JOURNAL OF ECONOMIC ENTOMOLOGY 
OFFICIAL ORGAN AMERICAN ASSOCIATION OF ECONOMIC ENTOMOLOGISTS 
APRIL, 1920 
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The resolutions adopted by the cotton states entomologists and 
printed elsewhere in this issue give expression among other things to 
the prominent place recently introduced insects have taken among 
economic pests and voice once more the need of pushing control and 
exterminative measures. The situation is surely serious with the 
gipsy moth, the brown tail moth, the European corn borer in the 
northeastern section of the country, the Japanese beetle in New Jersey 
and the pink bollworm and the sweet potato weevil in the south, while 
the oriental peach moth appears fairly well established along portions 
of the Atlantic seaboard. Each of these insects presents a group of 
problems in relation to both control in the field and the restriction of 
spread, not to mention special cases in which extermination is being 
attempted or urged. This country has suffered enormous losses in the 
past due to introduced insects, some of which are now of only historic 
interest while others rank among the most destructive forms. It is 
possible and perhaps probable that our increasingly efficient quaran¬ 
tines will serve to at least check and may be indefinitely postpone the 
establishment of still other pests. The efficacy of such measures 
can be ascertained only by tests on a large scale because a rigid exclu¬ 
sion from one group of ports or one section of the country only makes 
the dissemination of a pest a little more difficult. Who can say that 
any but the most rigid quarantine will accomplish more? The prob¬ 
abilities favor a continuance of the conditions outlined above. The 
invader slowly or rapidly spreading, as the case may be, is normal 
wherever there is a chance of a species establishing itself in unoccupied 
territory. It may be possible to develop methods to such an extent 
