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Plowing.—There seems little ground for hoping that the number of 
Leaf-hoppers can be diminished materialiy by any system of plowing 
under, or by rotation of crops. Grass is an essential on every farm, 
and no system of starvation could be adopted, and even if deprived of 
the common pasture grasses, the most of the species evidently thrive 
on the fox-tails and other grasses that flourish as weeds. The leaf- 
hoppers are too active to be plowed under and can readily migrate to 
other fields. Kggs for most of the species, at least, are not deposited 
at any fixed time of the year, and while by plowing under in May, June, 
or August many eggs might be buried, plenty of hoppers would 
escape to the surrounding grass land to keep the farm well stocked. 
Mowing.—When the grass in which Leaf-hoppers have been very 
abundant is cut short, leaving only a dry stubble, the inseets seem to 
be forced to migrate, as few or none can be found in such places a few 
days after the cutting nor untila new growth gives them a source of 
fresh food supply. While eariy cutting of meadows badly infested 
might result in saving a larger crop, if must follow that the Leaf-hoppers 
would travel to pastures or other grass land, and it would be simply a 
question as to where they would do the greater amount of damage. It 
would seem feasible, however, to take advantage of the time when the 
crop has been just removed to use hopper dozers or other means for 
capturing them before they have left for fresh pasture. We know, as 
yet, too little as to where and when the bulk of the eggs are deposited 
to say whether cutting at any particular time would result in the de- 
struction of any number of eggs. While we know that Leaf-hoppers de- 
posit eggs in stems and leaves of plants, we are not acquainted with 
their full history or the methods of different species, so that it would 
be unsafe at present to base remedies on this part of their history. 
Capturing in Nets.—The ease with which all species of leaf-hoppers 
affecting grass can be taken in sweep-nets led me to try thé use of this 
principle on a larger scale. I therefore had a couple of wire frames 
made 3 feet long, fastened a deep cheese-cloth net to each and attached 
these to two long handles, so that the frame of one would brush the 
ground about a foot behind the forward one. The object of having two 
nets was to secure the hoppers which allowed the first wire to pass over 
them before leaping. With the handles the net was pushed forward so 
that the insects were not disturbed till the approach of the net and a 
Strip of ground a yard wide was gone over either at a walk or a run. 
While numerous insects were secured by this plan, Grasshoppers, Moths, 
Clover-seed Midges, and large numbers of Leaf-hoppers, the count of 
those secured from the nets showed that as compared with what must 
actually exist on the same ground as shown by other captures, only a 
portion of the Leaf-hoppers were thus secured, and considering the 
trouble of holding and destroying all the insects captured, I concluded 
that this plan was not equal to the hopper-dozer for this purpose. The 
second net captured a goodly number of insects as well as the forward 
