APPENDIX A 

 PUBLICATIONS ON INJURIOUS INSECTS 



THE following publications may be secured free of charge 

 by writing to the Secretary of Agriculture, Washington, 

 D. C., or to your Congressman or Senator, for those published 

 by the United States Department of Agriculture, and to the 

 several state agricultural experiment stations, whose post- 

 offices are given below, for those published by them. The 

 numbers are those used in parentheses ( ) in the text. 



Published by the U. S. Department of Agriculture 



1. The More Important Insect and Fungous Enemies of the Fruit 



and Foliage of the Apple. Farmers' Bulletin 492. 



2. The San Jose* Scale and Its Control. Farmers' Bulletin 650. 



3. The Oyster-shell Scale and the Scurfy Scale. Farmers' Bulle- 



tin 723. 



4. Orchard Barkbeetles and Pinhole Borers. Farmers' Bulletin 



763. 



5. The Aphides Affecting the Apple. Circular 81, Bureau of 



Entomology. 



6. The Oat Aphis. Bulletin of the U. S. Dept. Agriculture, No. 



112. 



7. The Pea Aphis. Circular 43, Bureau of Entomology. 



8. The Melon Aphis. Circular 80, Bureau of Entomology. 



9. The Apple-tree Tent Caterpillar. Farmers' Bulletin 662. 



10. The Principal Insects Affecting the Tobacco Plant. Farmers' 



Bulletin 120. 



11. The Colorado Potato Beetle. Circular 87, Bureau of Ento- 



mology. 



12. Arsenate of Lead as an Insecticide Against the Tobacco Horn- 



worms. Farmers' Bulletin 595. 

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