158 PRUNING OF PLANTS 



materials which are known to be safe and efficient. The 

 wound dressing should be applied carefully and the careless 

 daubing of the surrounding bark should be avoided. 



When pruning old trees the operator should be furnished 

 with good tools, and particularly good pruning saws. These 

 tools must be sharp so that clean, smooth surfaces are made. 



REVIEW QUESTIONS. 



1. Define pruning. 



2. Name three causes for pruning. 



3. Why do plants require pruning? 



4. Tell how a wound on a plant is healed. 



5. What is meant by balance or equilibrium of a plant? 



6. How are these influenced by pruning? 



7. Discuss the proper time for the pruning of plants. 



8. What is meant by summer and winter pruning? 



9. What materials are best suited for protecting a wound? 



10. Why are special pruning tools advisable? 



11. What defects are found in a double-edge pruning saw? 



12. What is the proper way to remove a large limb? 



13. Distinguish between the pruning of a young and an old tree. 



14. Discuss the pruning of a bearing tree. 



15. What causes give rise to the necessity of pruning? 



16. Discuss the effects of pruning. 



17. Discuss top pruning of a plant. 



18. Give the differences in the pruning of the branches and the roots of a 

 plant. 



19. What benefit is derived from summer pruning? 



20. How does winter pruning differ from summer pruning? 



