Sampling for soil insect pests
Subtitle: an inexpensive way to build a berlese funnel
By: prepared by Ralph E. Berry, Glenn Fisher, and Elson Shields.
Contributors: Fisher, Glenn C.; Shields, Elson Jay.; Oregon State University. Extension Service.
Series: Extension circular / Oregon State University Extension Service -- 1079.; Extension circular (Oregon State University. Extension Service) -- 1079.
Publisher: Oregon State University Extension Service
Published: 1981
Place of publication: Corvallis, Or
Language: eng
Subjects: Insect traps.; Soil invertebrates -- Collection and preservation -- Equipment and supplies.
Notes: Title from cover.

"April 1981."