'>; 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY— BULLETIN NO. 80. 



~— in' J,,, L _ '_ r _ 



L. O. HOWARD, Entomologist and Chief of Bureau. j <& L% M 



PAPERS ON DECIDUOUS FRUIT INSECTS 



AND INSECTICIDES 



I 





I. THE CODLING MOTH IN THE OZARKS. 



By E. L. JENNE, Engaged in Deciduous Fruit Jnsect Investigations. 



II. THE CIGAR CASE-BEARER. : : 



By A. G. HAMMAR, Engaged in Deciduous Fruit Insect Investigations. 



III. ADDITIONAL OBSERVATIONS ON THE LESSER APPLE WORM. 



By S. W. FOSTER and P. R. JONES, Engaged in Deciduous Fruit Insect Investigations. 



IV. THE PEAR THRIPS AND ITS CONTROL. 



By DUDLEY MOULTON, Engaged in Deciduous Fruit Insect Investigations. 



V. ON THE NUT-FEEDING HABITS OF THE CODLING MOTH. 



By S. W. FOSTER, Engaged in Deciduous Fruit Insect Investigations. 



VI. LIFE HISTORY OF THE CODLING MOTH IN NORTHWESTERN PENNSYLVANIA. 



By A. G. HAMMAR, Engaged in Deciduous Fruit Insect Investigations. 



VII (REVISED). THE ONE-SPRAY METHOD IN THE CONTROL OF THE CODLING 

 MOTH AND THE PLUM CURCULIO. 



By A. L. QUAINTANCE, In Charge of Deciduous Fruit Insect Investigations, 



AND 



E. L. JENNE, E. W. SCOTT, AND R. W. BRAUCHER, j| %* 



Engaged in Deciduous Fruit Insect Investigations. 



VIII. TESTS OF SPRAYS AGAINST THE EUROPEAN FRUIT LECANIUM AND THE 

 EUROPEAN PEAR SCALE. 



By P. R. JONES, Engaged in Deciduous Fruit Insect Investigations. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE, 

 1912. 



