How to solve bug problem on the deck?

[Argo]

I live in the city and for whatever reason I have bug problem on my deck. I keep it fairly clean, but there are all sorts of flies and mosquitos outside. The second I open my deck door they all fly in (no nets).

I toyed with the idea of getting a bug zapper, but since I'm on 15th floor this doesn't seem too practical. Are there any other options?

 

[ballmode]

Remove deck from yard.

 

[ballmode]

correction, chop deck off and let 14th floor neighbor take care of it

 

[Sluggo]

x + y = solution

 

[Baked]

Find pool of water that's collecting and dry it. Are you on the top floor? Maybe the water reservoir on the roof has a hole in it.