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CONTENTS 



Africa : Notes on New Fruit-Flies . . 

 Africa, South : New Injurious Weevils 



PAGE 



263 

 264 



Precautions against Gydia pomonella in Packing 



Africa, South 



Sheds 

 Algeria : The Cultivation of Pyrethrum for Insecticides . . 

 America, North : A Revision of the Nearctic Termites . . 

 America, South : Miscellaneous Insects of Economic Importance 

 Argentina : The Bionomics and Control of Oeceticus platensis 

 Argentina : The Protection of Useful Birds 

 Australia : A Weevil infesting Citrus Roots in Queensland 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Austria 



Brazil : 



Brazil : 



Brazil : 



Canada : 



Canada : 



Canada : 



Canada : 



Ceylon : 



; Insect Pests infesting Vegetables. 



; The Bionomics of Eriocampoides limacina 



: Field Control of Aphids 



: Measures against Red Spider 



Measures against the Antler Moth 

 : The Control of Zabrus tenehroides 

 : Measures against Psyllids . . 



Notes on Incurvaria rubieUa 

 : Common Coccids and their Control 

 ; Measures against Anobium infesting Timber 



The Effect of Nicotine on Vine Moths 



Measures against Beetles infesting Rape. . 

 : Insects infesting Stored Food-Stuffs 



Observations on some injurious and useful Insects 

 : The Larvae of Flea-beetles of the Genus Phyllotreta 



The Occurrence of the Potato Psyllid, Aphalara nervosa 

 : Miscellaneous Garden Pests 

 : Notes on the Food-plants of Coleoptera . . 

 Notes on Cotton Pests , . 



Measures against Coleopterous Pests of Sugar-Cane 

 The Spread of leerya purchasi 



Notes on Aphid-destroying Syrphids 



The Outbreak of Locusts in 1919 



Notes on the Oyster-Shell Scale in Ontario 

 Notes on Sprays for Vegetable Pests 

 Insect Pests of Tea and other Crops in 1919 

 Tea Shot-hole Borer Investigations 



Plocaederus obesus, a serious enemy of the Kapok 



284 

 281 

 286 

 299 

 298 

 299 

 277 

 261 

 261 

 262 

 262 

 262 

 263 

 263 

 263 

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 264 

 276 

 287 

 288 

 288 

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 289 

 289 

 290 

 290 

 292 

 258 

 278, 316 



Ceylon 

 Cochin China; 



Tree .. 



Egypt : The Effect of Insect Pests on the Cotton Crop 

 Egypt : Treatment of Cotton in the Field against Attacks of Pink 



Bollworm 

 Egypt : Zeuzera pyrina infesting Quinces 

 Fiji : Measures against Cosmopolites sordidus 

 Fiji : Miscellaneous Insect Pests in 1918 

 Formosa : Notes on Timber-destroying Termites 

 France : The Occirrrence of Oeresa bubalus . . 



281 

 281 

 258 

 304 



273 



282 



282 

 282 

 296 

 297 

 301 

 260 



