Yiii CONTENTS 



CHAPTER PAGE 



VI. Controlling Insects and Diseases 

 Operations. 



1. Determining insects and diseases to be controlled . 270 



2. Selecting and preparing materials for control . . . 273 



3. Determining time of application of materials and 



amomits to use 291 



4. Selecting machinery and equipment for making appli- 



cations 304 



5. Applying materials 340 



6. Determining costs of the spraying program . . . 353 



7. Adopting control measures other than spraying . . 355 



General Information. 



ControUing peach tree borer 358 



Community Studies 359 



VII. Propagating Fruit Plants 

 Operations and Factors. 



1. Cleft grafting . 362 



2. Inlay or bark grafting . 371 



3. Whip grafting 373 



4. Shield budding 377 



5. Bridge grafting 380 



6. Propagating by cuttings 383 



7. Propagating by layers 386 



8. Grafting preparations 387 



General Information 388 



Community Studies 389 



VIII. Pollination and Fruit Setting 

 Factors and Operations. 



1. How poUination and fertilization take place . . . 390 



2. Self-fruitful and self-unfruitful tree fruits . . . 394 



3. Determining need for cross-pollination .... 395 



4. Reviewing the case 401 



5. Using bees for cross-pollination 404 



6. Treatment of established orchards in need of cross- 



poUination 407 



Community Studies 409 



