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SUMMARY OF PRINCIPAL REMEDIES AND PREVENTIVES. 
The bisulphide of carbon by reason of its intensive action is the best 
known remedy against all insects that affect stored products, and for 
this purpose is becoming indispensable, but in addition to its use various 
other measures, principally preventive, may be observed with profit for 
the preservation of grain against insect attack. The principal coordi- 
nate or additional measures may be summarized as follows: 
(1) Prompt threshing to prevent the Angoumois grain moth, rice 
weevil, and some other species in the extreme South, from obtaining 
access to the granary. 
(2) Inspection, quarantining, and disinfection of infested or suspected 
grain, bags, and machinery before permanent storage. 
(3) Serupulous cleanliness, including the prompt destruction of refuse 
material, which will accomplish much in lessening the chances of injury. 
(4) Constructing or refitting the warehouse or mill, especially in warm 
latitudes, with a view to the exclusion of insects. 
(5) Substitution of metal, for wooden, spouts, ete., and the use of 
other improved machinery in mills infested with the flour moth. 
(6) Storage in large bulk, particularly valuable against grain moths. 
(7) Storage in a cool, dry repository, well ventilated to prevent 
“heating.” 
(8) The use of naphthaline as a preservative of small samples in tight 
receptacles. 
INVESTIGATION OF INSECTS AFFECTING STORED PRODUCTS. 
The Division of Entomology is engaged in a special investigation of the insects 
that infest stored products, including grain, flour, m: al, patented foods, peas, beans, 
dried fruits, nuts, seeds of different kinds, herbs and dried plants, drugs, leather, 
dried meats, woolen and other fabrics, specimens of natural history, ete. 
Information is desired of anything new or of unusual interest, and correspondence 
is invited. Communications should be accompanied where possible by specimens 
of the insects concerned, with full statements regarding the extent of the injuries. 
Such facts as may be gathered through correspondence will be reserved for publica- 
tion if of sufficient value, but the names of correspondents and of localities infested 
will be withheld unless permission is given for their use in this connection. 
The person to whom this bulletin is sent is respectfully requested to bring the 
matter to the attention of some farmer, miller, or grocer or other merchant of his 
neighborhood who may suffer from the presence of these insects in his granary, mill, 
or storehouse and who may desire advice in regard to the best methods of controlling 
them. 
The experience of persons who have had an apeeriinity to test on a large scale 
the bisulphide of carbon and other remedies for stored-product insects is also 
solicited. 
Address: Division of Entomology, U. S. Department of Agriculture, Washing- 
ton, D, C. 
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