The presence of psocids is merely a nuisance because the pests do not harm humans or pets and do not bite. Large populations usually indicate an underlying mold or moisture problem. When homeowners spot them near stored food in pantries, the pests are an indicator of food spoilage.

What are psocids attracted to?

Psocids tend to be attracted to higher moisture grain and areas in grain with higher temperatures.

Do Booklice bite humans?

BOOKLICE---Booklice or (psocids) are small colorless insects that infest books, paper, or old foodstuff. ... Book lice do not bite, but they can be numerous in humid situations and some people may think they bite. Air and sunlight are the best cures for book lice, but short term control can be had with a pyrethrum aerosol.