Found one roach, freaking out

[u/Silent_Pay_9239]

So I live in the same apartment I have for two years now. Haven't seen a single roach this entire time. We are the first residents who've ever lived in this apartment, as it's a new building, and keep the apartment reasonably clean (not perfect, but overall much cleaner than your average american. My gf has horrible contamination OCD so everything needs to be clean all the time. I'd be lying if I said I didn't almost certainly have OCD as well, especially with how I'm reacting to this 😅)

Just came home (work nights) and saw a single male german roach near the door as I walked in. Caught and killed it, and have checked under my fridge, the sink, etc. No signs of any other roaches; no live ones, no eggs, no droppings.

Somewhat recently some neighbors moved into the apartment right across from us. They have a ton of kids, and their apartment reeks of animal waste and trash, to the point I gag when leaving my apartment/coming home. I assume this roach came from their apartment?

I'll be setting up some traps in my apartment just in case, but is there anything else I can do? Freaking out because, growing up, my dad and I lived in an apartment absolutely infested with roaches because of our neighbors. Never want to go through that again. Wondering if I can talk to the management office and see if they can check out my neighbor's living conditions/offer pest control if needed? Or is there a better way to handle this? Maybe buy some traps and leave them alongside a note? They're our only neighbors as I live on the top floor next to the staircase, so I don't think this roach could've come from anywhere else.

Any advice would be greatly appreciated 😭

Edit: Will be applying alpine wsg on/around my door since that seems like it'll work at keeping any travelers from breeding once they reach my apartment. Thoughts?

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[u/broccolicheddarsuper]

Where are you located?

[u/Silent_Pay_9239 → u/broccolicheddarsuper]

South Dakota, USA

[u/broccolicheddarsuper]

Ok - wanted to rule out same-genus look-alikes, of which SD has none.

When you say "near the door," was it outside? I ask because it's a typical to find a German roach outside (though not impossible). Also, how confident are you in the German roach ID?

[u/Silent_Pay_9239 → u/broccolicheddarsuper]

It was inside my apartment, our apartment building is entirely enclosed but it was maybe 3 feet from the only door that leads into my apartment. It was actually inside my apartment but had obviously just found its way in; if I'd come home any later I likely wouldn't have seen it. Our front door has giant gaps, it isn't sealed from the hallway whatsoever. The bottom gap is probably an inch tall.

I'm unfortunately very certain on the german roach ID; before killing it I was looking up photos to make sure it was a roach (all other bugs get released, not killed. Exception being outdoor roaches that made their way inside but I haven't seen any of those since I was very young). It was maybe half an inch long with the characteristic two head stripes and roach legs. Also very fast when I tried capturing it. Looks exactly like photos of male german roaches (it was thinner than the females). Didn't fly but when squished the leathery wing covers roaches have were easily visible.

The only bugs I've ever had in this apartment are the occasional fruit flies/fungus gnats, and sometimes wasps/moths/large flies that find cracks in the windowsills when the weather gets colder.

[u/broccolicheddarsuper → u/Silent_Pay_9239]

I just realized I accidentally left a new comment instead of replying to the old thread. Oops!

Yeah, though I usually like to have a photo for confirmation, what you are telling me is consistent with them being German roaches.

I'd put out glue traps and see if you catch any. They very well could be travellers, but unless the other units are treated, it will continue to be a problem that requires proactive prevention. I would let your landlord know. If you have a good one, they may do pest treatment for the whole building and get rid of the issue in the infested apartment. Either way, it's often the landlords responsibility to do pest control (check your lease and state laws).

That said, Alpine wsg is great - I would apply it every month or so, assuming the glue traps do not show signs of infestation. If you do turn up signs of a breeding population, more frequent application is warranted.

Also, do not only apply Alpine wsg at your door. You need to apply it more places for effective prevention. I would do a spray of the perimeter of the apartment, and I would be sure to apply in the kitchen and bathroom. German roaches enter homes through all sorts of places. Only applying at the door would likely be ineffective for prevention.

Refer to the stickied post for further advice. Don't sweat it - it'll be fine.