SPRAYING 241 



" This third spraying, then, should suffice to 

 destroy practically all of the first brood, and, if 

 the second spraying was properly done, the larvae 

 that are not destroyed while making their way to 

 the calyx will be poisoned when they attempt to 

 eat into the fruit at that point. One should have 

 in mind the importance of keeping all parts of the 

 trees coated with bordeaux and an arsenite at this 

 time, as a protection against fungous diseases and 

 the codling moth, as well as other leaf-eating in- 

 sects. If this third application is washed off be- 

 fore July I it should be repeated. 



LATE SPRAYING 



" At least one other application should be made 

 to protect late varieties of apples from the second 

 brood of the codling moth and from the attack of 

 apple scab. The second brood of the codling moth 

 does not, as a rule, hatch before the middle of 

 August. The season may make a difference of ten 

 days at any given point, hence no positive date 

 can be fixed, especially as it is not uncommon to 

 have the moths appear over a period of two to 

 three weeks. They generally continue to deposit 

 the eggs for a week or ten days. 



" A fifth application is recommended for the 

 codling moth to be given to winter varieties of 

 apples from August 10 to 15. For this spraying it 

 will generally suffice to use only an arsenite, except 

 in cases where they are very subject to the attack 

 of apple scab, and where the weather is favorable 

 for its development, especially if the fruit and foli- 

 age do not seem to be well covered from the fourth 

 spraying. 



