October, ’20] 
HINDS: BEAN LADYBIRD 
431 
considerably before the end of the season. We have no information 
as to the limit of flight. 
An important new food plant record is found in the occurrence of the 
beetle in all stages upon cowpeas in one locality. It remains to be seen 
whether cowpeas will constitute a favorable food plant. The growth 
of cowpeas and soy beans is quite extensive in this section of Alabama 
and large truck farmers around Birmingham are deeply interested in 
the production of all varieties of table beans. The problem appears, 
therefore, a serious one for this section and it is possible that the insect 
may spread widely throughout the southeastern states. It has demon¬ 
strated its ability to withstand ordinary climatic, winter conditions 
in north central Alabama and has flourished under our summer climatic 
conditions. The further spread of the pest will be watched closely 
and an investigation of life history and field control has already been 
started. 
It would appear that the introduction of this pest had occurred in 
commercial shipments, either of alfalfa hay or of beans and possibly 
with both materials produced in the infested territory in Arizona, 
New Mexico and Colorado. The possibility of exterminating the pest 
would appear to be slight at this time, and methods of control will, 
therefore, be sought as rapidly as possible. 
Scientific Notes 
The European Corn Borer in Canada. On August 10, the European corn borer 
was discovered for the first time in Canada. Larvae about half an inch in length were 
found on that date near Lorraine Station, Welland County, Ontario, by Messrs. 
Keenan and Simpson of the Division of Foreign Pests Suppression. The infestation 
at this point was light but more eastward, particularly in the vicinity of Ridgeway 
and Chrystal Beach, Ont., the infestation was heavier. Larvae collected at these 
three points were determined by Dr. J. H. McDunnough, chief of the Division of 
Systematic Entomology, as Pyrausta nubilalis, and this determination has since been 
confirmed by Mr. D. J. Caffrey, in charge of the European Corn Borer Laboratory, 
Arlington, Mass. 
Since these first infestations were discovered, Mr. L. S. McLaine, chief of the 
Division of Foreign Pests Suppression, has undertaken much further scouting in other 
parts of Ontario and this work is still under way. From present knowledge Mr. 
McLaine has given me the following statement: 
“When the borer was discovered at Ridgeway and Chrystal Beach an effort was 
made to find the limits of the infestation. According to latest advices this extends 
from Fort Erie on the east to Dunnville on the west along the Lake Erie shore and 
about twenty miles inland. On August 23, larvae were received from a farmer, living 
near St. Thomas, Ont. Scouts were immediately despatched to this new infestation 
and their first report indicated that 5 per cent of the corn plants in the fields examined 
were infested. The infestation in western Ontario has not as yet been defined, but on 
September 16 it composed all of Elgin and Middlesex counties and a portion of Oxford 
County.” 
