But now, researchers say that cockroaches can develop a resistance to pesticides at an astonishingly fast pace. According to a study published in the journal Scientific Reports, some cockroaches can develop resistances to pesticides in a matter of months. “Broad resistance to nearly all available insecticide classes was identified at both study sites,” the study said. After a few cycles, the small group of cockroaches become resistant to whichever insecticide it was subjected to. “The unexpectedly poor performance of a majority of treatments in the field study suggested significant levels of starting resistance and/or selection for higher-level resistance in 4–6 months,” the study read.

Source: National Post July 03, 2019 19:52 UTC