14G 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
chusetts, were on display in three of the main towns. During the week 
of April 23rd to April 28th, the burning campaign was made. During 
this week five federal men with their own cars, each covered a district 
of the county for the purpose of visiting individual farms where need for 
clean-up was evident. They covered a certain territory each day and 
carried printed instructions to leave with the farmer. This informed 
him of the purpose of their visit and what it was desired to have done, 
making their work effective even when the farmer himself was not found 
at home. At the end of the week, these men reported that with few 
exceptions, the farmers had entered into the work with determination, 
and that perhaps eighty percent of all crop remnants, which could be 
burned, had been consumed by fire. 
The Outcome 
Early in May the State Corn Borer Investigational Laboratory was 
established at Geneva, Ohio, and the men at this laboratory made an 
earnest effort to determine the outcome of the burning project and what 
it meant in reducing the infestation if any, over what it was in areas not 
covered by this campaign. They examined numerous fields for infesta¬ 
tion in Ashtabula County and compared them with the infestation found 
in Lake County, Ohio, which is the adjoining county west, where no 
burning had been done. In 1922 Lake County stood second only to 
Ashtabula County in intensity of stalk infestation. The result of the 
1923 examinations showed that the burning campaign had without 
question been effective in reducing the infestation under its normal 
increase. It had not been effective in preventing a strong increase. 
Instead of Ashtabula County being the heaviest infested county at 
present, Lake County now bears that distinction, it having about 1.5% 
as much stalk infestation as Ashtabula now has. This appears to be due 
to the burning campaign. 
In searching for a reason why the burning was not more effective, 
we are forced to conclude that though 80% of the stalks were burned, 
probably 40% of the crop of borers escaped in the stubble, and stalks 
handled in such a way that burning was not practical. It is also im¬ 
portant to remember that if the corn borer is capable of migrating across 
Lake Erie, any burning campaign on a scale as small as county-wide, 
will be rendered less effective because of unburned areas to the east and 
west. Migration of the moths from these areas would have its effect. 
The above results, which may be classified as satisfactory but not 
effective in themselves, were obtained in a county where corn is cut 
