Outdoors, weevils can kill garden plants. Indoors, the pests are more of a nuisance than a danger. Weevils contaminate infested food with their feces and cast skins, causing more damage than they eat. So, an infestation may render entire packages or pantries of food inedible. Stored product weevils do not bite and they do not cause damage to dry, decay-free wood inside homes.