Insects Injurious to the Potato and Apple, 559 



INSECTS INJURIOUS TO THE POTATO 



AND APPLE. 



BY GEORGE H. PERKINS, PH. D., 



PBOFESSOK OF ZOOLOGY JN THE UNIVERSITY OF VERMONT 

 AND STATE AGRICULTURAI> COLLEGE, 



Every person who attempts to cultivate any kind of tree 

 or plant very soon iinds that if he would have even moder- 

 ate success, he must watch for and drive away, or destroy, 

 many kinds of insects. In the cultivation of many plants, 

 and those which are most important economically are 

 among the number, the fight with insect foes is an un- 

 ceasing one, and unless the agriculturist have some knowl- 

 edge of the habits of his foes, and of remedies against their 

 attacks, he will be very likely to be beaten. 



Proper seed, suitable fertilizers, the best time to plant, 

 are all important, and without knowledge of these the far- 

 mer cannot succeed, but, after all, of what avail is the 

 fullest knowledge of all these things, if there be utter igno_ 

 ranee respecting the character and habits of the insects that 

 stand eager to devour every blade as soon as it appears 

 above ground, every bud as soon as it unfolds, or even be- 

 fore ? All preliminary work, however well done, is of no 

 value whatever if the crop be wholly destroyed before it 

 can be gathered. Vigilance, energy, knowledge, are all 



