PROCEEDINGS, 1916. 17 



together are simply those that have been gathered at odd moments by the officials of 

 the department. A list of this collection will be published as soon as time permits, which 

 shows plainly the random nature of this collecting, for, while we have taken a consider- 

 able number of forms that are new to the province and some that are new to North Am- 

 erica, many of the commonest species are absent. For this reason donations of even 

 the most common species will always be gladly accepted and due credit given. The 

 collection is housed in the new Science Building at the Agricultural College, Truro, 

 where the head office and laboratories are situated. 



5. Apiary Inspection. 



An act for the suppression of diseases among bees (The Foul Brood Act, 1916) has 

 recently been passed by the local legislature, and by the terms of this Act the adminis- 

 tration thereof has been placed under the Provincial Entomologist. An inspector 

 has been appointed in the person of Mr. C. B. Gooderham, B. S. A., who is prosecuting 

 this work and conducting an educational campaign for better methods in bee keeping. 



6. General. 



A large correspondence regarding insects injurious to crops is carried on by the 

 provincial entomologist, and many specimens are examined and reported on each year. 

 A large demonstration collection of various injurious insects has been prepared and is 

 being added to continually. The public are invited to make the fullest use possible of 

 the information at the disposal of the department. With the very efficient work being 

 carried on by Mr. George Sanders, Field Officer of the Dominion Entomological Branch, 

 the entomological needs of the province should be fairly well attended to. 



THE EFFECT OF CERTAIN COMBINATIONS OF SPRAYING 

 MATERIALS ON THE SET OF APPLES. 



By G. E. Sanders. 



DURING the past three years many prominent growers in the Annapolis Valley have 

 made the statement that they, "Sprayed the apples off the trees with lime 

 and sulphur". In 1915 the writer was fortunate enough to be called into the or- 

 chard of Mr. G. L. Thomson, of Berwick, who had been carrying on a few experiments 

 privately. Mr. Thomson had used on all of his trees, for the two sprays before the blos- 

 soms and one after, lime sulphur, 1.008 sp.gr., or 1 gallon of commercial lime sul- 

 phur to 37§ gals, of water, adding ordinary paste (acid) lead arsenate two pounds to 4 

 gals. For the fourth spray, two weeks after the blossoms, the same combination was 

 used on all but two rows of trees. On them a Bordeaux mixture was used consisting of 

 three pounds of lime, three pounds of bluestone (copper sulphate) to 40 gallons of water, 

 adding two pounds of paste (acid) lead arsenate. Aside from the difference in the fourth 

 spray, the treatment of the two rows was identical with the remainder of the orchard. 

 The trees sprayed with Bordeaux mixture for the fourth time bore easily three times as 

 many apples as any other trees of the same variety (Kings) in the orchard. 



On June 18th and repeated on July 10th, 1915, small tests of several spraying solu- 

 tions were made on some young Wagner apple trees in the orchard of F. H. Johnson, 

 of Bridgetown. On two pairs of trees lime sulphur 1.008 sp. gr., or 1 gallon of commer- 

 cial lime sulphur to 37J gallons of water was used. The check or unsprayed trees aver- 



