INSECTS AFFECTING THE GRAPE. 



INJURING THE ROOT. 



The Grape Root-borer 



Aegeria polistiformis. 



The roots of grapes are sometimes found to be 

 attacked by a whitish, cylindrical caterpillar with 

 sixteen legs, which bears a strong, general resem- 

 blance to the Peach-tree Borer. This is the insect 

 named above. " When full grown," according: to 

 Dr. Riley, "the larva measures from an inch to an 

 inch and three-quarters, and it then forms a pod-like 

 cocoon of a gummy sort of silk, covered with little 

 bits of wood bark and dirt. Within this cocoon it 

 becomes a chrysalis which in due time, by aid of 

 rows of minute teeth with which it is furnished, 

 works its way out of the cocoon to the surface of the 

 ground, and gives forth the moth. As with the 

 Peach-borer, this insect requires a year to develop, 

 and is found in its different states of larva, chrysalis 

 and moth, throughout the summer months, and it 

 doubtless also passes the winter as a larva." The 

 moth is a wasp-like creature, black, with bright, yel- 

 low bands across the abdomen. 



Remedies. — This insect is rarely seriously injuri- 

 ous. When a vine shows by its weak or drooping 

 appearance that it is suffering from an injury at the 



