usually is placed under one of the lobes at the blossom end of the berry (fig. 42) 

 but sometimes is elsewhere on the surface. More than one or two are seldom 

 found on a berry unless the infestation is very severe. Fig. S shows an egg turned 

 dark by parasitism, and fig. T the shell of a hatched egg. 



Egg laying begins when the small berries start to grow and sometimes con- 

 tinues till late August. The normal eggs hatch in about five days and eggs 

 parasitised by Phanerotoma or Pristomeridia in about eight days. 



CRANBERRY FRUITWUR.M 

 Fig. S. Egg blackened by Trichogramma parasitism. 

 Fig. T. Shell of hatched egg. Greatly enlarged. 



Greatly enlarged. 



THE WORM 



The normal mature worm (fig. 43) is about hall an inch long and is green. 

 often tinged with reddish on the back. The head is yellowish. The parasitised 

 worms seldom become much over a third of an inch long. 



The caterpillars are generally most active from about July 12 to about August 30, 

 but often some work in the berries well into September. When through feed- 

 ing, they go down to the sand under the vines, on or near the surface of which 

 they make oval cocoons (fig. 44) of sand and silk or of fallen cranberry leaves 

 webbed together. Those of the normal worms generally are a little over three- 

 eighths of an inch long, but those of parasitized ones are smaller and frailer. 

 They are not impervious to water, for when submerged they nearly fill up in 

 about five days. The worms in them generally are not much affected by cold 

 water and some live through the winter under bog flowage. 



THE PUPA 



Pupation occurs within the cocoons in late May and June on dry bogs and bogs 

 drained of their winter water before mid-April. The pupa is pale greenish at first but 

 soons turns yellowish brown and becomes dark brown before the moth emerges. 



THE MOTH 



The moths occur from very late May till after mid-August. They hide among 

 the vines during the day and are hard to flush, so even when abundant they are 

 seldom seen by growers. They are very active in calm evenings and may be seen 

 at dusk hovering over the vines and alighting occasionally to lay eggs. They 

 have been known to fly 272 feet in one flight and may travel surprisingly far 

 during their life and come to bogs from considerable distances. 



The moth (fig. 45) expands about two-thirds of an inch. The forewings are 

 mostly dark grayish brown above with a slight pinkish tinge, each having two 

 whitish areas, one toward the base and one running back from beyond the middle 

 of the front margin, there being two dark dots in the latter. The under side 

 of the forewings and both sides of the hindwings are light brown. 



