The procedure is simple — place the heat-proof appliance in an oven, and after several hours at 150° F, the roaches will be dead. Cold can also be used to kill cockroaches, but it takes a prolonged exposure to low temperatures to kill egg cases.
Temperatures between 15 and Zero degrees Fahrenheit will kill a cockroach, and they cannot breed at temperatures below 40 degrees. So, once temperatures start to drop, roaches look for a warm place to hide.
Heat can be used to kill every type of cockroach and their eggs. Additionally, heat can kill bacteria and viruses caused by cockroach waste.
Roach eggs are also resilient to temperature fluctuations. Instead of killing them, your dryer may delay the hatching process. To kill the eggs, you'll need to expose them to high heat to prevent them from hatching at a later date.
Even though roaches need water to survive, they can also drown. Cockroaches are not aquatic insects and laying eggs in water would simply kill their babies.
Contrary to what some may believe, cockroach egg cases can be seen with the naked eye. The egg cases are usually reddish-brown to dark-brown in colour and range from 5 to 13 mm long depending on the type of cockroach.
Borax is a readily-available laundry product that's excellent for killing roaches. For best results, combine equal parts borax and white table sugar. Dust the mixture any place you've seen roach activity. When the roaches consume the borax, it will dehydrate them and kill them rapidly.
Cold can also be used to kill cockroaches, but it takes a prolonged exposure to low temperatures to kill egg cases. Appliances or furniture can be left in a garage when temperatures are below 0o F for several days.
How Long Does it Take Cockroach Eggs to Hatch? Immature cockroaches will emerge from the ootheca within 24 to 38 days.
They will die within an hour if exposed to a temperature below 14 degrees Fahrenheit as well. They cannot tolerate much heat either. At a temperature of 50 degrees, only half of the cockroaches survived, when exposed for two weeks. These surviving insects could live for more than four days.
The hot temperatures will kill bugs and eggs that are living on the surface of the furniture. Steam can also kill bed bugs that are living about 2 inches in crevices.
Fumigation is only used in the most extreme circumstances. The gasses and chemicals used during the fumigation process are strong enough to kill cockroach eggs. Fumigators know where cockroaches hide their eggs. The reality is that killing cockroach eggs is vital as the infestation would continue once the eggs hatch.
Winter can be a difficult time for cockroaches. While they are adapted to thrive in warm temperatures, these cold-blooded pests cannot survive environments that are too hot or too cold.
Roaches can thrive in cold or hot cars. As long as the temperature doesn't exceed 120 degrees or drop below 15 degrees, they will be fine. The best ways to remove roaches are with natural pesticides, such as Diatomaceous earth and boric acid.
The refrigerator houses all of your favorite foods and drinks, but they also house one thing you never want to see in your home — cockroaches! Between the humidity near the fans and motor, and the food crumbs that drop to the floor, your refrigerator is the perfect place to house a cockroach infestation.
Cockroaches will invade your storage unit if allowed. Roaches are never welcome pests anywhere. While the little bugs are usually attracted to locations that have food laying around, they can also infest your storage unit, seeking water and warmth — especially if your storage unit is heated.
However, people have reported cockroaches coming back to life sometime after getting frozen solid. This can happen once the creatures begin to thaw out. Extreme temperatures may freeze their exoskeleton but not their core.
At the chilly temperature of 23˚F, 50% of German cockroaches die within 10 hours. At 14˚F, 50% die within the first hour. German cockroaches suffer for their evolutionary past.
Boric acid is one of the best home remedies to get rid of roaches naturally. Mix equal amounts of boric acid, flour, and sugar to make a dough. Set balls of dough around the home where cockroaches can feed on it. The flour and sugar will attract the roaches while the boric acid will kill them.
How can I get rid of roaches fast? The best way to get rid of roaches fast is to sanitize your home, eliminate hiding spots and stagnant water, store food in airtight containers, and use glue strips, bait, boric acid, or liquid concentrates.
Can cockroach eggs spread around or do they stick to surfaces? The roaches ootheca isn't sticky and won't get attached to your clothes, walls or any type of surface. That makes them quite easy to clean, but the downside is that you are going to have a difficult time finding them in the first place.
Brown-Banded Cockroach
These lay around 16 eggs per ootheca. The female carries the ootheca with her for one day or two. Then it hides the capsule somewhere safe, like under a piece of furniture, on a wall corner or a rough surface, mainly cardboard. The gestation period lasts about 50 days.
Life cycle of cockroaches
Depending on the species, an egg case contains between 16 - 50 eggs. Eggs hatch into young cockroaches called nymphs, that are more numerous than adults.
If the egg case is not split open but has dents or depressions in it, it means the eggs or nymphs inside have dried out and hatching is unlikely. But if the egg case is not split and looks plump and full, it's probably ready to hatch.