343 



hucoptera] for seven million; besides which the gipsy [Lymantria 

 dispar] and brown- tail moths [Euproctis chrysorrhoea], the San Jose 

 scale [Aspidiotus perniciosus] and other insects cause a high per- 

 centage of loss. 



Brittain (W. H.). Some Results from a Few Combination Sprays in 



1916. — Proc. Entom. Soc. Nova Scotia for 1916, Truro, no. 2, 

 January 1917, pp. 9-12, [Received 2nd June 1917.] 



This paper summarises by means of tables the results of various 

 combination sprays used during the year. Soluble sulphur (sodium 

 sulphide) and barium sulphur (barium tetrasulphide), two commercial 

 preparations sold in powdered form as substitutes for lime-sulphur, 

 appear to be inferior in fungicidal value to the latter preparation, 

 while both were found to injure foliage. 



Brittain (W. H.). The Nova Scotia Division of Entomology. — Proc. 

 Entom. Soc. Nova Scotia for 1916, Truro, no. 2, January 1917, 

 pp. 15-17. [Received 2nd June 1917.] 



Entomological work in Nova Scotia is reviewed since the year 1912, 

 when a Provincial Entomologist was appointed after Euproctis chry- 

 sorrJwea, L .(brown-tail moth) and Aspidiotus perniciosus, Comst. (San 

 Jose scale) had been discovered in the Province. Inspection and 

 fumigation have been thoroughly carried out under the regulations of 

 the Act of 1911. Investigation work has been extended, laboratories 

 being established with insectaries attached. One of these is situated 

 in a centre of infestation by Rhagoletis pomone'ila (apple maggot) and 

 another deals with experimental work on Lygus communis var. nova- 

 scotiensis, Knight (green apple bug). The various sucking insects that 

 attack apple and pear have received special attention and various 

 bulletins have been published on the information obtained Demon- 

 stration work and educational classes have also been held, and a 

 representative collection of Nova Scotian insects has been begun. 

 An inspector of apiaries has been appointed and general entomological 

 work has been efficiently conducted. 



Saxders (G. E.). The Effect of Certain Combinations of Spraying 

 Materials on the Set of Apples. — Proc. Entom. Soc. Nova Scotia 

 for 1916, Truro, no. 2, Januarv 1917, pp. 17-21. [Received 

 2nd June 1917.] 



0^^'ing to the frequency of damage reported in consequence of 

 spraying- apples with lime and sulphur, experiments were undertaken 

 to test the injury caused bv the use of various strengths of lime-sulphur 

 solution, and at what strength it began to cause dropping of the 

 apples. In all cases the trees sprayed wath even the most dilute 

 solutions of lime-sulphur gave fewer apples than unsprayed trees. 

 The fruit from the unsprayed trees was, however, almost worthless 

 owing to insect injury and fungus diseases, so that these results do not 

 constitute any argument against spraying, but rather indicate the 

 desirability of more dilute solutions of lime-sulphur and the further 

 investigation of the material with the idea of rendering it harmless. 



