8 FIELD WOKK AGAINST GIPSY AND BEOWN-TAIL MOTHS. 



Page. 

 Pig. 7. Hairs of the caterpillar of the brown-tail moth, highly magnified 25 



8. Equipment for roadside work against the gipsy moth, used by em- 



ployees of the Bureau of Entomology 39 



9. Roadside where thinning operations are being carried on, showing 



tools and equipment used in the work 40 



10. Employees of the Bureau of Entomology treating egg clusters of the 



gipsy moth with creosote, using an ordinary paint brush and a brush 

 attached to a long pole 41 



11. Roadside which has been cleared of brush and the trees banded with 



burlap and tanglefoot 42 



12. Gipsy-moth scout's outfit, consisting of climbing irons, mirror, clean- 



ing knife, can of creosote, and brush 43 



13. Roadsides badly infested by the gipsy moth 44 



14. Same road shown in figure 13, after the completion of thinning opera- 



tions against the gipsy moth 45 



15. Map showing roads in Massachusetts where the brush has been cut, the 



trees thinned, and those remaining treated by employees of the 

 Bureau of Entomology to prevent the spread of gipsy-moth larvae on 

 vehicles 46 



16. Pile of 120,000 webs of the brown-tail moth, gathered and destroyed 



at York, Me 51 



17. Roadside area, showing how the grass has been induced to grow by 



thinning out the trees and clearing away the underbrush in gipsy- 

 moth control work 64 



18. Spraying a roadside, using a combination tower and hand nozzle, so as 



to throw two streams 68 



19. Map of New England, showing the present area infested with the gipsy 



moth and the brown-tail moth 73 



20. Neglected apple orchard in which the trees have been killed by the 



gipsy moth 74 



21. View of a hill where all the timber was cut to prevent its destruction 



by the gipsy moth; pile of logs in the foreground 75 



22. Map of New England, showing areas infested by the brown-tail moth 



from 1897 to 1909 76 



