112 DECIDUOUS FEUIT INSECTS AND INSECTICIDES. 



Page. 



Euthrips pyri, mouth parts .♦. 2-3 



nymph or pupa 9-10 



occurrence 1-2 



ovipoeition 7-8 



ovipositor 7 



sprays unsatisfactory 12 



Fertilizer, commercial, against peach-tree barkbeetle 101-105 



constituents, used in experiments against peach-tree barkbeetle 104 



Fidia vitidda. (See Grape root-worm.) 



Fig, food plant of Euthrips pyri 5, 11 



Fish-oil soap. (See Soap, fish-oil.) 



Foster, S. W., Johnson, Fred, Girault, A. A., and Quaintance, A. L., paper, 



' ' Demonstration Spraying for the Codling Moth " 69-76 



Fungi, enemies of Euthrips pyri 15-16 



Fungus, black-knot. (See Black knot.) 



Grape, food plant of Euthrips pyri 5-11 



Earrisina americana 77-79 



Grape-leaf skeletonizer. (See Harrisina americana.) 



Gall, elm, Enarmonia prunivora reared therefrom 50 



Hawthorn, Semasia janthinana reared therefrom 59 



oak, Enarmonia prunivora reared therefrom 50, 53, 59 



Girault, A. A., paper, " The Lesser Peach Borer (Synanthedon pictipes G. & R.)". 31^8 

 Quaintance, A. L., Foster, S. W., and Johnson, Fred, paper, 



"Demonstration Spraying for the Codling Moth" 69-76 



Glyptapanteles sp., parasite of Harrisina americana 87 



Grape root- worm and \'ineyard conditions in Lake Erie Valley 62-63 



control recommendations based on observations and results 



of season's work, 1907 67-68 



history 61 



injury to newly bearing vineyards 64-65 



Investigations in 1907 61-68 



methods of recording results from spraying experiments 66-67 



renovation experiment on an old, run-down vineyai'd 65-66 



spraying experiment in a newly infested vineyard 66 



work undertaken at North East, Pa 63 



varieties attacked by Harrisina americana 79 



wild, food plant of Earrisina americana ; 79 



Grapholitha prunivora^ Enarmonia prunivora 52 



Gregarious habits of Earrisina americana 77, 80, 86, 87 



Hand-picking against grape-leaf skeletonizer 87-88 



Harrisina americana 77-90 



adult 84 



bibliography 88-90 



cocoon 83 



comparison with //. texana 87 



description of stages 80-84 



destructiveness 79 



distribution 79 



egg 80-81 



enemies 87 



food plants 79 



generations 85 



