CONTEXTS. 



Page. 



Insect onpmies 5 



Grape root- worm 6 



Distribution and destructiveness 6 



Description and life history 7 



Natural enemies 10 



Treatment 10 



Grape berry moth 12 



Distribution and destructiveness 12 



Description and life history .• . . 13 



Treatment 14 



( Irape curculio 16 



Distribution and destructiveness 16 



Life history and habits 17 



Treatment - 18 



Grape leaf-hopper 19 



Description and life history 19 



Remedial measures 21 



Grape leaf-folder 22 



Treatment 22 



Grapevine flea-beetle 23 



Treatment 24 



Rose-chafer 24 



Breeding grounds 25 



Life history 26 



Treatment 26 



Insecticides 26 



Arsenicals 26 



Paris green 27 



Scheele's green 27 



Arsenate of lead 27 



Arsenite of lime 27 



Contact remedies 27 



Whale-oil soap 28 



Kerosene emulsion i 28 



Fungous diseases 28 



Black-rot 29 



Downy mildew 30 



Powdery mildew 32 



Anthracnose 34 



Ripe-rot 35 



Less important diseases 36 



Bitter-rot 36 



White-rot 36 



Crown-gall 37 



Root-rot 37 



Shelling 37 



Fungicides 38 



Bordeaux mixture 38 



Preparation of Bordeaux mixture 38 



Nonstaining preparations 40 



Spraying 41 



Spraying apparat us 41 



Power 41 



Pumps 45 



Nozzles 45 



Application of 8j)i'ay nnxtures 46 



(Quantity of mixture required and cost of treatment 48 



