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JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
taken to prevent the importation of infested products into Canada from 
the infested areas in Massachusetts and New York. The first quarantine 
affected com only and was passed on May 19th, 1919. Since that date 
new embargoes have been issued each year which included the new 
areas found infested and also conformed more or less to quarantine 43 
of the United States Department of Agriculture. 
In an endeavour to prevent the further importation of the European 
Corn Borer on shipments of Broom Corn from Europe, etc., instructions 
were issued to all Canadian Corn Broom manufacturers to the effect 
that all importations of broom corn from countries other than the 
United States must be accompanied by a certificate of inspection and 
sterilization if that was considered necessary, issued and signed by an 
officer of the United States Department of Agriculture. It was ne¬ 
cessary to take this action in view of the fact that there were no facilities 
for the sterilization of broom corn at Canadian seaports. 
The European Corn Borer was found in Welland County, Ontario, 
in August 1920, a few weeks later Elgin and Middlesex Counties were 
found infested. During the early fall of that year the inspectors 
stationed at the London, Ont., fair found that it was the usual practice 
for livestock men to feed corn fodder to their cattle, etc. and many of 
them brought corn from their own farms. Some of this fodder was 
found infested and in order to prevent its removal to uninfected areas, a 
ministerial order was placed on the city of London which prohibited 
the removal of corn from the city limits. 
In the following November, Quarantine, No. 1 Domestic was made 
effective. This prohibited the removal of corn from infested townships. 
This quarantine has been amended from time to time in accordance 
with the spread of the insect. In February, 1922, a double quarantine 
was placed on the more heavily infested areas, namely Elgin and Middle¬ 
sex counties, which prevented the removal of corn to the more lightly 
infested districts. 
At the present time (December, 1923) one hundred and sixty-two 
townships covering 12,616 square miles are under quarantine. Eight 
additional townships were found lightly infested during the past scouting 
season and will be added to the quarantined area at a later date. 
The publicity methods followed in connection with the domestic 
quarantine consisted of the issuing of press notices at frequent intervals; 
the distribution of coloured maps, showing the area quarantined, to all 
post offices, banks, railroad stations, express offices, steamship com¬ 
panies, wholesale produce dealers, agricultural societies, and associa- 
