630 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



a good pressure, of at least 100 pounds, so that the spray may be 

 forced through the foliage; for the blossoms point in all directions ; 

 and the spray must be forced through the tree to reach those point- 

 ing inward on the opposite side. To do thorough work the man 

 spraying should stand on a tower which will place him level with 

 the middle of the tree, so that with an extension rod all parts may 

 be readily reached. An angle on the end of the rod which will 



FIG. 487. Young apples in right condition to spray for the codling moth 

 and with calyx sepals closed too far for effective spraying. (Afx;er 

 Quaintance, U. S. Dept. Agr.) 



turn the nozzle at 35 or 45 degrees will greatly aid in reaching 

 all parts of the tree. 



The second spraying should be applied three or four 

 weeks after the blossoms fall, just as the eggs are hatching 

 At this time the object should be to cover the foliage thor- 

 oughly, so that the young larva? may be killed while they feed 

 on the foliage. Consequently both the upper and under surfaces 

 of the leaves should be coated. If the first spraying has been well 

 done, the second will often be unnecessary where there is but 

 a partial second brood or where the pest is well under control, 

 but as it is often necessary to spray for the fungous diseases 



