Crawling Insects can carry and spread disease. Certain infestations such as Cockroach infestations are among the most serious insect infestations in British homes. Another problem can be Flying Insects which can have a nasty sting or bite, making them more difficult to live with than others. Other types of Flying Insects can leave holes in your favourite garments or cause untold damage to the stems and leaves of your most treasured plants. Therefore steps to control these flying pests must be taken at the first sign of an infestation.