CONTENTS 



Depaktment BiTLLETiN No. 426. — SuGAE Pine. Page. 



Importance of sugar pine 1 



Geographical and commercial range 2 



Habit and root system 3 



Bark, leaves, flowers, and seed 3 



Size and longevity 4 



Susceptibility to injury and diseases 4 



Silvical requirements 7 



Reproduction 8 



Forest types 9 



The wood 10 



Logging 12 



Milling 13 



Values and grades of lumber 16 



Markets 20 



Uses 20 



Stumpage prices 23 



Growth and yield , 24 



Management 30 



Management of private timberlands 3.5 



Depaetmext Bulletin No. 427. — The Potato Tubek Moth. 



Historical 1 



Distribution 2 



Possible origin 3 



Nature of injury . 4 



Economic importance 6 



Classification and synonymy 9 



Description 9 



Food plants 14 



Life history and habits 15 



Natural enemies and checks 32 



Artificial control 48 



Summary 51 



Department Bulletin No. 428. — Medicago Falcata, a Yellow-floweked 

 Alfalfa. 



Introduction of medicago falcata into the United States 2 



Natural distribution 5 



Climatic and soil requirements 7 



Botanical histf)ry 8 



Botanifiil descriptirm and relationship i. 13 



Agricultural history 33 



Agronomic <-harnft('rlstics 35 



Cultural investigations 51 



Possildlities in selection and hybridization 56 



Prr-senf agronomic status 61 



Suirimary 63 



Depabtme.nt Butxetin No. 429. — Life History of the Codling Moth in 

 THE Pecos Valley, N. Mex. 



IX'fiiiltion of terms used 2 



Seasonal-liistory studi<'s of 1912 3 



Seasonal-history studies of 1913 34 



Summary 87 



