HI LUU, thanks for your comment. but the answer is "yes." same as using Mosquito coil in your hourse can repel the insects effectively. Planting so many plants in the city would achieve the same effect.
Hi Lori Eizenhöfer, Thanks for your comment. As I metioned in my article, these kinds of plants can emit some odor or special chemicals to the air, then the insects will be driven away coz they can not live in this kind environment. Thus, if we grow enough plants, it should work.