162 CONTENTS 



2. The solid stream sprayers 189 



A. Description 189 



B. Operating a solid stream sprayer 191 



3. Can the average mist sprayer be used for solid stream work ? . 192 



4. Can the solid stream sprayers be used for mist work ? 193 



5. A self propelled sprayer desirable for city use 193 



6. Selecting the machine to fit the needs 194 



7. Spraying equipment accessories 195 



A. A generous tool kit 195 



B. Covers for horses 195 



C. Clothing for workmen 195 



D. Lotions for protection of face and hands. 196 



VIII. Spraying materials 196 



1. The poison sprays 197 



A. Paste arsenate of lead 198 



B. Dry or powdered form of arsenate of lead 198 



2. The contact insecticides 199 



A. Soap solutions 199 



B. Kerosene emulsion 200 



C. Nicotine sulphate 201 



D. The sulphur sprays 201 



a. Home-boiled lime sulphur 201 



b. The commercial concentrated liquid lime sulphur. . . . 202 



c. Dry or powdered compounds of sulphur 203 



E. The soluble or miscible oils 204 



IX. Banding and banding materials 205 



1. Tree tanglefoot 205 



2. Bands of loose cotton batting 206 



3. Bands of burlap or cheese cloth 206 



X. Leaf or foliage destroying insects 207 



1. White-marked tussock moth 207 



2. The fall webworm 213 



3. The bag or basket worm 215 



4. The elm leaf beetle 218 



5. Cankerworms 222 



6. The black walnut datana 226 



7. The yellow-necked apple datana 229 



8. Datana drexelii Edwa^-ds 230 



9. Datana major Grote and Robinson 231 



10. The locust leaf beetle 231 



11. Two other leaf miners of the genus Chalepus 236 



12. May beetles or June bugs 236 



13. The catalpa sphinx 238 



