58 THE CHINCH BUG. 
of this emulsion use 15 gallons of water, mixing thoroughly, and if 
applied to growing corn it will be best to use it either during the 
morning or evening, say before 8 a. m. or after 5 p. m., as it will be less 
likely to affect the plants than if applied in the heat of the day. 
Where an invasion of the chinch bug is in progress from a field of 
wheat to an adjoining field of corn, as an illustration, the marginal 
rows of corn can frequently be saved, even after the bugs have massed 
upon the plants, by spraying or sprinkling them freely with kerosene 
emulsion, using a sufficient quantity so that the emulsion will run 
down and reach such bugs as are about the bases of the plants. This 
treatment will kill the bugs clustered upon the corn, and in case of 
those on the way to the field, while it will not keep them out, it will 
cause a halt in the invasion, and thus give the farmer an opportunity 
to put other measures in operation, and one of these measures will 
include the use of kerosene in another manner. If a deep furrow is 
plowed along the edge of the field, running the land-side of the plow 
toward the field to be protected, the furrow will form a temporary 
barrier to the incoming hordes. 
UTILITY OF DEEPLY PLOWED FURROWS SUPPLEMENTED BY THE USE OF KEROSENE 
EMULSION. 
In dry weather the sides of this farrow can be made so steep and the 
soil so finely pulverized that when the chinch bugs attempt to crawl 
up out of the furrow they will continually roll back to the bottom, 
where they can be sprinkled with either kerosene alone or with the 
much less expensive emulsion, and killed. In case of showery weather, 
which prevents the sides of the furrow from remaining loose and dry, 
the bottom can be cleared out with a shovel, making it more smooth 
and the sides more perpendicular, thus rendering it so much easier to 
follow along the bottom than to attempt to climb the sides. If holes 
are dug across the bottom at distances of, say, 30 or 40 feet, the bugs 
will fall into them and can be still more easily disposed of by the use 
of kerosene. That both of these measures are thoroughly practical I 
have ample personal experience in evidence, and know that under most 
conditions that are likely to obtain, prompt and efficient application is 
all that is necessary. During a few days this work will demand the 
closest watching and application, but fields of grain can be protected 
thoroughly and effectually if these measures are faithfully carried out, 
and the expense of time and money will be found to be less than in 
almost any other plan that has been up to this time discovered. I have 
never seen a field attacked by a migrating army of chinch bugs but 
that it might have been saved from very serious injury by the prompt 
use of either of these measures, though I can imagine conditions where 
the farmer might find it advantageous to use some other method of 
protection. 
