CLOVER INSECTS 123 



eggs through the winter; during the latter part of 

 March or first of April the eggs hatch and the ants 

 transfer the young Hce to the roots of smartweed, 

 crabgrass, or purslane along which the ants have 

 previously made galleries ; two or three generations 

 of lice are produced here, but as soon as the young 

 corn comes up the ants make tunnels along the roots 

 of the corn plants and bring the lice over from the 

 weeds ; during the season there may be many gener- 

 ations of the lice; they suck out the juices of roots 

 and starve the plants. 



Control — Rotation of crops is of advantage, no 

 crop other than corn being attacked except cotton; 

 dilute Yx pound of oil of tansy with 2 quarts of 

 alcohol and i quart of water and thoroughly mix 

 this with 100 pounds of bone meal; distribute it 

 over an acre with a fertilizer attachment to the 

 planter. 



The chinch bug (Blissus leucopterus) 

 The pest often attacks corn as well as wheat and 

 becomes very injurious where it is abundant. It 

 has been discussed under wheat pests. 



OTHER INSECTS INJURIOUS TO CORN 



Stalk-borer (Papaipema nifela). 

 Seed-corn maggot (Phorbia fusiceps). 

 Northern corn root-worm (Diabrotica longicor- 

 nis). 



Fall army worm (Laphygma friigiperda) . 



CLOVER AND ALFALFA PESTS 



Clover root-borer ^^ (Hylastimis obscurus) 



Order — Coleoptera 

 A small, dark-brown beetle i-io of an inch long 



15 Folsom — Illinois Expt. Stat, Bull. 134. 

 Howard — U. S. Bu. Ent, Circ. 4. 



