CONTENTS. 



Departme]\-t Bulletin No. 442. — Possibllity of the Commekcial Pbo- Pago. 

 orcTioN OF Lemon-grass Oil in the United States. 



Soil and climatic requirements of lemon-grass 2 



Propagation . 3 



Fertilizers and cultivation 3 



Harvesting 4 



Distillation 6 



Varieties 7 



Factors affecting the yield of lemon-grass oil 8 



Factors affecting the citral content of lemon-grass oil 9 



Solubility of lemon-grass oil in alcohol 10 



Commercial possibilities 11 



T)epaktment BtT-LETiN No. 443. — The New Mexico Range Caterpillar 



AND ITS Control. 



General description of the range caterpillar 2 



Where the range caterpillar occurs 3 



Its economic importance and great abundance 3 



Crops and grasses attacked 4 



Character of the injury 4 



Life history of the range caterpillar 6 



Natural enemies of the range caterpillar 8 



A wilt or rot disease 9 



Destruction by hail 9 



History of the range caterpillar 10 



Control measures 11 



TDepartment Bl^lletin No. 444. — False Blossom of the Cultivated 



Cranberry. 



Description of fal.se blossom 1 



Origin and distribution 3 



Economic importance 4 



Cause 4 



Control 5 



Summary 5 



Department Bulletin No. 445. — The Navel Orange of Bahia with 



Notes on SoiiE Little-known Brazilian Fruits. 



Origin and history of the navel orange of Bahia 1 



Introduction of the Washington navel orange of Bahia into the 



United States 4 



<'ulfure of the navel orange in Bahia 7 



Citrus fruits of Bahia otlier than the navel orange ; 15 



Citrus fruits of the region around Rio de .Taneiro 16 



Miscellaneous fruits grown at Bahia 17 



S<»me Interesting fruits of Rio de .laneiro and vicinity 25 



Fruits of tiie highlands and serniarid regions of Minas Geraes 



and Bahia 31 



Department Bulletin No. 440. — The ('ost of I'koducing Appi.es in 



WENArciiKE Valley, Wash. 



Siiiiimary of results 2 



I )cs<-iifition of region 2 



.Mi'tjiod (»f survey 6 



Orchard maiifigeinenl 10 



HiindllMg lbe<roi) 26 



.Material costM .33 



Fixed coHtH 33 



