SNOUT-BEETLES AND GRUBS EATING LEAVES 1638 
swarm on the plants, eating the freshly expanded leaves and gnawing 
the surface of stems in such way as to kill the growth above. 
Fic. 175.— Pupa of the Alfalfa 
Fic. 174.— The Alfalfa Leaf-weevil. En- Leaf-weevil. Enlarged and 
larged and natural size. Original. natural size. Original. 
The adult is one eighth to three sixteenths of an inch long, and when 
freshly emerged is brown. It grows darker in a few days. Its body is 
covered with black and 
gray hairs, giving it a 
mottled appearance. 
The grub is one fourth 
inch long, tapering toward 
each extremity, and has 
a light stripe down its 
back. 
Remedial measures 
thus far devised include: 
thorough disking early 
in the spring so as to 
induce quick, vigorous 
growth of the plants; 
the use of a spike-tooth 
Fic. 176.— Egg puncture harrow combined with a Fis. 177. — Feed- 
: vork falf: * i ing punctures of 
and work of the Alfalfa }rush drag immediately a AIGA, eae 
Leaf-weevil. Original. the Alfalfa Leaf- 
following the first cutting = weevil. Original. 
