One aspect of these articles about no bugs or a few bugs is it makes it seem like chemical sprays work. The consensus is they don't, but a fool will listen to some salesman trying to sell a chemical and buy them. In cases where 2 bedbugs were already killed by the tenant or staff, it makes it look like chemical sprays work. From seeing what goes on, and reading up on the internet, it is clear that all or most do not work.
So it is false hope for people who have serious infestations.
What needs to be done it that all buildings with major infestations need to be seriously cleaned and redone, at times all furniture in an apartment needs to either be steamed or thrown out.
