36 ' THE REPOET OF THE No. 36 



The second applicatio]i was soon after the blossoms felL One side of the trees 

 was dusted June 3rd, the other June 6th. Tlie calyces were beginning to close 

 at the latter date, but were not too far advanced for best results. 



The Liaie-Sulpuur and Aksexate of Lead Plot (51 trees). 



The first application after the leaves opened was, as in the case of the dust, 

 given just before the blossoms opened, one side of the trees being done on May 15th^ 

 and the other on May 20th. The lime-sulphur was used at the strength of 1.010 

 sp. gr. and the arsenate of lead (paste) at 2i/^ lbs. to 40 gals, of diluted lime- 

 sulphnr. 



The second application was given soon after the blossoms fell, one side of the 

 trees being done on June 1st, the other on June 3rd. The lime-sulphur was used 

 at the strength of 1.008 sp. gr. and the arsenate of lead (paste) at 2 lbs. to 40 

 gals, of diluted lime-sulphur. 



The Soluble-Sulphuk and Calcium Arsenate Plot (19 trees). 



The first application was just before the blossoms burst, one side May 17th, 

 the other May 20th. Soluble-sulphur li/o lt)S. and calcium arsenate (powder) 

 1-2/3 lbs. to 40 gals, of water were used. 



The second application was just after the blossoms fell, on June 3rd, both 

 sid^ being sprayed the same day. The soluble-sulphur was used at I14 ll^s. and 

 calcium arsenate at 1^5 lbs. to 40 gals*, of water. 



Note. — In each plot it will be observed that including the early application for 

 San Jose Scale, only three sprayings were given, except that in the dust plot 61 

 trees were dusted from only one side in August. 



Treatment of Soil on the Plots. 



No ]iart of the orchard received any fertilizer. The dusted part had rich soil 

 and was left in sod, in fact two cows pastured on it for a couple of weeks while the 

 apples were small. Later the weeds were mown down. The liquid sprayed part 

 had poorer soil, hence tlie owner on our advice ploughed and cultivated it to give 

 the trees a fair chance. 



Check Trees. 



As check trees we relied upon the uncared for trees on the mountain side, on 

 neighboring orchards and on a row of ten trees consisting of R. I. Greening, Bald- 

 win, Spy and Gravenstein, belonging to a neighbor, and in the same relative position 

 to the mountain as our own orchard. These ten trees we dusted before the buds 

 burst with soluble-sulphur dust and hydrated lime to see the effect upon San Jose 

 Scale. Somewhat unfortunately for us, perhaps, the owner seeing the excellent 

 smount of bloom gave the trees a moderate spraying with lime-sulphur and arsenate 

 of lead soon after the blossoms fell. 



Results. 



1. Effect on the Foliage. — We may mention here that on neither apples, 

 cherries, plums, peaches nor grapes did the dust, so far as we could judge, cause 

 any burning or injury. On the apple trees the dusted leaves were much superior 

 to those on the liquid sprayed plots, being more glossy and more perfectly expanded 

 than those that were sprayed with lime-sulphur and arsenate of lead. The soluble- 



