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The oyster-shell scale and the scurfy scale


Author:
Quaintance, A. L. (Altus Lacy) and Sasscer, E. R. (Ernest Ralph)
Source:
USDA
Year:
1916
Subject:
Oyster-shell scale, Scurfy scale, fruit trees, orchards, sulfur, street trees, shade trees, shrubs, scale insects, horticultural oils, insecticidal soaps, plant pests, spraying, ornamental trees, and life cycle (organisms)
Language:
English
Publisher:
U.S. Dept. of Agriculture
Series:
Farmers' bulletin (United States. Department of Agriculture) ; no. 723
Collection:
Organic Roots Collection
Permanent URL:
http://handle.nal.usda.gov/10113/33649