Apparently they've received a lot of complaints of counterfeit Advion tubes being sold on their platform. Two orders of mine that were delivered a year ago were refunded without even me asking. Walmart has them. Get it shipped from a mail aggregator like Shipbao.
Looks Trusu is no go. OTOH, Shipbao website is in Chinese; gotta look it from PC when I’m home.
Any other way to get it in Hong Kong ? I called JoyTime who have photo of Advion on their website just to get a no without listening fully
you can buy a bottle of Malathion and a hand sprayer form any large hardware store
The normal method os to mix as per the label and then spray aropund all edges of the room and skirtings and window sills as well as all entrance doors. Do your neighbours have the same problem?
Insects have their nervous system in their bellies
The Malathion once sprayed gives of an acetylcholine gas about 1cm off the sprayed area that attacks the nervous systems of the insects It can get into the cracks and release the vapour.
The Malathion vapour as well as killing insects that cross the sprayed area also repels them.
The insects walk around the edges of the room using the feelers on their heads in the dark If you see a roach in the middle of a room it is probably dying
Malathion will kill blattella germanica and the large periplaneta americana
If you still see roaches after this application then the whole area should be cleaned and vacuumed then sprayed. Close all windows and spray under closed doors then leave ther apartment for 3-4 hours.
In your case you need to also put mesh plugs to fit over all drain outlets and sinks. Pour (a lot) of bleach into the drains and sinks. This creates a chlorine gas that will kill insects and repel them also.
Curious, what ended up happening with your situation in the end?