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Chapter VI. 

 SOME IMPORTANT APPLE INSECTS IN MASSACHUSETTS. 



H. T. FEBNALD, PHOFESSOR OF ENTOMOLOGY, MASSACHUSETTS AGRICUL- 

 TURAL COLLEGE. 



During the last decade, apple growing in Massachusetts has 

 developed greatly. With this growth of the industry has also 

 developed an increased interest in the insect pests of the apple 

 and in the methods for their control. Many persons spray 

 their trees regularly, finding this the only way by which crops 

 of good fruit can be obtained; and while this is only one 

 factor in making a success of fruit growing, it is at least an 

 important one. 



Fifteen or twenty insect enemies of the apple are abundant 

 in Massachusetts, and to obtain control over them no one 

 treatment is sufficient, for while several can be handled suc- 

 cessfully in the same way, others will entirely escape. In fact, 

 in controlling insects the only rule is to " make the punish- 

 ment fit the crime." 



Some apple insects attack the roots; others the trunk and 

 branches; others the buds and leaves; and others the fruit 

 itself. Fortunately, root-attacking forms are seldom or never 

 abundant enough in this State to become serious pests, and 

 only a few are of importance on the trunk and limbs. i 



Insects attacking the Trunk and Beanches. 

 The Round-headed Apple-tree Borer. 

 The adult of this insect is a beetle not often^ seen, but 

 nevertheless quite abundant. It attacks the pear, quince, 

 thorns, mountain ash and a few other trees as well as the 

 apple, these often serving as a source of supply of the insect 

 from which the apple is kept stocked. Such trees therefore 

 should either be cared for like the apple or not be allowed to 

 grow near the apple orchard. 



