1903 



ENTOMOLOGICAL SOCIETY. 



43 



There are five more or less effective remedies — first the lime, sulphur and salt mixture ; second, 

 crude petroleum ; third, crude petroleum and whale oil soap emulsion ; fourth, whale oil solution ; 

 fifth, the McBain Carbolic Wash. With regard to the lime, sulphur, and salt mixture, its 

 effectiveness was demonstrated beyond doubt by Mr. G. E. Fisher, and it is being extensively 

 used, in the West particularly, as an eflFective remedy. Ihe chief points of excellence of this 

 mixture are ; first, its cheapness ; second, its effectiveness ; — third, its cleansing effect upon the 

 tree from both insect and fungus pests. The fact that it is somewhat difficult to prepare and 

 hard on the men and apparatus, has made this mixture unpopular with some of our fruit- 

 growers. Where the fruit-grower has the proper appliances for making the mixture it does not 

 seem so difficult as it appears. 



The crude petroleum is well adapted in the West for apple treatment, and in the Chatham 

 district I fail to hear of the death of a single tree. In that district the oil is easy to procure 

 and the fruit-growers are well pleased with the results. The objections which have been urged 

 against crude petroleum are : (I) the great variation in strength of the oil, (2) disagreeableness 

 of application, and (3) the great liability of its injuring plums and peaches. 



1 he emulsion of crude petroleum and whale oil soap, although a very effective remedy, has 

 never taken well with the fruit-growers, on account of the difficulty which was found in making 

 the emulsion and of the disagreeableness of the application. 



Whale oil soap solution although quite effective when properly applied proved too'expen- 

 sive for the average orchard, and has been given up. 



Fig. 9 a W. W. Hilborn's appliance for making the lime-sulphur-salt'mixture. ' 



The McBain Carbolic'^Wash is a new insecticide which has been tried for the first^time in 

 Canada this summer and has given good satisfaction wherever it has been tried. Further 



