SPANWORMS EATING THE LEAVES 



283 



Fig. 411. — Adult of the Cran- 

 berry Spanworm. Original. 



Spraying with arsenical poisons is a ready remedy. Usually the 

 currants are not ripe when the worms appear, and therefore poison 

 sprays may be used safely. 



The Cranberry Spanworm {Chora pampinaria Guen.) 

 The leaves of cranberry, asparagus, cotton, strawberry, apple, pear, 



clover, and others are sometimes eaten by a brownish or olive span- 

 worm, 1| inches long when mature. 



Its body is streaked and mottled 



with hghter and darker shades. On 



the back, about one third of the way 



to the rear of the head, are two low 



black tubercles, and near the hind 



end are two more. There are two 



pairs of fleshy false legs near the hind 



end, and three pairs of true legs close 



to the front end. The worms have 



a habit of resting motionless, hold- 

 ing fast to a stem by the hind legs, the body projecting at an angle. 

 The adult is a gray moth marked with many spots and zigzag lines 



of black and brown. There are two generations annually, larvae 



appearing in late June and 

 again in August. 



Dusting or spraying with 

 arsenate of lead or Paris green 

 will poison the worms. 



The Elm Spanworm 



{Ennomos subsignarius Hbn.) 



In June the larvae of this 

 moth may be found on the 

 foliage of a great variety of 

 trees, including apple, pear, or other fruits as well as forest trees. 

 Usually they are brown, but sometimes green, look much like a 

 twig, and have three low tubercles on the back, one near the hind 



iiG. 412. — Adult of the Elm Spanworm. 

 Original. 



