Although small infestations can be removed by hand, larger infestations necessitate use of an insecticide.

A large infestation is currently present in at least 20 counties in Texas.

However, domesticated dogs do not usually build up these large infestations.

Small animals with large infestations can lose enough bodily fluid to fleas feeding that dehydration may result.

Due to their large size and slow development, large infestations of these insects are not common within houses.

Join Robert and Allison as they explore some of the world's largest - and strangest - infestations.

In 2004, West and North Africa experienced their largest infestation of locusts in more than 15 years.

This is effective for small patches of mold, but it's not sufficient to deal with larger infestations, which can become a serious health hazard.

Federal officials said yesterday that it was part of a larger infestation in the borough.

The plant has a tendency to form large, impenetrable clumps and the spines on the stems make control of large infestations difficult.