How to identify and control the walnut caterpillar
By: Marion Farris, James E. Appleby
Contributors: Appleby, James E., joint author; North Central Forest Experiment Station (Saint Paul, Minn.); United States. Forest Service
Publisher: Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Published: 1978
Place of publication: St. Paul, Minn
Language: eng
Subjects: Caterpillars; Eastern black walnut -- Diseases and pests -- United States