CONTENTS. 5 



Department Bulletin No. 484. — Control op the Gipsy Moth by Forest 

 Management: 



Part I. The Gipsy Moth in Woods: • •• Page. 



Introduction 1 



Behavior of the gipsy moth in the woods 2 



Composition and condition of woods in infested territory 4 



Feeding habits of gipsy-moth caterpillars 



Precautions needed 10 



Application of food-plant data to individual spe: ies 11 



Other measures in need of attention L5 



Recommendations 16 



Part II. Management of Typical Woodlots Infested With the Gipsy Moth 

 in the White-pine Region: 



Susceptibility to gipsy-moth attack as a basis of management 17 



Other fa°tors in management for moth control 18 



Some controlling factors in management 18 



Trees which control 19 



Typical stands 28 



Conclusions 48 



Appendix 51 



Department Bulletin No. 485. — Apples: Production Estimates and 

 Important Commercial Districts and Varieties: 



Statistic al estimates of varieties 1 



Important centers or areas of apple production 8 



Estimated relative proportion of early and late apples In different States. . 43 



Estimated annual production, ]890 to 1916 44 



Department Bulletin No. 486.— Sugar-cane Culture for Sirup Pro- 

 duction in the United States: 



Introduction 1 



Geographic limits of the sugar-c ane industry in the United States 2 



The nature of the sugar-cane plant and methods of propagation 3 



Varieties of sugar cane 5 



Soil requirements 10 



Manurial requirements 11 



Time and manner of applic ation of f ertili zers 14 



Crop rotation 15 



Preparation of the land 15 



Planting 16 



Cultivating the c ane 21 



Harvesting 24 



Yield, of cane, sugar, and sirup 27 



Storing cane for planting 29 



Insect pests and diseases of cane 31 



Some business considerations in connexion with the sugar-cane and sirup 



industry 33 



Utilization of by-products 34 



Department Bulletin No. 487. — Judging Horses as a Subject of 

 Instruction in Secondary Schools: 



Introduction 1 



Teaching the judging of horses 1 



Classroom dis: ussion .' 3 



Pra-tice judging 9 



Estimating the age of a horse 24 



Estimating matters of unsoundness 26 



Comparative judging 29 



Demonstrations 29 



Department Bulletin No. 488. — Experiments in the Disposal of Irri- 

 gated Crops Through the Use of Hogs: 



Introduction 1 



General description of the methods followed 2 



Alfalfa pasturing experiments 3 



Hogging corn 19 



Summarv 24 



