168 SWEET CORN 
acres and never cultivated it once, and then he expressed 
himself that there was no money in growing it. 
Sweet corn to be fit for eating or canning must be 
harvested when the shucks are green and while the 
grain is in the milky stage. It is of no value for eating 
or canning when the shuck is yellow and the grain is 
hard. It must be brought to the factory the day har- 
vested. If allowed to stand in the wagon over night it 
heats and becomes valueless. While it is true that fac- 
tories hold it over the night, yet they put it on cement 
or ventilated floors, where it is spread out thin so that 
air reaches into the interior of the pile and where there 
is no danger of its heating. 
Sweet corn has an enemy in the worm found in the 
end of the ear at certain seasons of the year, and which 
is said to be the same worm that destroys the cotton 
crop, the Bollworm, which does serious damage to its 
ears. While this worm is found to some extent in all 
sweet corn, it is chiefly found in sweet corn grown in 
warmer latitude. For this reason sweet corn grown 
south of a line parallel with the Ohio river cannot be 
grown for or handled by canning factories with profit, 
as the work of removing the corn damaged by the worm 
adds too much expense to the finished product. 
In the sweet corn growing section this worm appears 
late in the season, but it has been known to make its 
appearance before the season was more than one-half 
past, and to put a complete stop to further operations of 
factories. It always appears to a considerable extent in 
late planting. For that reason sweet corn for canning 
purposes should never be planted later than June 15 to 
