42 



Second application. — Spray with Bordeaux mixture and an arsen- 

 ical, as 2 pounds of arsenate of lead or 6 ounces of Paris green to 50 

 gallons of the Bordeaux mixture, immediately after the petals fall. 

 This is the second treatment for scab and the first for the codling moth. 

 Special pains must be taken to fill with the spray the calyx cavity of 

 each little apple, where the poison will be retained to kill the young 

 larvae as they attempt later to enter the fruit. If this application has 

 not been thoroughly made, a supplemental treatment should be given 

 within a week and before the calyx lobes close, in order to further 

 insure the poisoning of each calyx cavity and afford additional pro- 

 tection against the scab. 



Third application. — Spray with Bordeaux mixture and an arsen- 

 ical, as above, three weeks from the dropping of the petals. This 

 treatment is especially important for destroying -codling moth larvae 

 just as they are hatching from eggs placed here and there on the 

 foliage and fruit. It is also an important treatment in the control of 

 leaf-sp'ot diseases, and in some seasons is necessary for the prevention 

 of scab. 



Fourth application. — Spray with Bordeaux- mixture and an arsen- 

 ical, as above, six or seven weeks after the petals fall. This is the first 

 treatment for the bitter-rot and apple blotch diseases, and is also 

 important for the control of leaf -spot. Where the preceding applica- 

 tions have been omitted and the weather conditions (hot and showery) 

 indicate an early infection period, this treatment should perhaps be 

 made a week earlier. 



Fifth application. — Spray with Bordeaux mixture and an arsen- 

 ical, as above, about nine weeks from the close of the blooming period 

 or two weeks later than the fourth application. This constitutes the 

 second application for the bitter-rot and apple blotch diseases, and 

 the first for the second brood of the codling moth. It also affords 

 further protection against leaf -spot. 



Sixth application. — Spray with Bordeaux mixture and an arsen- 

 ical, as above, about twelve weeks after the petals fall or three weeks 

 after the fifth application. This constitutes the second application 

 for the second brood of the codling moth and the third for the bitter- 

 rot and apple blotch diseases. 



