208 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



the caterpillars love warmth and moisture. It has been found 

 that salting the hay for 2 or 3 feet at the bottom will prevent 

 injury, and many farmers salt their clover-hay, using about two 

 quarts of salt to the ton. 



The Clover Leafhopper * 



The Clover Leafhopper is an insect which may be found in 

 clover and alfalfa fields over a wide range. It is a very small 

 insect, like most common leaf hoppers, and its injury is widely 

 distributed, so that it often attracts no notice, but is none the 

 less real. The insects are slender forms, one-eighth inch in 

 length and of a grayish color with darker markings. They hop 

 actively when disturbed and may, at times, be noticed in clouds 

 when one walks through a clover field. 



Injury. The injury is caused in two ways. First, they suck 

 the sap from the stems and foliage of the plant and, later, they 



Gibson, 1. c.) 



puncture the tissues and deposit their eggs within them, the 

 result being irregular swellings which interfere with the growth. 



Life History. There are at least three generations but they 

 are more or less indistinguishable on account of over-lapping. 

 They hibernate as adults. The young or nymphs resemble the 

 adults in a general way but are greener in color and less active. 



Control. Clean culture, burning of rubbish in the fall and 

 early cutting of the clover and alfalfa as well as close pasturing 



* Agallia sanguinolenta Prov. Family Jassidce. 



