. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Washington, D. C. April 13, 1922 RED CEDAR CHESTS AS PROTECTORS AGAINST MOTH DAMAGE. By E. A. Back, Entomologist in Charge of Stored Product Insect Investigations, Bureau of Entomology,' and Frank Rabak, Chemical Biologist, Drug, Poisonous, and Oil Plant Investigations, Bureau of Plant Industry. CONTENTS. Introductory Source, distribution, and description of red cedar Uses of red cedar Aroma of red cedar Cedar chest experiments Effect upon adult moths Effect upon eggs Page. Page. Cedar chest experiments—Continued. Effe
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Washington, D. C. April 13, 1922 RED CEDAR CHESTS AS PROTECTORS AGAINST MOTH DAMAGE. By E. A. Back, Entomologist in Charge of Stored Product Insect Investigations, Bureau of Entomology,' and Frank Rabak, Chemical Biologist, Drug, Poisonous, and Oil Plant Investigations, Bureau of Plant Industry. CONTENTS. Introductory Source, distribution, and description of red cedar Uses of red cedar Aroma of red cedar Cedar chest experiments Effect upon adult moths Effect upon eggs Page. Page. Cedar chest experiments—Continued. Effect upon larva? 7 Cedar chests do not kill one- half to full-grown larvae 8 Cedar chests kill young larva?- 9 Conclusions 11 Literature cited 14 INTRODUCTORY. Chests made of red cedar have the reputation of protecting cloth- ing stored in them from the ravages of clothes moths. There has been, however, much difference of opinion as to whether the supposed protection comes from the tightness of the chests which excludes moths, or from an inherent quality of the wood that actually kills moths accidentally placed in them with fabrics and furs. Consider- ing the centuries-old belief, entertained among so many peoples, that this odoriferous cedar affords protection against moth attack, surprisingly little has .been done to determine whether or not chests made of this wood are efficacious. Working with the southern or webbing clothes moth, Tineola biselliella Hummel (PI. II, A), the writers undertook ;i comprehensive study of the effect of red cedar chests upon adults, eggs, and larva: to ascertain whether or noi chests made of red cedar could be considered as adequate protection of clothing again I t hese insed . 80889*- 22. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Wa
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