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the grasshoppers inside, and then the rest of the field may be plowed in the nana] 
manner. The insects will he driven toward the center of each land as the plowing 
proceeds, and the last furrows will be found to cover up great numbers, especially if 
plowed late in the evening or as soon as it becomes daylighl in tin- morning. 
If thought best, the plowing may not be finished at once, but a strip left in the 
middle of each land on which the grasshoppers may be caught, or the strip may be 
covered with dry straw and the insects destroyed by burning. Plowing the stubble 
field is an important step in fighting the locust in -ease much grass is found growing 
in the stubble. If the stubble is left standing the grasshoppers will be slow to 
leave their hatching ground if the food is abundant, and thus for several week-, tin- 
insects will be passing from the stubble to the wheat fields. The task of catching 
them is much shorter after the fields are plowed. In catching the locust several 
means have been employed at various times and places, but we will now describe only 
one that being the one that from its cheapness, ease of obtaining and operating, and 
general efficency, seems to be best. 
The apparatus referred to is the tar pan or hopper-dozer. The pan should be made 
of rather heavy sheet iron or ordinary galvanized iron. The length should be about 
16 feet, width of bottom from 2\ to 3 feet, and the back about 2 feet high. The back 
may be made higher by a strip of gunny-cloth or a board, if experience shows the 
necessity. Along the front edge of the pan is placed a board from 1 to 2 inches thick 
and 4 inches wide. This is beveled on the lower front corner, so that the pan may 
pass easily over obstructions, and the iron that constitutes the bottom of the pan is 
brought around the front edge of this strip and nailed on top. The pan is further 
strengthened by a strip of timber along the back. The ends are of \\ inch plank, 
each bearing a clevis at the front for drawing the pan. The pan is drawn by two 
horses, one hitched in front of each end, on a rope about 10 feet long. Fastened to 
these ropes by a strong cord is a 16 foot pole so arranged as to drag about a foot in 
front of the pan so as to scare up the grasshoppers. 
The pan is heavily smeared with coal tar, thus catching and holding all insects 
that jump in. It is a good plan to add a small amount of kerosene to the coal tar, 
so that the locusts may die almost as soon as entering the pan. Ordinary observa- 
tion will enable a person to see when the insects should be scraped out and a fresh 
supply of tar added. The most effective time of day for using the dozer is toward 
evening when the insects are feeding. A pan working in this manner will catch 
several bushels a day in regions that are badly infested. 
Sir: I have just returned from my canvass of the grasshopper region and find the 
situation to be as follows : 
In general there appears to have been more or less egg laying over the whole region 
outlined in my former report to you. From Orr north to Park Eiver this condition 
was modified largely by the presence of what I took to be a dipterous parasite, though 
I saw nothing but the larval form of this parasite and can not tell positively what it is. 
The larva was about one-fourth of an inch long and turned from white to a light brow n 
on emerging from its host. In certain localities fully three-fourths of the Caloptenua 
sjiretus and C. atlania were destroyed by the timely ravages of this parasite, but the 
C. bivittatiis seemed to escape its attacks. In the vicinity of Larimore the parasite 
appeared but little. The region in which the greatest number of eggs is deposited 
is the southern part of Towner County in the vicinity of Cando. The C. tpretut 
was abundant here and stayed till very late with no trace of parasites. The same 
condition exists all over Benson and Ramsey counties though in these last-named re- 
gions the grasshoppers themselves were far less numerous. The gospel of plowing 
has been so thoroughly preached that little danger may be expected except in what 
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