Q.How do you get rid of pesky flies around lemon tree
Flies swarm around the lemon tree and make it difficult for entertaining. Any suggestions?
First, make sure there are no fallen fruit on the ground around the tree.
You can try planting some flowers and herbs that are known to repel insects. This article will give you some ideas: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/repelling-bad-bugs-with-plants.htm
Also there are tons of DIY fly traps on the internet; here's one: http://snapguide.com/guides/make-an-easy-homemade-house-fly-trap/