PILLBUGS AND SOWBUGS
Sowbugs and pillbugs
are about 1/2 inch long, dark gray and oval. Sowbugs are flattened and
have two tail-like structures on the rear end of the body that pillbugs
do not have. Sowbugs and pillbugs are small animals more closely related
to lobsters than to insects. Although sowbugs resemble pillbugs (roly-polies),
sowbugs are incapable of rolling up into a ball.
A
female sowbug or pillbug carries her eggs in a pouch for several weeks
until they hatch. The young remain in the pouch for a time. About 50 young
develop in each brood.
Sowbugs and pillbugs feed on decaying vegetation. They breathe by means of gills and live under vegetable debris and other objects lying on damp ground. They often get into damp basements and crawl spaces, but they do no structural damage. They may infest house plants where they occasionally damage roots. Large numbers of sowbugs or pillbugs in a basement or crawling in the upper part of a house usually mean an abundant number outside.
Although primarily scavengers, during wet weather, sowbugs and pillbugs
may come indoors and seek refuge under and in potted plants. Occasionally,
sowbugs and pillbugs feed on the roots and tender portions of vegetable
and ornamental plant seedlings.
Treatments should be made to and near foundation walls, around and beneath
door steps and porches, subfloor crawl spaces, damp basements and similar areas
immediately adjacent to the building. The outdoor application of chemicals should
extend to at least 10 feet around the structure being protected. Any of the
outdoor lawn and garden products labeled for these arthropods or one of the
following chemicals may be used.
| Pesticide | (Trade Name) | Formulation |
|---|---|---|
| acephate | (Orthene) | 75% soluble powder |
| cyfluthrin | (Decathlon) | 20% wettable powder |
| cyfluthrin | (Tempo 2) | 24.3% emulsifiable concentrate |
| bifenthrin | (Talstar) | 10% wettable powder |
| carbaryl | (Sevin) | various |
Many "All Purpose" insecticides off the shelf are effective and suitable for home use. Check the label!
Published by North Carolina Cooperative Extension Service
Distributed in furtherance of the Acts of Congress of May 8 and June 30, 1914. Employment and program opportunities are offered to all people regardless of race, color, national origin, sex, age, or disability. North Carolina State University at Raleigh, North Carolina A&T State University, U.S. Department of Agriculture, and local governments cooperating.
ENT/ort-11
July 1994 (Revised) May 1997
Web page last reviewed January, 2008 by the webperson.