of the plants if necessary.
From the independent.co.uk
Lupin aphid is a member of the greenfly and blackfly family.
From the edp24.co.uk
Digger wasps eat greenfly, blackfly and leaf beetle larvae.
From the express.co.uk
We've had quite a bit of blackfly on the broad beans, and greenfly have been troubling the most tender plants.
From the thisisbristol.co.uk
Pinch out the tasty tops of previously sown broad beans when you have a few flower trusses to discourage blackfly.
From the guardian.co.uk
More examples
Blackish aphid that infests e.g. beans and sugar beets
Small blackish stout-bodied biting fly having aquatic larvae; sucks the blood of birds as well as humans and other mammals
"The Black Fly Song" is a song by Wade Hemsworth, written in 1949, about working in the wilds of Northern Ontario. It is an enduring classic of Canadian folk music, covered by a variety of other artists. ...
Blackfly is a Canadian sitcom which ran on the Global Television Network for two seasons in 2001 and 2002. ...