Eighth Report of the State Entomologist. 257 



wmg-covei's and wings, and brown eyes and feet. Its life-history 

 closely resembles that of Erylhroneura vltls, of the grape. 



Perhaps the best preventive of injury by this insect is an infii- 

 sion of tobacco, prepared in the following manner: Wtere the 

 tobacco stems can be procured, place some of them in a vessel of 

 the capacity of a common pail and pour boiling water upon them 

 untU they are covered. Allow it to stand over night, and w^hen 

 used dilute it with five times the quantity of water and apply it 

 to the underside of the leaves with a garden syringe, or force 

 pump with a rose nozzle. The application should be made in the 

 evening, or early in the morning, and, particularly, early in the sea- 

 son, before the injuries become noticeable except from close exam- 

 ination, and as soon as the young lai'va?, looking like little white 

 specks, are discoverable on the underside of the leaves. The sho^ver- 

 ing should be repeated from time to time so long as the insects. 

 remain or the effects of their presence are noticeable. 



I had intended asking your attention to a few other insect pests- 

 which are annually demanding heavy tribute from you, and which 

 you are voluntarily paying, — not necessarily, for recent discov- 

 eries in economic entomology have given means which only need tO' 

 be properly used in order that the burden of insect injuries shall: 

 be materially lightened; but I have already exceeded the tinie- 

 allotted for my paper. 



May I hope that the details presented — some of which I fear- 

 may have been found dry — may not have greatly wearied you.. 

 33 



