82 A YEAR IN AGRICULTURE 



worms leave the ear and go into the ground, where they 

 make little cells and in these transform to pupae. In about 

 two weeks the next brood of moths appear. There are two 

 or three broods in a year. 



The pest is very difficult to combat. Since the pupae of 

 the last brood hibernate in the ground during the winter, 

 many of them may be killed by deep, late fall plowing. The 

 time of planting should be taken into consideration; since 

 the moths prefer to lay their eggs on the silk, the corn which 

 is in silk when the moths emerge from the ground will be 

 most seriously injured. Early planted corn is less liable to 

 injury from this source. 



XVI. CORN PRODUCTS 



The stalk. Many new uses have lately arisen for corn, 

 in addition to the well known and standard purposes this 

 cereal has long served. Corn pith has lately been utilized 

 as a packing for battleships. The production of cellulose, 

 high explosives, varnishes, etc., are recent uses of pith, and 

 in the manufacture the outer shell and leaves of the stalk are 

 left as by-products. These are finely ground up and put on 

 the market as the "New Corn Product, " which is used as 

 a stock food. The crude stalk has such well known uses as 

 stock food in fodder, ensilage, etc. A cheap grade of papeT 

 can be made from the pulp of the corn stalk. Denatured alco- 

 hol and various food extracts are being made from corn 

 stalks. 



The corn kernel. Besides the common uses of the kernel 



