Cockroaches primarily come out for water, not food.
They can live a month without food, but only a week without water.
They thrive in all conditions, from deserts to the arctic.
Cockroaches are white for a short while immediately after shedding.
They spend over 75% of their time resting.
Here's How to Avoid Cockroaches
Seal all cracks and drain entrance locations: roaches can enter through sewage and drain lines that are not properly sealed.
Roaches can just as readily be found in clean locations. It is a common misconception that a roach infestation only occurs in a messy location, though it will be more likely if there is a greater abundance of food.
A clean kitchen is essential. Roaches will seek out humid locations with water or excessive moisture for egg laying. The kitchen sink should never have standing water with dishes.
Food particles are the main goal of a roach. They can feed on grease left on stoves or particles of food that fall behind appliances or furniture, no matter how clean the surrounding area is.
How to Get Rid of Cockroaches
Boric acid is a white powder which can help with the treatment of cockroaches. Sprinkling along baseboards and near entrance locations can help greatly.
Quite often this will not be enough. Professional fumigation is the best way to not only remove the problem, but to prevent reoccurrence.