1901 - ENTOMOLOGICAL SOCIETY. 119 



The Horse bot-fly has also been very troublesome.— (Fig. 58.) I might suggest here a 

 simple remedy for this, which was published some time ago by the United States Department of 

 Agriculture, and appeared in one of our agricultural papers. Bruise 

 some Tansy and make an infusion of the juice, — in other words, tansy- 

 tea. Give the horse some of this tea in the morning, and a dose of 

 salts in the evening, and it is said a complete cure will be effected. 

 The process seems like this, — the tea operating to kill the bots clinging 

 to the membrane of the horse's stomach, and the salts expelling the 

 dead bots. 



The Diamond-back moth (Flntelhi cruciferarnni) has been again r ig.R8.- Horse Boi- 



, ny- reniale. 



very abundant in all parts of the Territories, seriously damaging many 



turnip and cabbage crops. The field of riddled and bleached plants was a common spectacle ■ 



From the presence last year of parasites in considerable numbers, there were hopes that this 



pest would not be troublesome this year, but every turnip and cabbage field neglected becomes 



a simple breeding ground for this insect. 



Some cabbage crops about 12 miles east of Lacombe also suffered from the Red turnip-beetle 

 {Entornoscelin adcmidis). It.s appearance is also reported from a few widely separated jjoints in 

 the Territories, but in certain places where it was abundant last year it seems temporarily, at 

 least, to have disappeared. 



The Colorado potato-beetle {Doryphora decemliueata) is gaining headway. They are re- 

 ported from Calgary, MacLeod, Pincher Creek, Walsh, Moosejaw and other points. The winters 

 are not fatal to this pest, which passes that season composedly in the pupa state. 



Another pest of the potato field more troublesome this year than usual is a wireworm, — 

 chiefly (so far as I have observed) the larva of a " Daddy Long-legs " or Crane fly {Tipula}. It 

 was a common thing (on taking an average sample) to find 15 per cent, of the potatoes affected 

 by this grub. Reports of its prevalence come from all parts of the Territories. 



Damage by root maggots of various kinds has also been conspicuous this year. It is re- 

 ported from many points, and more particularly from Edmonton and St. Louis (Sask.). Cauli- 

 flowers, cabbages and turnips were all about equally the sufferers. Mr. Willing reports the 

 larvpe of a "Cabbage" hutter^y (Pieris protodice ) aa h&vmg been rather abundant in gardens 

 around Regina, and here and there the little active flea-beetle [Haltica striolata) has been de- 

 structive to young turnips. 



Of foliage trees, Mr. Willing mentions Tent-caterpillars of both species (Glisiocampa Ameri- 

 cana and C. disstria) as having been abundant in Assiniboia, and, for the first time recorded, 

 considerable numbers of the latter species appeared in the Red Deer and Lacombe districts (on 

 aspen poplarl I found a large percentage of these were parasitised by Tachina flies, and I hardl}' 

 think trouble will be given by this pest for awhile. Aspen poplar also suffered in early spi ing 

 throughout the entire North- West from the Pallid aspen beetle (Gonioctena pallida) ; and the 

 disagreeable larvte of the Striped Cottonwood beetle {Lina seripta), the pest of osier growers, 

 again attacked willf)ws on river banks, and in Regina box elders suftered from the Box-Elder 

 bug. 



Of fruit trees, the black currant in gardens around Regina is reported to have suftered from 

 the "Currant worm." 



Cutworms, which must not be confounded with wireworms, from which they are in every 

 . way distinct, have not this year given so much trouble. The heavy rains were unfavorable for 

 their development as a pest. 



With regard to grain, there have been several complaints of injury to oats when in first 

 blade, the blade wilting away and dying. In two cases which I went to see, the damage was the 

 work of a wireworm of the same genus {Tipula) as that affecting potatoes, though a different 



