Farm Management and Farm Crops in 



protein than common wheat. It is harder to grind and 

 more sticky when made into dough. But its stickiness 

 makes it so suitable for the manufacture of macaroni 

 and spaghetti that American macaroni is fast displacing 

 the imported article. Bread made ffOm durum wheat 

 flour is more nutritious than other bread, but it has a 

 slightly yellowish color. 



The two chief insect enejnies of wheat are the Enemies 

 chinch bug and the Hessian fly (Figs. 89 and 90). 

 The experiment stations of the Middle West breed 

 the germs of a disease that is very destructive to 

 chinch bugs. They distribute these germs to farmers 

 whose fields are attacked. If the season is a wet 

 one, the disease will destroy most 

 of the bugs. In dry seasons it 



U. S. D. A. 



FIGS. 89 and 90. Two of the worst crop pests : Fig. 89 (left), the adult long- 

 winged form of the chinch bug, much enlarged. The chinch bug is especially 

 the enemy of small grains and forage crops. Fig. 90 (right), the adult male 

 form of the Hessian fly, much enlarged. This wheat pest is supposed to 

 have been brought to America in straw supplied to the Hessian troops 

 during the Revolution. 



