The Association of Economic Biologists 



President 



Professor NEWSTEAD, F.R.S. 



Vice-Presidents 



Professor CARPENTER, M.R.I. A. 



Professor HICKSON, F.R.S. 



R. STEWART MacDOUGALL, D.Sc. 



Sir PATRICK MANSON, K.C.M.G., F.R.S. 



A. E. SHIPLEY, D.Sc, F.R.S. 



Council 



R. S. BAGNALL Prof. P. GROOM, D.Sc. 



S. E. CHANDLER, D.Sc. A. D. IMMS, D.Sc. 



F. J. CHITTENDEN Prof. J. H. PRIESTLEY 



E. E. GREEN A. G. L. ROGERS 



Hon. Treasurer 



J. C. F. FRYER, Esq., 



Craven House, 



Northumberland Avenue 



Hon. Secretary 



Professor H. M. LEFROY, 



Acton Lodge, 



Brentford 



CONTENTS OF Vol. I, No. 2 



PAOX 



1. Preliminary Notes on Damage to Apples by Capsid Bugs. By 



J. C. F. Fryer. (Plates IX and X) 107 



2. The International Phytopathological Conference, 1914. By 



A. G. L. Rogers 113 



3. The Host Plants and Habits of Aphis rumicis Linn., with some 



Observations on the Migration of, and Infestation of, Plants by 

 Aphides. By J. Davidson 118 



4. Some Observations on the Life-history and Bionomics of the 



Knapweed Gall-fly Urophora solstitialis Linn. By J. T. 

 Wadsworth. (Plates XI and XII and 1 Text-figure) . 142 

 6. A Braconid Parasite on the Pine Weevil, Hylobius abietis. By 



J. W. MUNRO. (With 4 Text-figures) 170 



6. Observations on the Life-history of the American Gooseberry- 



Mildew (Sphaerotheca mors-uvae (Schwein.) Berk.). By 



E. S. Salmon 177 



7. PoUto Diseases. By A. S. Home. (With 8 Text-figures) . 183 



8. A Note on Celery Leaf-Spot Disease. By F. J. Chittenden. 204 



9. Notes 207 



