196 EXPERIMENTAL FARMS. 
63 VICTORIA, A. 1900 
Sulphate of Copper, 2 per cent: Only a very few of the older and more vigorous 
plants escaped destruction, probably not more than three to five per cent. This solu- 
tion is evidently strong enough to kill all mustard plants 6 inches in height and less. 
Sulphate of Copper, 5 per cent.—All the plants killed. 
From the above data, I make the following inferences :— 
1. That a two per cent solution of sulphate of copper (that is, 2 pounds in 10 gal- 
lons of water) is, all things considered, the most effective, safest (as regards the grain 
crop) and most economical to use. The spraying should be done thoroughly, and for 
that purpose 50 gallons per acre will be required. If a heavy rain follows the spraying 
within 24 hours, the operation will have to be repeated. 
2. That, in ‘order that the work may be effective, spraying should not be delayed 
after the mustard plants have reached a height of 6 to 9 inches. If allowed to grow 
taller than this, stronger solutions would be necessary and in larger quantity, as the 
grain would then largely protect the mustard. 
NOTES ON LECTURING TOURS IN MANITOBA, THE NORTH-WEST 
TERRITORIES AND BRITISH COLUMBIA IN 1899. 
By instruction of the Honourable Minister of Agriculture and at the request of 
the several governments of Manitoba, the North-west Territories and British Columbia, 
I left Ottawa in June last to hold three series of farmers’ meetings in the West. The 
subjects of the addresses delivered were chiefly as follows: In Manitoba, locusts and 
weeds ; in the Territories, weeds and their eradication, special mention being made of 
the value of summer-fallowing and the use of the implements known as weeders, and 
nature studies and agricultural education in schools ; in British Columbia, the value 
of Farmers’ Trey | weeds and their eradication, insects injurious to fruits, hay and 
pasture grasses. 
Leaving Ottawa on June 10, I reached Manitoba on fle 13th. Passing along the 
railway between Ottawa and Manitoba, the backwardness of the season was remarkably 
apparent. Spring flowers which had been in bloom at Ottawa a month earlier, were 
only now opening their buds. This lateness was also a feature of the season all through 
Manitoba and the Territories. 
MANITOBA. 
Upon reaching Winnipeg, I made an examination of the shade trees, which are 
such an attractive feature of this beautiful city, and found that the Ash-leaved Maples 
were infested by three different insects: (1.) the Negundo Plant-louse (Chaitophorus 
negundinis, Thom.), (2.) the Cankerworm (Anisopteryx pometaria, Harr.)—both of 
these although much less abundant than in former years, still required attention—and, 
lastly but much more conspicuous, (3.) the Fleshy Leaf-gall of the Negundo. This is a 
fleshy swelling on the mid ribs of the young leaves which disfigures them very much. 
The galls are about an inch in length and contain several yellowish larve of a small 
gnat probably belonging to the genus Diplosis. An article was prepared for the press 
under the caption of ‘Spray the Trees,’ which was published in the local newspapers, 
and many availed themselves of the advice given therein. 
On June 13] reported myself at the Provincial Department of Agriculture, and, 
having been joined by Prof. Otto Lugger, the State Entomologist of Minnesota, I left 
Winnipeg on the 14th, and with Mr. Hugh McKellar, 
the Chief Olerk of the Provincial Department of 
Agriculture, who had made arrangements for an 
investigation of the areas. in southern Manitoba, 
which were infested by the Rocky Mountain Locust 
in 1898. We reached Boissevain on the evening of 
the 14th and held a well attended meeting of farmers the same evening. The first 
Fig. 22. _The Rocky M.untain Locust. 
