MAINE AGRICULTURAL EXPERIMENT STATION. 20/ 



caterpillar, i|- inches long when .full grown. Its head is shiny 

 yellow with one dark blotch on each lobe. Its body is mottled 

 grayish brown above, and pale grayish green beneath. The 

 legs are pale. This caterpillar feeds both upon the foliage and 

 the fruit, (fig. 55). The pupal stage is passed in the ground. 

 It is a glistening brown object about f inch long. The mature 

 insect is a brownish moth expanding about 1^ inches. 



REMEDIES. 



Arsenical sprays applied for other species will control this 

 one also. As this caterpillar is very readily dislodged, jarring 

 the tree and killing the insect on the ground is a convenient 

 combative measure. 



Green Fruit-Worms. 

 Xylina antennata Walker, X. laticinerea Grote, X. grotei Riley. 



These three insects resemble each other so closely in appear- 

 ance and habit that they can be treated under one heading. In 

 the larval stage light yellowish or pale green caterpillars with 

 cream colored stripes lengthwise their bodies, attaining from 

 one to one and a half inches in length when full grown. When 

 young they feed upon the leaves and buds and when they are 

 about half grown they attack the green fruit in June while it is 

 still small, eating into it much as does the mottled fruit cater- 

 pillar shown in Fig. 55. When full grown, late in June or early 

 in July, they bury themselves in the earth where their pupal 

 stage of about 3 months is passed. At the close of this trans- 

 forming rest they emerge as moths which hibernate in the adult 

 stage, laying their eggs the next spring on the bark. 



1 

 MEANS of control. 



When the green fruit-worms are young and feeding on the 

 buds and newly opened leaves, an arsenical spray or dilute lime- 

 sulphur solution should destroy them. Later when they begin 

 feeding on the fruit it is very difficult to kill them with poison. 



