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Sp341-S-Head Lice, The University Of Tennessee Agricultural Extension Service

Insects, Pests, Plant Diseases and Weeds

In the United States, approximately 10 – 12 million people, mostly children, are infested annually with head lice, Pediculus humanus capitis DeGeer. The first indication of an infestation is the itching and scratching caused by these bloodsucking insects. Examination of the hair and scalp will usually reveal the white or grayish crawling forms (about the size of a sesame seed) and yellowish- white eggs (nits) attached to the hair shafts close to the scalp.

Lice are usually transferred by the sharing of combs, brushes, hats or bedding, or resting one’s head on upholstered furniture or pillows recently used by an …