78 THE EEPOET OF THE No. 36 



6. The orchard must, therefore, be kept in a state of clean cultivation, until 

 all the insects have reached the adult state, Arhich will be at the end of the first 

 week in July. 



7. The trees must be banded with tree tanglefoot to prevent the reascent of 

 the insects that have fallen to the ground. 



8. The trees must bt properly pruned, so that all parts can be readily reached 

 by the spray. 



9. Apple trees should be sprayed with Blackleaf 40 in the strength of 1 pint 

 to 100 gallons, just before the blossoms open and again after they fall; pear trees 

 just after the blossom petals fall and again five days later. 



10. A very heavy, drenching spray must be applied. 



11. The insects are much more easily controlled on pears than on apples so 

 that with light infestations in this tree, spraying alone should be sufficient to 

 control the pest. 



COxVCLUSION. 



The foregoing is only a summary of a single season's work. New facts will 

 doubtless be revealed by subsequent study. The work was carried on under con- 

 siderable difficulties, the pest being a new one and little known regarding its habits. 

 Tlie methods of control which have been given require considerable care in their 

 application, but once the pest is eradicated it should not be so troublesome to pre- 

 vent further serious infestations. The great need at the present time is an insecti- 

 cide cheaper than Blackleaf 40, that will do the work as effectively. However, even 

 under present conditions, growers who have lost entire crops from the work of this 

 pest will not hesitate to take the measures recommended. 



The Peesident: Professor Brittain is to be congratulated on the amount of 

 work he has accomplished in a single season, and also the extent of his work. T 

 myself have noticed the corky pears in Nova Scotia, but I never performed the 

 crucial experiments which induced Professor Brittain to undertake the eradication 

 of the pest. I can personally testify to the extraordinary damage which is now 

 being caused by this insect throughout Nova Scotia. I was down there about three 

 weeks ago and was able to see the results of the damage. I was also able to 

 appreciate the extent to which the fruit-growers in the Annapolis Valley are 

 grateful to Prof. Brittain for discovering the cause of these corky pears and the 

 cause of the injuries on the Nonpareil trees. I know there are a number of 

 members here who wish to ask Professor Brittain questions, and the paper is now 

 open for discussion. 



Prof. Caesvr: On account of tlie similarity of this paper to the next I think 

 the discussion of this paper should be postponed until after the next. 



The President : You move that the discussion of this paper be left over 

 until after the next ? 



Mr. Treherne: 1 second the motion. Carried. 



