Cockroaches are really becoming near-impossible to kill as they are building up defenses against any insecticides sprayed around the house to kill them. A New Research has discovered that German Cockroaches in particular – the common types in the world now have cross-resistance to different bug sprays.
Discovering that insect resistance had increased up to a sixfold within a generation, they were unable to reduce the numbers of cockroach within their six-month study.
Nevertheless, female Cockroaches generate about 50 offsprings within their 3-month reproductive cycle. Published in the Journal Scientific Reports, the study was hinged on the species Blattella Germanica, which can be seen in almost everybody’s house in the world.
Reacting to the study, Purdue University, Professor Michael Scharf said: ‘This is a previously unrealized challenge in cockroaches. Cockroaches developing resistance to multiple classes of insecticides at once will make controlling these pests almost impossible with chemicals alone.’
While eradicators had always mixed spray of different types to ensure they’re eliminating cockroaches, Scharf added: “If you have the ability to test the roaches first and pick an insecticide that has low resistance, that ups the odds. But even then, we had trouble controlling populations.”
“Some of these methods are more expensive than using only insecticides, but if those insecticides aren’t going to control or eliminate a population, you’re just throwing money away,’ Scharf further explained.