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ments were carried on with a view to finding a remedy against the in- 
juries of this weevil. 
THE CORN ROOT-WORM. 
(Diabrotica longicornis.) 
This insect is becoming alarmingly common in the counties of eastern 
Nebraska and those of western Iowa; and, judging from the general 
food habits which the imago appears to be developing, it may soon be- 
come a much more dangerous pest than we at presentimagine. During 
the past summer and fall the beetle has been almost omnipresent, so 
common was it in the vicinity of Lincoln. It was found upon a large 
variety of plants belonging to different orders. It was beaten from 
trees such as maple, box-elder, elm, ash, willow, cotton-wood, and oak. 
I found it rather common among the grasses and obtained it in plenty 
in gardens where it was feeding upon the leaves of radishes and 
turnips, in several instances completely riddling these latter with holes. 
As late as September 28, the beetle was still quite active during day- 
time, aud quickly took to flight upon being disturbed. In August it 
was observed to be nocturnal in its movements, as was to be seen by 
the large numbers of the beetles that were attracted to and gathered 
about the electric lights. On the morning of the 15th, 260 specimens 
of the beetle were taken from the globe of a single are light that hangs 
in front of University Hall upon the campus of the State University. 
These had all been attracted to and caught in the globe in a single 
night. Whether or not these came from the farms in the surrounding 
country I can not say. Might not the species work in the roots (for 
the larva is a root-borer) of some other plant or plants beside corn? 
At any rate it is my present intention to look into the life-history of the 
Corn Root-worm a little more closely during next season. It is getting 
to be by far too common an insect in these parts for us to be running 
chances in dealing with it. Rotation of crops may or may not always 
prove to be a remedy against its depredations. 
INSECTS DETRIMENTAL TO THE GROWTH OF YOUNG TREES ON “ TREE 
CLAIMS” IN NEBRASKA AND OTHER PORTIONS OF THE WEST. 
For several years now I have been interested in the study of the insect 
pests that render the growing of young trees upon claims entered under 
the “timber-culture act” quite a difficult and tedious matter. This 
interest in the subject had its origin partly in personal experience and 
partly from the numerous complaints of others who have experienced 
great difficulty in securing a sufficient growth in their young timber 
within the limitations for making final proof. Not infrequently has it 
been the misfortune for those striving to gain titles to Government lands 
under this act to have their trees completely defoliated for several 
years in succession. Nor have these injuries been confined to any single 
kind of tree, Since commencing the study of the subject I have either 
