4 DEPARTMENT OP AGRICULTURE BULS. 801-825. 



Department Bulletin No. 805. — Two Leaphoppers Injurious to Apple 



Nursery Stock: Page. 



Introdiction 1 



The apple leaf hopper 2 



History 2 



Distribution 2 



Food plants 3 



Character of injury 4 



Extent of injury and influencing factors 5 



Description of stages 5 



Allied species 6 



Life history and habits 7 



Summary of seasonal history 19 



Natural enemies 20 



The rose leaf hopper 20 



History 20 



Synonymy '. 21 



Origin and distribution. 21 



Food plants • 21 



Character of injury 22 



Description of stages 22 



Life history and habits 23 



Summary of seasonal history 28 



Natural enemies 28 



Remedial measures. 29 



Summary 33 



Literature c-ited ., 34 



Department Bulletin No. 806. — Peaches: Production Estimates and 

 Important Commercial Districts and Varieties: 



Relative importance and extent of the peach industry 1 



Estimated production of peaches 2 



Outstanding features of the peach industry 9 



Important commercial districts and varieties, by States 10 



New England States 10 



Middle Atlantic States 12 



East North-Central States 14 



West North-Central States. : 16 



South Atlantic States 18 



East South-Central States ' 24 



West South-Central States 26 



Mountain States 28 



Pacific States 31 



Index of States 35 



Department Bulletin No. 807. — The Broad-bean Weevil: 



Introduction.. - 1 



Description 2 



Synonymy 3 



Records of occurrence in California 3 



Distribution in California 4 



Spread in California 4 



Dissemination 4 



Nature of damage 5 



Extent of damage ^ 



Life history 8 



Seasonal history 11 



Germination tests of infested seeds 13 



Natural enemies 14 



Control measures. 1^ 



Dry heat 15 



Fumigation - - - 1^ 



Holding over seed 1''' 



Late planting 1^ 



Recommendations 21 



Summary ^1 



Literature cited 22 



