128 DECIDUOUS FEUIT INSECTS AND INSECTICIDES. 



Page. 

 Glue and Paris green washes ineffective against California peach borer, injuri- 

 ous to trees 87 



" Gophers," injury to root stocks of fruit trees in California 68 



Grape (see also Vitis). 



berry moth, control by spraying 63 



European. (See Vitis vinifera.) 



food plant of Aspidiotus (Diaspidiotus) uvse 115-124 



grape leafhopper ( Typhlocyba comes) 1-12 



rose-chafer ( Macrodactylus subspinosus) 53-64 



leafhopper. (See Leafhopper, grape.) 



rootworm, control by spraying 63 



scale, control by spraying 120-121 



spraying in summer. 121 



winter 121 



Grapes, wild. (See Vitis spp.) 



Grasses, food plats of Tarsonemus culmicolus 112 



perhaps food plants of Tarsonemus spirifex Ill 



silver-top disease caused by Tarsonemus culmicolus 112 



Hsematobia serrata, bibliographic reference , 122 



=Lyperosia irritans 122 



Handpicking rose-chafer beetles in vineyards 57-58 



Hyperallus calirox, parasite of Caliroa (Eriocampoides) amygdalina 101-102 



Johnson, Fred, paper, "Spraying Experiments Against the Grape Leafhopper 



in the Lake Erie Valley" 1-12 



"Vineyard Spraying Experiments Against the Rose- 

 chafer in the Lake Erie Valley " 53-64 



Kerosene (see also Petroleum and Oil). 



emulsion against grape scale 121 



peach bud mite 114 



Ladybird, twice-stabbed, enemy of Aspidiotus uvse, bibliographic reference 122 



Leafhopper, grape, adult, life history 6-7 



adults, emergence in spring 4-5 



not effectively controlled by sprays 8 



characteristics 2-3 



control by spray applications against nymphs 8-12 



cost of spray application in the Lake Erie Valley 10-11 



egg stage, life history 5 



emergence of adults in spring 4-5 



habits 2-3 



hibernation 3-4 



injuries in the Lake Erie Valley 1-2 



in the Lake Erie Valley, conclusion 12 



spraying experiments 1-12 



life history 3-7 



nymphal stages, life history 6 



nymphs, control by spray applications 8-12 



remedial measures 7-12 



Lecanium nigrofasciatum, bibliographic reference 123 



Lime, coal tar, and whale-oil soap against California peach borer 87 



crude oil wash against California peach borer 86 



oil mixture as preventive against California peach borer 83-85 



sulphur salt mixture against California peach borer 86 



wash against grape scale 120, 121 



