QUESTIONS 211 



A block of 1,487 four-year-old apple trees was sprayed for 



San Jose scale at the following cost: 



Time, 41 hours (3 men and team) @ 87% cents (cost of labor) . . $35.88 

 Materials 720 gal. spray (Oil 1 to 12 = 55y 3 gal., @ 35 cents) 19.43 



Total cost $55.31 



Labor cost per tree 2.41 cents 



Material cost per tree 1.30 cents 



Total cost per tree 3.71 cents 



QUESTIONS 



1. What can be done to make spraying convenient and comfortable? 



2. Discuss the importance of knowing why we spray. 



3. Why is it important to spray in time? 



4. Why is thoroughness especially important in spraying? 



5. In what sense may spraying be considered as an insurance? 



6. Under what circumstances is there likely to be danger to animals from 



spraying? 



7. Outline the seasons spraying for apples and pears. 



8. How should plums and peaches be sprayed? 



9. Discuss the cost of spraying. 



