CONTENTS 



PAGE. 



ITALT : Plant Pest J,^ej;i6iation 130 



Japan : Notes on the i^il'e-history of Argyresikia conjugella . . 120 



Madagascab: GeraiiUs capitata ix\ie%iingFeach<^H .. .. 133 



Morocco : A List of Insect Pests of Cultivated Plant.< .. .. 121 



P.\XAMA ; Brassolis isthmia infesting Bananas. ... . . . . S5 



lh',:'>.)ON ! The Introduction of Coelostcrnn scahraki . . . . 120 



r;Hur> ESiA, SOTT'IHERK : Notes on Tobacco Pests 134 



llv&siA ; Measures against Insect Pests in the Don Region 102, 103, 



107, 108. 



IIussiA : Tlie Bionomics of Tenebroides tnavrUanicus . . 107, 108. 



Savitzekland : An Otxtbreak of Pieris on Cabbages . . . . 82 



Tonkin : Notes on Coffee and Bice Pests . ■ . . . . . . 1 1 1 



Trtnidab ! Insect Pests of Avocado . . . . . . . . . . 131 



'.rKiNiPAD ; Notes on Sugar-cane Froghoppers 131 



TfrNisiA: jSj\ Onihreak oi Dac^is ohae .. .... .. 83 



T :.S.A, : An Outbreak of Alahmna argillacea in Missouri , . . , 81 



I .S.A. : A Microlepidopterous Parasite of JEterm^s fci'w^i .. .. 81 



U.S.A.: Noics on I^?ioferM.8 cogtirtto.s in New Jersey .. .. 82 



U.S.A. : The Food-plants of Buprestis mridisuhiralis . . . . 82 



1 ' .S.A. : Handbook of Plant Disease and Pest Control in California 85 

 U.S.A. ; The Transmission of Curly Top of Sugar-Beet by Eutettix 



tenell'a . . . . . . .... . . . . . . 87 



X'.S.A. : The Eelation of Insects to the Dissemination of Cronartitlm 



rihk-ola . . . . . . . . . . . . . . • ■ 87 



U.S.A. : The Olive Insects of California 91 



U.S.A.: Precautions against Pj/musia ^wMlaWs in Ohio .. ..01,130 



lis. A. : Measures against Orioecfis asparagi in Ohio . . . . 02 



11. S.A. : Wheat Pests in Ohio in 1919 02 



U.S.A. : Measntes against Insect Pests in 1919 . . . . . . 93 



U.S.A. : The Bionomics and Control of Pyrawstn nuhilalis in New 



York . . . . 97 



U.S.A. ; A New Scale-Insect from California . . . . . . 112 



C.S.A. ; The Bionomics aoid Control of the Grape-vine Sphin.x 



Moth in California .. .. .. .. .. .. .. 113 



U.S.A. : Pests intercepted in Quarantine in California . . . . 114 



U.S.A.: Meastu-es against the Argentine Ant in California .. 114 



U.S.A. ; Notes on Pyrmista nuhilalis . . . . . . . . . . 116 



U.S.A. : The Bionomics of the Apple Grain Aphis (Bhopahsiplium 



pnmifoUae) .. .. .. .. .. .. .. .. 116 



TLS.A. ; The Bean Ladybird and its Control 1 19 



U.S.A.; Insect Pests of the American Larch .. .. .. 127 



U.S.A. ; Insect Enemies of Shade Trees and Ornamental Shrubs . . 128 



U.S.A.: Insect Pests in Colorado in 1918 .. 128 



U.S.A. : Measures against outbreaks of CirphU unipuncta in Ohio 129 



U.S.A. : Winter Work against Shade Tree Pests in Ohio . . . . 129 



U.S.A. : Measures against the Walnut Aphis in California . . 130 



U.S.A.: Insect Pests in New York .... .. .. .. 131 



U.S.A. : The Native Food-plant of the Camphor Thrips in Florida 134 



U.S.A. ; A New Pliysoihrips iroxn Oregon . . . . . . . . 135 



U.S.A. : Miscellaneous Pests in Washington . . , , . . 135 



West Indies : The Value of Toads against Insect Peste .. .. 108 



Zanzibar: Insects injurious to Economic Crops .. ., .. 118 



Insects damaging Lead and other Metal- work .. .. .. 81 



The Probable Cause of Injury from the Use of Calcitun and 



Magnesium Arsenates . . , . . . . , , . . . 85 



The 1 njurious Effects of Kerosene on Trees .. .. .. .. 87 



The BioclJmatic Law as applied to Entomological Research and 



Prtictice 87 



Tli< 3 bysical and Chemical Properties of Liquid Hydrocyanic Acid 89 



''"]'.> Use of E:xperimental Plots when studvinr:- Forest Insects , , 118 



'Utility of the Spray Gun .. ,, ' . 132 



ce and Fruit Growing (Review) .. .. .. .■ 133 



The Sterilisation of Soil with Steam .. ., ,, ,. .. 133 



