23 
well as in Manitoba to the north of the international boundary; Mela- 
noplus differentialis is the one that must receive much of the blame for 
Kansas and Nebraska injury, while in the States of Indiana and Ohio 
Femur-rubrum and bivittatus are the guilty parties. Melanoplus atlanis 
is present in injurious numbers in the Red River Valley along with 
bivittatus, spretus, and the Camnula pellucida. In Colorado and New 
Mexico for the first time Dissosteira longipennis has appeared as one of 
the injurious species.of the country. 
While all of these locusts, along with most every other species of the 
' group which are native to North America, are to be counted as injuri- 
ous, the particular one that has been the dread of the whole country, 
and especially of the region lying between the Mississippi River and 
the Rocky Mountains, is the Migratory species—Melanoplus spretus. 
This insect is now on the increase in a limited area on our northern 
boundary and across the line in the province of Manitoba. By contin- 
uing the prompt and energetic efforts that are being carried out by the 
populace and State authorities of the States of Minnesota and North 
Dakota we can be assured of success only provided the Canadian gov- 
ernment will also see the advantage of cooperation at this time. This, 
let me state, is all the more necessary at this particular time, as all re- 
ports seem to indicate that at present this locust is not present in ab- 
normal numbers in any other part of the entire country. A stamping 
out of the pest in this region might, therefore, forever give immunity 
from their further injury. 
Finally, let me urge on the inhabitants of all infested regions that 
‘‘a stitch in time saves nine.” In other words, we do not know what 
the climatic conditions may be a year hence—whether they will be such 
as to favor the hoppers or not—so we should do the wise thing and 
Stamp out the pest. This has been done time and again in the past, 
and the recent work in the North shows how very profitable is the war- 
fare when carried on persistently. By the plowing under of the eggs 
laid last fall, and the use of the kerosene pans or hopper dozers in the 
destruction of the young locusts that did hatch, the twelve counties in 
the two States of Minnesota and North Dakota saved, by actual com- 
putation, on wheat alone, the sum of $400,000. This, mind you, was in 
’ a year not considered a locust year, and does not take into consideration . 
what was saved to the region in other crops and the injury that might 
have resulted next year had the hoppers not been destroyed. With 
every favoring circumstance, the comparatively few locusts of this one 
species that have thus far been destroyed the present year.in this region 
would have been sufficient to overrun, at least calculation, the entire 
area of the State of Minnesota, the two Dakotas and Nebraska, along 
with portions of lowaand Kansas, ‘True, these favoring circumstances 
might never occur, but it is always best to be on the safe side. This 
we should know from our past experiences with this same insect. 
“‘ Native” locusts, while perhaps not to be dreaded equally as much 
