120 CRANBERRY CULTURE. 



If you go over your vines about the middle of June, 

 and look carefully at the tips of the growing shoots, you 

 will notice that some of the small leaves at the end are 

 closed together. These leaves have much the same ap- 

 pearance as those drawn together by the vine worm when 

 it first commences to work in the tip of the shoot ; but if 

 you examine them, you will find that there is no web, and 

 that the leaves have grown out of shape. 



Within some of the smaller leaves, protected by those 

 that are closed together, you will find the author of the 

 mischief, a small, orange-colored maggot, without legs, 

 and measuring, when full grown, but about 0.6 of an inch 

 in length. 



This maggot, when it first hatches, is white, but its 

 color increases as it grows, until, when full grown, it is 

 orange. 



By the 30th of June, most of them w^ill have spun a 

 little oblong cocoon within some of the small leaves at 

 the end of the shoot. This cocoon resembles white tissue 

 paper, and within can be found the orange colored pupa. 

 In this state it can readily be distinguished from the 

 maggot by the blunt head, whereas, in the maggot, both 

 ends are tapering. 



After remaining in the cocoons about twelve days, the 

 perfect insect, a gnat, comes forth. This gnat is 0.4 of an 

 inch in length, its body is orange, and its wings transpar- 

 ent. This gnat lays the eggs for another brood of mag- 

 gots. The egg of this insect is unknown to me, the 

 insect being so small, that the egg must be quite minute. 



The maggot only works among the minute tender 

 leaves at the end. of the young shoots. They have no 

 jaws, and " must suck in the sap and moisture through 

 the mouth, or absorb it through the skin. They make no 

 excrement." 



This insect first came under my observation in June, 

 1866, at Sandwich. It was very abundant at that place. 



