REPORT OF MR. W. S. BLAIR 



363 



SESSIONAL PAPER No. 16 



No. 



How Treated. 



Hellebore — 2 oz. to 1 gall, water . . 



Hellebore — 4 oz. to 1 gall, water .... 



Kerosene emulsion — 1 part oil to 



parts water . 



Kerosene emulsion — 1 part oil to 6 



parts water 



Kerosene emulsion — 1 part oil to 9 



parts water 



Kerosene emulsion — 1 part oil to 12 



parts water 



Paris green— 2 oz. to 10 gall, water . 



Tar paper disks put on June 1 



No treatment 



o a 



(B. 





0) 



Plants. 



36 

 30 

 11 





W 



o 

 to 



s 



Plants. 



17 



16 



27 



36 

 29 



27 

 62 



^3 



<V m ^ 



-o > 



^ <y C (U 

 ■•-> 'C eS fci 



S 



Plants. 



23 



16 



41 



41 

 39 

 36 

 20 



Plants. 



14 



17 



o 

 bo 



Plants. 



9 



17 



11 



14 

 27 

 22 

 12 



o 



u 





Plants. 



6 



7 



1 



4 



6 



8 



3 



11 



6 



bo 



n 

 3 

 O 



o 

 be 



Plants. 



94 

 93 



It will be seen that kerosene emulsion in this test has given unsatisfactory results. 

 To appears that an emulsion stronger than one part of oil to nine of water will do 

 serious injury, and that a weaker strength does not appear to have much effect on tho 

 eggs or maggot. The kerosene emulsion was applied with a force pump using a single 

 jet of liquid, forcing about a cup full of the mixture into the soil around the base 

 of each plant. 



The tar paper disks put around the plants on June 1, did not give as good results 

 a.i expected. This may possibly have teen due to the disks not having been put around 

 the plants early enough. The object of these disks is to prevent the insects from 

 depositing their eggs, which it is claimed they will not do, if these disks are fitted 

 closely around the plant at the surface of the ground. 



The hellebore and water recommended by Dr. James Fletcher, Entomologist and 

 Botanist of the Experimental Farms, exceeded expectation, and no root maggots could 

 be found around any of the plants examined in these two plots. The cabbage in these 

 two plots were the only good ones out of some 1,500 plants set. There was no noticeable 

 difference between plot No. 1 and 2, and t)\e heads averaged practically the same. The 

 hellebore was mixed with water and applied with a force pump in the same manner 

 as the emulsion. An equally good way, we should fancy, would be to move some of 

 the earth back from the base of the plant and pour about a cup full of hellebore water 

 into this hollow around the plant. About one cupful of liquid was used to a plant 

 in these plots. Further experiments will be carried on with this material. As far 

 as one can judge from a single season's experience, we are inclined to think that this 

 will iirove an excellent remedy for the root maggot. The cabbages were equally infested 

 nt the base of the root with eggs when the mixture was used. 



CUTWORM— POISONED BRAN REMEDY. 



The Red-backed Cutworm Paragrotis ochrogastcr was extremely troublesome around 

 the flower beds and in the vegetable plots this season. It was found, however, that this 

 pest could bt3 easily controlled by using the poisoned bran bait recommended by Dr. 

 Jamos Fletcher. The poisoned bran is scattered on the ground around the plants, and 

 if fowl are allowed to run where it has been used there is considerable danger. We 

 found that chickens were killed by picking up pieces of the bran six weeks after it 

 had been applied. 



