CONTENTS-conl. 



A New Aphid on Choke-Cherry and Grain in Maine 

 The Life-History and Control of Empoa rosae in U.S.A. 

 Kelation of Varieties of Grain to Hessian-fly Injury in U.S.A. 

 The Uses of Insect Galls for Commercial Purposes , . 

 Hemisarcoptea maluSf a Natuial Enemy of the Oyster-shell Scale 



in Canada . . 

 Parasites of Sugar-Cane Beetles in Queensland 

 Control of Insects infesting Stored Seed and Food Products in 



U.S.A. .... .. .. 



Sprays for the San Jos^ Scale in U.S. A 



liJotes on the Habits of Turnip Flea-Beetles in Britain 



New and Rare British Cecidomtidae. 



General Information for Spraying Orchards and Gardens in 



Virginia 



Cotton Pests and their Control in U.S.A 



Plutella maciilvpennis and its Control in S. Africa . . 



Reports on certain Plant Bugs connected with Cotton in St 



Vincent 

 The Control of Red Spider in California 

 Insect Pests intercepted in Quarantine in California 

 Toxicity of Volatile Organic Compounds to Insect Eggs 

 Weevils infesting Potatoes, Sweet Potatoes and Yams 

 Agricultural Pests in Canada . . . . . . 



Measures against Aphids in Canada . . 



Measures against the Parsnip Webworm in Canada 



Measures against Orchard Pests in Canada . . 



The Importation of Opius cancolor into Italy against Dacus oleae 



Forest Pests in Brazil 



Epicauta atomaria, a Vegetable Pest in Brazil 



The Loss due to Gydia pomonella in Sicily 



The Collection and Utilisation of Melolontha mehlontha in Switzer 



land . . 

 Objections to Light Traps as a Means of Controlling Insect Pests in 



Canada 

 Aphis saliceti and its Allies in N. America 

 Forest Pests in Britain . . 

 Measures against the Pine Weevil in Britain 

 Oryctes rhinoceros and its Control in the Philippines . . 

 Oylas formicarius infesting Sweet Potatoes in the Philippines 

 Oeratitis spp. injurious to Fruit Trees in South Africa 

 Parasites of the Larvae of Zygaena occitanica in France 

 Bark-beetles Infesting the Douglas Fir in North America . . 

 Insect Pests in Texas in 1916 . . 



Notes on the Rhinoceros Beetle, Oryctes rhinoceros, in Texas 

 New Species of Thrips from West Africa and India 

 Orchard Pests in Victoria 

 The Protection of Stored Grain in Australia . . 

 The Control of Bruchus pisorum in Holland , . 

 Eriosoma lanigerum in HoUand 

 The Establishment of Trichogramma minutum against Heliothis 



ohsoleta in Sumatra . . 

 A Report of the Conference on Helopeltis in Java . . 

 Olive Pests in Spain 

 Legislation against Hypera variabiUs in California . < 



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