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The female moth deposits her eggs on the grain in the fiekl 

 or in the granary. The eggs may be deposited siugley or in 



chisters just under the thin mem- 

 branes at the base of the kernel of 

 corn or between the rows. The 

 eggs hatch in a few days into min- 

 ute active larvae, that are frequent- 

 ly seen suspended by a delicate 

 silken thread. They soon find a 

 tender place and enter the kernel 

 of corn or wheat. The hole in the 

 grain made by their entrance is 

 so small as not to be readily no- 

 ticed, or it may be closed up with 

 excrement. The larva? mine and 

 feed upon the interior of the grain, 

 and in some cases leave only the 

 outer coat entact. When full 

 grown, they cut a circular hole 

 through the skin, but do not dis- 

 turb the plug. They then spin a 

 delicate cocoon within the kernel, 

 and inside of it turn to the pupa 

 stage. In a few days or weeks, 

 according to the climate, the 

 adult moths appear and lay the 

 eggs for another brood. But one 

 larva is found in a grain of wheat ; 

 but two or more may occur in a 

 kernel of corn. The number of 

 broods per year varies from two 

 in the northern states to seven or 

 eight in the southern states. In 

 this state one can find the insect 

 in all stages in infested grana- 

 ries. 



The appearance of an ear of 



Fig. 11. Ear of corn show- corn after the moths have emer- 

 ing work of the Angoumois i • i • n tt rf • 



Grain Moth. ged is shown xn ngure 11. uram 



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