INSECTS INJURIOUS TO CORN 



183 



when the leaves unroll they bear horizontal rows of holes. The 

 caterpillars are exceedingly variable in color, being from a light 

 green through rose color and brown to almost black, and either 



FIG. 135. t'orn car-worm. Husk of ear of sugar-corn torn open, showing 

 worms at work on tip and hole through which a full grown worm has left. 



striped, spotted or perfectly plain. They become full grown in 

 about 2 weeks and are then about 1} to 1 inches long. When 

 done feeeding the caterpillar burrows 2 to 5 inches into the soil 

 near the base of the plant. A cell is then constructed which runs 

 back to within a half inch of the surface of the soil, so that the 



