A number of ways. They spread disease, Cockroaches and fleas and to major aggregate of Asthma, fleas do still spread the bubonic plague, (it still exists), general sanitation, not to mention that termites cause 5 billion dollars in property damage in the US every year.
They are helpful, because they can feed bugs on common household pests
they do this by spreading diseases and germs to to things and people
Cockroaches & rats are common household pests which spoil & damageour food and other articles
get
the answer is AMBER. the answer is AMBER.
Wayne S. Moore has written: 'Controlling household pests' -- subject(s): Control, Household pests
Eat other household pests.
household pests can be defined as living things found in a house or home that may cause destruction to the house or home and discomfort to the people living in the house or home
they reduce it
Eldon P. Savage has written: 'National household pesticide usage study, 1976-1977' -- subject(s): Control, Garden pests, Household pests, Pesticides
Bernice Lifton has written: 'Bug busters' -- subject(s): Control, Garden pests, Household pests
A household pest can be any insect that becomes a nuisance.