SB 

 818 

 C578 

 ENT 



o. 114. 



Issued November 24, 1909. 



United States Department of Agriculture, 



BUREAU OF ENTOMOLOGY, 

 L. O. HOWARD, Entomologist and Chief of Bureau. 



THE EUONYMUS SCALE. 



(Chionaspis euonynd Couistock.)" 



By J. Ct. Sanders, 31. A., Asftiiitant. 



INTRODUCTION. 



The most serious enemy of the various species and varieties of 

 Euonymus in the eastern United States is commonly known as the 

 Euonymus scale. The injuries occasioned by the attacks of this pest 



Fig. 1. — A twig of Euonymus moderately infested with Euonymus scale. (Original.) 



almost preclude the growing of these beautiful plants for hedges and 

 borders, while the dire experiences of some gardeners have caused 

 them to abandon entirely the use of these plants for decoration. 



« First described in the Annual Report of the Commissioner of Agriculture for 

 1880, p. 313 (1881). 



12597— No. 114—09 /, 



