164 ELEMENT AEY AGRICULTUEE 



they are dug. It matters not if the seed potato be 

 large or small if it came from a hill bearing a large 



Courtesy of U. S. Dept. of Agriculture 



Fig. 89. Colorado potato beetle at work on the plant: a, beetle; b, 

 egg masses; c, half -grown larvae; d, mature larvae. 



yield of fine potatoes. By careful selection, year 

 after year, a farmer can greatly improve his variety 



