561 



Remedy: Spray with No. 13. Hand picking is the most 

 successful. 



a Sphinx moth with wings expanded. f> Pupa or chrysalis. c Young caterpillar. 

 d Full-grown caterpillar in act of feeding. 



PEAR AND CHERRY SLUG (Selandria cerasi). 

 Description and Life History. 



This is a small black saw-fly, measuring about a third of an 

 inch in length, with two pairs of transparent wings, short antennae, 

 and short thick-set body, which is furnished in the females with a 

 fine saw-like appendage (from which this group of wasps take 

 their popular name) with which it cuts a slit in the leaf and 

 deposits from a dozen to eighteen eggs beneath the epidermis. In 

 a few days the small, legless, olive-green, slug-like grubs emerge, and 

 commence to feed upon the upper surface of the leaf, which they 



