CONTENTS 



PAGE 



Historical 1 



Distribution ; 2 



Description 2 



Adult beetle 2 



Egg 4 



Larva 4 



Pupa 5 



Life history and habits 5 



Character of injury and extent of damage 9 



Hosts 15 



Natural checks on multiplication 15 



Artificial control 17 



Banding 17 



Summer spraying with arsenicals 19 



The repellent effect of fungicides 19 



Supplementary applications of arsenical sprays 20 



Spraying both the upper and lower leaf-surface vs. spraying the 



upper surface only 20 



Tests of different poison formulae 20 



Early summer application of the arsenical 21 



The residual effect of summer spraying with arsenicals 23 



Summary on summer spraying with arsenicals 24 



Summer applications of contact insecticides 24 



Lasher's soap 24 



Nicotine sulphate liquid 25 



Kerosene emulsion 25 



Dusting with nicotine 26 



Summary on summer applications of contact insecticides 27 



Destroying the beetles in hibernation 27 



Parad ichlorobenzene 27 



Hydrated lime 27 



Fuel oil 27 



Poisoned bran mash 28 



Spraying the trash under the trees with a solution of potassium 



ferrocyanide 28 



Spraying the trash with other materials 28 



Summary concerning measures, other than burning, for destroying 



the beetle in hibernation 30 



Burning in hibernation 30 



Without use of blow torch 30 



With blow torch 30 



Summary on burning in hibernation 32 



Cultivation 34 



General summary 36 



