Q.Frit Fly
Hi For the past 2 weeks my lovely lawn has been massacred by thousands of black flys that after going on line they are Frit fly We have patches everywhere and we cannot go out as we will be covered How can I get rid of them please John Cook

Certified GKH Gardening Expert
The best solution is to increase the amount of plant coverage in the area. They prefer dry dirt, so anything to remove that will help, drastically.
This article will help:
https://www.gardeningknowhow.com/plant-problems/pests/insects/sweat-bees-in-gardens.htm
Next will be to try insecticides. Here are a couple of articles that will help:
https://www.gardeningknowhow.com/special/organic/what-are-organic-pesticides.htm
https:/c/www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm