6 NEW YORK STATE MUSEUM 



William Hotaling at Kinderhook. Special pains were taken to 

 secure uniform plots of ample size and to see that the treatment 

 was thorough. Each plot, as last year, except in the case of Mr 

 Hotaling's orchard, consisted of forty-two trees, the fruit from 

 the central six alone being counted. The relative value of one, 

 two and three sprayings, and also of one application made three 

 weeks after the blossoms dropped, was ascertained. The results 

 compare closely with those obtained in 1909 and go far to show 

 that the conditions in 1910 were exceptional. One thorough ap- 

 plication last season resulted, in the case of trees bearing a fair 

 crop, in from over 98 to more than 99 per cent of worm-free 

 fruit. This should prove most encouraging to the fruit grower, 

 since the work was done under practical conditions which can 

 be duplicated in almost any section. Assistant State Entomolo- 

 gist Young assisted in the field work, classified the wormy fruit 

 and computed the tabulated data. 



The work of 191 1 with the codling moth has been correlated 

 with that of the two preceding years and is the most compre- 

 hensive data yet secured as to the possibilities with one spray- 

 ing under varied conditions. These results should be of great 

 practical value in enabling the fruit grower to determine for 

 himself the advisability of spraying for this pest more than once 

 in any season. The details are given on subsequent pages. 



Observations show that the San Jose scale, while a serious 

 fruit tree pest, is being generally controlled, though some fruit 

 growers are not entirely successful, due in large measure to 

 difficulties in treatment. Some of these are excessively large or 

 inaccessible trees, adverse weather conditions at the time the work 

 should be done or defects in equipment. The concentrated home- 

 made or commercial lime-sulfur washes were used largely and 

 mostly with very satisfactory results. 



The peculiar linear series of eggs so frequently seen on apple 

 and pear bark have been identified as those of the notch wing, 

 a species noticed below. The usually rare Say's blister beetle 

 was exceptionally numerous. Two small fruit insects, the rasp- 

 berry Byturus and the garden flea, were studied at Milton, the 

 former proving somewhat injurious. 



Gipsy moth. The discovery of a gipsy moth colony at Lenox, 

 Mass., while not entirely unexpected, was something of a 

 shock to our extensive agricultural interests. A personal ex- 

 amination satisfied the Entomologist that the insect was 



