CONTENTS 



WHAT SCALE-INSECTS ARE 267 



SOME DESTRUCTIVE SCALE-INSECTS OF THE STATE OF NEW 



YORK 269 



The Apple-tree Bark -louse. 269 



The Scurfy Bark-louse 270 



The Pine-leaf Scale-insect 271 



The White Scale 271 



The Maple-tree Scale-insect .' 272 



The Plum-tree Scale-insect 273 



THE SAN JOSE SCALE 275 



Introduction and Spread 275 



Occurrence in the Eastern United States 276 



Investigations by the U. S. Department of Agriculture 276 



In Mary land 277 



In Florida 277 



Discovered in other States 278 



The San Jose Scale in New York 279 



The San Jose Scale on Long Island 281 



Condition of the Long Island Nurseries 282 



The San Jose Scale in New Jersey 285 



The two Infested New Jersey Nurseries 287 



The Wm. Parry Nurseries 287 



The Lovett Company Nurseries 287 



The San Jose Scale in Ohio 290 



Description of the Scale 290 



Description of the Insect 291 



Its Life-history 292 



Its Food-plants 294 



Spread of the Insect 295 



Carried by Birds, etc 296 



Distributed in Nursery Stock 296 



Protection from Infested Stock 296 



Proposed Legislation 297 



Remedies . * 299 



Winter washes 300 



Home-made Whale-oil Soap 301 



The Winter Resin wash 301 



Potash wash 801 



Summer washes 302 



Gas treatment 802 



Treatment of Nursery Stock 803 



bibliography , 803 



34 



