28 NEW YORK STATE MUSEUM 



The two check trees produced 2000 apples, which is not far from 

 a fair average as these trees ran, 1407 or 70.3 per cent of the total 

 were wormy, 707 or 35.35 per cent being side or end and side wormy 

 and 1044 or 51.2 per cent being end or end and side wormy. 



Series 3. The young orchard of Mr William Hotaling of Kinder- 

 hook, was selected for certain corroborative experiments. The trees 

 are exceptionally fine, only about five or six years old, dwarf in 

 habit and, as a rule, heavily laden for such young trees. They are 

 set in four rows running approximately north, with rows of peach 

 trees between, and, in the case of the experimental areas, the Wealthy 

 apples are alternated with Mackintosh. The actual experimental 

 trees were on the 30th to 35th transverse rows north from the house 

 and located on the two middle longitudinal rows. The check trees 

 were similarly located on the 25th and 26th transverse rows. The 

 data relating to the two varieties has been tabulated separately. 

 The western row of the experimental trees was sprayed with 

 arsenate of lead (15 per cent arsenic oxide) 3 pounds being used 

 to a 44 gallon barrel, and a lime-sulfur solution, the latter composed 

 of I gallon of a homemade concentrated wash testing about 35° on 

 a Baume scale to about 40 gallons. The eastern row of experi- 

 mental trees received the same application, except that the bordeaux 

 mixture, composed of 4 pounds of lime and 3 pounds of blue vitriol, 

 was substituted for the lime-sulfur wash. The spraying was done 

 May 17th, a hand pump with a rather fine Friend nozzle being em- 

 ployed. Care was exercised to see that the mixture was well stirred. 

 The application was made by Mr Hotaling personally. He took 

 special pains to cover the under, as well as the upper, surface of 

 the leaves, being in this respect possibly a little more thorough than 

 in his efforts to fill the upturned calyx ends of the young fruit. 

 Almost every leaf was well coated and only a very little dripping 

 was observed. It is possible, owing to the slight breeze, that the 

 northeast side of the trees was not sprayed quite so thoroughly as 

 other portions. The intervening peach trees were not sprayed. 

 This orchard had been well sprayed the preceding two seasons. 



The fruit was picked September i6th. It is probable that a large 

 percentage, possibly 50 per cent, of the wormy fruit was attacked 

 at points injured by a hailstorm which occurred May 30th. These 

 places afforded almost ideal opportunities for the entrance of young 

 codling moth larvae. The results are tabulated on page 30. 



