8 
Bulletin ioi. 
“herding” or driving. This consists in going in front of the swarm 
and conducting a flanking movement to turn the line of march to 
the right or left. I am told by the ranchmen that it is useless to 
try to turn the swarm back, but it may be deflected to one side. This 
is done in various ways: sometimes men, women and children 
go ahead of the swarm with bushes that they use by beating the 
ground as they travel back and forth; often saddle ponies are 
ridden back and forth, and sometimes bells are jingled, and tin 
cans are beaten with sticks or stones. From some tests that I 
made, it seemed to me that the hoppers cared little or nothing for 
noises, but they are frightened by an object in motion. Ropes and 
chains are also used to drag behind horses or between men walking 
or riding. 
Ditching with vertical banks next to the field which is to be 
protepted, and with frequent deep holes like post-holes in the bottom 
into which crickets will fall and pile up, have been used with some 
success, but it is doubtful if there are many cases where it would 
be practical to turn aside or destroy the crickets in this manner, un¬ 
less a rapid flowing stream of water can be kept running in the 
ditch, in which case the holes in the bottom of the ditch would not 
be necessary. 
Fencing. The crickets have the reputation of being able to 
climb a window pane or any other vertical surface, no matter how 
smooth. This was not true of the adult crickets that I made observa¬ 
tions upon at Eddy. I was unable to get one to climb up a vertical 
surfaced board until it was inclined to a considerable angle, and 
they were utterly unable to cling at all to verticle tin, glass, corru¬ 
gated iron roofing, oilcloth, or ordinary glazed wrapping paper, 
such as is used everywhere in meat markets and in other stores to 
wrap goods in. 
Professor Aldrich, in Bulletin 41 of the Idaho Experiment 
Station, reports the use of boards eight inches wide, placed edge¬ 
wise, end to end, about a garden, with a strip of tin on the upper 
edge projecting horizontally two inches as a barrier, that the crickets 
can not crawl over. Professor Doten of the Nevada Experiment 
Station, printed a letter from Prof. Kellogg of Stanford Univer¬ 
sity, which says that in Washington state six-inch boards are used 
effectually in the same manner, except that the tin strip is about five 
inches wide and is placed vertically and recurved outwardly. I 
tried the fence as described by Prof. Aldrich, and found it quite 
satisfactory. Care must be taken to have the tin projecting fully 
two inches. It seems to me that the ideal way would be to have 
this fence along the border of a ditch on the side next the crop, so 
that the crickets would fall back in the water and be carried down 
stream. Surfaced boards would be best, but if only rough boards 
were at hand, these could be covered with oilcloth or glazed paper. 
