LIBRARY I 
WA TE PLAWT BOAR* 
REPORT OF THE CHIEF OF THE BUREAU OF ENTO- 
MOLOGY AND PLANT QUARANTINE, 1936 
Hon. 
United States Department of Agriculti i;i :. 
Bureau of Entomology and Plant Quarantine, 
Washington^ D. C, September 15, 1936. 
Henry A. Wallace, 
Secretary of Agriculture. 
Dear Mr. Secretary: I submit herewith a report of the work of the 
Bureau of Entomology and Plant Quarantine for the fiscal year ended 
June 30, 1936. 
Sincerely yours, 
Lee A. Strong, Chief. 
contents 
Page 
Introduction 1 
Publications and editorial work 2 
Library 2 
Insect pest survey and information 3 
Fruit insect investigations 3 
Fruitfly investigations 9 
Mexican fruitfly control. 10 
West Indian fruitfly and citrus blackfly 15 
Japanese beetle quarantine and control . _ 16 
■SPhony peach disease control 23 
Control of peach mosaic disease 24 
Citrus canker eradication 25 
Date scale eradication ^ 25 
Insects affecting forest and shade trees. _ 27 
Gypsy moth and brown-tail moth control 29 
Gypsy moth and brown-tail moth quarantine 
enforcement... 35 
Dutch elm disease eradication , 37 
White pine blister rust control 42 
Enforcement of the white pine blister rust 
quarantine.. 45 
Woodgate rust quarantine 46 
Cereal and forage insect investigations 46 
Page 
European corn borer inspection and certifica- 
tion 52 
Black stem rust quarantine enforcement 54 
Barberry eradication 54 
Truck crop and garden insect investigations.. 57 
Cotton insect investigations 63 
Pink bollworm control 68 
Thurberia weevil control... 73 
Bee culture _. 74 
Investigations of insects affecting man and 
animals 75 
Screwworm control 79 
Insect identification 82 
Foreign parasite introduction 82 
Control investigations 85 
Insecticide investigations 87 
Transit inspection 91 
Terminal inspection of mail shipments 92 
Convictions and penalties imposed for viola- 
tions of the Plant Quarantine Act 92 
Foreign plant quarantines.. 93 
Certification for export.. 121 
INTRODUCTION 
The organization of the Bureau's activities is continued along substantially the 
same lines as that developed in connection with the reorganization authorized by 
the Secretary and approved by Congress for the fiscal year V.VA~). 0. F. W. Mueso- 
beck was designated leader of the Division of Insect Identification, replacing 
Harold Morrison, who is devoting his full time to the identification and classi- 
fication of scale insects. The investigational work on Japanese and Asiatic 
beetles previously treated as a division, with field headquarters at Moorestown, 
N. J., has been made a part of the work of the Division of Fruit [nseel Investi- 
gations. To coordinate and provide more effective direction o[' the various 
studies on fruitflies, which are potential pests of the United States, the investi- 
gational work on fruitfles carried on at various points outside the continental 
United States was brought together, effective December 10, 1935, to form the 
Division of Fruitfly Investigations, with A. C. Baker in charge and headquar- 
ters at Mexico City, Mexico. The work on the control of the screwworm was 
recognized as a separate field division, effective March 1.1. 1936, with W. E. Dove 
101897—36 1 
Qirs- 
