10 



THE BOLLWORM ON COTTON. 



Noticeable injury to cotton usual 1}' begins with the August genera- 

 tion of larvae. A few boll worms may have been found in cotton 



Fig. 3. — Young corn plant showing injury to " h\u\ " by bollworm— natural size (original). 



earlier in the season, but the amount of injury done by these is of 

 comparatively little importance. 



191 



