We have test results for three types of cockroach control:
- 15 surface sprays
- six baits/traps, and
- three knockdown sprays.
First, you'll need to find out which type of cockroach you're trying to get rid of, then look for the best-performing product on test.
Most people would agree that cockroaches are very unpleasant. They’re also very adaptable, but they thrive in warm, dark areas, and we often find them lurking in such areas in our homes. There are more than 3000 cockroach species worldwide, but the most common species in Australia are the American and German cockroaches.
American cockroaches are large and ubiquitous, while the smaller German cockroaches mainly live inside. Both are not only a nuisance, but can also carry diseases, not to mention produce a horrible odour if they reach infestation proportions. They breed rapidly and are highly resilient, so it’s important to take preventative measures to deter these unwelcome insects.
Unfortunately, it’s unlikely you’ll ever be completely rid of cockroaches in your home, but there are ways you can control them.
For chemical control that knocks these pests on their backs, there’s a wide variety of insecticides on the market. In our test of three types of cockroach control we found that, in some cases, their effectiveness depends on which species you’re targeting.
- Surface sprays provide more preventative, long-term control. They’re best applied to cracks, crevices and voids as well as inside rubbish bins, cupboards, drawers and shelves. Don’t treat surfaces with surface spray where food is handled or that get washed regularly. If treating storage areas, ensure food is sealed and removed first and only replace it once the treatment has dried.
- Baits and traps also provide long-term control, but can be more effective if teamed with a surface spray. Place them in corners and along edges where cockroaches travel, but don’t contaminate them with surface or knockdown sprays as this will repel the cockroaches and make the baits/traps ineffective.
- Knockdown sprays target individual cockroaches and provide a quick response. If the response isn't quick, it could be the difference between being able to collect and dispose of the cockroach and the cockroach scurrying away to an area you won’t be able to see or reach.