CONTENTS 



PAGE 



A Dosage Schedule for Citrus Fumigation with Liquid Hydrocyanic Acid 



R.S. Woglum 357 



Response of the Eggs of Aphis avenae Fabr. and Aphis pomi Deg, to Various 

 Sprays, Particularly Concentrated Lime-sulfur and Substitutes, Season 



of 1918-1919 Alvah Peterson 363 



Notes on the Pupae of the European Com Borer, Pyratista nubilalis and the 



Closely Related Pyrausta penitalis Ediia Mosher 387 



An Injurious Leaf-miner of the Honeysuckle C. R. Crosby and M. D. Leonard 389 



Hibernating Habits of Two Species of Ladybirds D. E. Fink 393 



Xanthonia villosula Melsh. Injuring Forest Trees W. H. Wellhouse 396 



Naphthalene vs. Chicken Lice W. S. Abbott 397 



The Depluming Mite of Chickens: Its Complete Eradication from a Flock 



with One Treatment H. P. Wood 402 



European Com Borer Conference W. E. Britton 405 



Scientific Notes 407 



Editorial 409 



Reviews 410 



Current Notes 411 



