– Lemon balm.
– Lemon thyme.
– Small leaf basil.
– Pyrethrum Dalmatian.
against flies

– Tuberous chervil.
– Basil foot.
– Warbler mint.
against cockroaches

Bay leaves (to place in places frequented by these bugs).
Practical advice:

To avoid or limit an insect invasion, it is essential to eliminate all the factors that facilitate their development.

– Put food in airtight glass or plastic boxes.
– Clean the kitchen after meals.
– Remove leftover food and crumbs.
– Keep the trash can closed and empty it frequently.
– Wash the dishes after each meal.
– Do not leave standing dishwater.
– Clean work surfaces.
– Remove grease deposits from cooking appliances.– Never block the air outlets.– Never obstruct the air vents.– Regularly clean and ventilate the ventilation.
– Repair water leaks in a timely manner.