30 PRITECTION OF PLANTS — 1923-24 



16. — The Apple Bud-moths and their Control in Nova-Scotia. — Bv G. E. Sanders and A. G. 



Dustan. 1919. 

 17.— The Fruit worms of the apple in Nova Scotia. — -By G. E. Sanders and A. G. Dustan. 



1919. 

 18. — Studies in North America Cleorini (Geometridae). — By J. H. McDunnough, 1920. 

 19.— The Natural Control of the Fall Webworm in Canada.— By J. D. Tothill. 1922. 

 20.- — ^The Morphology and Biology of a Canadian Cattle-infesting Black Fly.- — -By A. E. 



Cameron. 1922. 

 21. — Insects affecting Greenhouse Plants.- — ^By Arthur Gibson and W. A. Ross. 1922. 

 22. — Biological Notes on Parasites of Prairie Cutworms. — -By E. H. Strickland. 1923. 

 23.- — North American Cerambycid Larvae. — By F. C. Craighead. 1923. 

 24. — Insects affecting Live Stock.- — -By S. Hadwen. 1923. 



Circulars: 



No. 3.— The Chinch Bug in Ontario.— By H. F. Hudson. 1914. 



4. — -Instructions to Importers of Trees, Plants and other Nursery Stock into Canada. — ■ 



By C. G. Hewitt. 1914. 

 5. — -The Control of Locusts in Eastern Canada.- — -By Arthur Gibson. 1915. 

 6. — -The Control of Cutworms in the Prairie Provinces. ^ — ^By. E. H. Strickland. 1916. 

 7. — Results from Spraying in Nova Soctia. — By G. E. Sanders and W. H. Brittain. 1916. 

 8. — Spraying for Insects affecting apple orchards in Nova Scotia. By G. E. Sanders and 



W. H. Brittain. 1916. 

 9.^ — -Common Garden Insects and their controI.^ — ^By Arthur Gibson. 1917. Reprinted 



in 1921. 

 10.— Regulations under the Destructive Insect and Pest Act. By C. G. Hewitt. 1917. 

 11.— The White-marked Tussock Moth and Its Control.— By J. M. Swaine and G. E. San- 

 ders. 1918. 

 12. — -Directions for Collecting and Preserving Insects. — By J. H. McDunnough. 1919. 

 Reprinted as Pamphlet No. 14, N. S., Dept. of Agric, 1922; Revised Edition, 1923. 

 13. — -Locust Control in the Prairie Provinces. — -By Norman Criddle. 1920. 

 14. — Boring Caterpillars Affecting corn and other crops and which are liable to be mistaken 



for the European Corn Borer. — By Arthur Gibson. 1920. 

 15. — The Control of Bark-beetle outbreaks in British Columbia. — -By Ralph Hopping. 1921. 



Crop Protection Leaflets : 



No. 1.— Protection of Crops.- By C. G. Hewitt. 1917. 



2. — Prepare to Protect your crops next Season. — -By C. G. Hewitt. 1917. 



3. — Cutworms and Their Control. — -By Arthur Gibson. 1918. Reprinted 1919. 



4.- — -Root Maggots and Their Control. — By Arthur Gibson. 1918. 



5.- — -Prevent White Grub Injury. — ^By Arthur Gibson. 1918. 



6.^ — -How to Control Locusts or Grasshoppers. — By Arthur Gibson and Norman Criddle, 



1918. Reprinted, 1919. 

 7.— Rats and Mice.— By C. G. Hewitt. 1918. 

 8. — Aphids or Plant Lice. — By W. A. Ross. 1918. Enlarged and reprinted 1923, as 



Pamphlet No. 31, N.S., Department of Agriculture. 

 9.— The Pea Weevil.— By Arthur Gibson. 1918. 

 10. — Arsenate of Lime. — -By G. E. Sanders. 1918. 

 11. — The date on which it is Safe to reseed fields in the Prairie Provinces after they have 



been devastated by Cutworms. — By E. H. Strickland. 1921. 

 12. — The Beet Webworm.— By E. H. Strickland, and N. Criddle 1919. Reprinted as Circular 



No. 14, Department of Agriculture, 1923. 

 13. — The European Corn Borer. — -By Arthur Gibson and L. S. McLaine. 1920. 

 14. — The Control of Grasshoppers. — ^By Norman Criddle and A. V. Mitchener. 1921. 

 15. — The Pale Western Cutworm.— By H. L. Seamans and E. H. Strickland. 1921. 

 16. — The Control of the European Corn Borer. — -By H. G. Crawford and J. G. Spencer. 1921. 



