28 Maine: agriculturai, experiment station. 1913. 



A number of egg masses collected in Orono, late in the sum- 

 mer showed evidence of having been affected by Qgg parasites, 

 but unfortunatelv none was reared. 



REMEDIAL MEASURES. 



In timber lands it would be quite impracticable to adopt 

 measures for the control and eradication of the spruce bud- 

 worm other than in aiding in the spread of the beneficial para- 



Fig. 2. Pwipla conquisitor. a. larva; h. head of same; c. pupa; di 

 adult female, — all enlarged. (After Howard. Technical Series, No. 5,. 

 1897.) 



sites. In limited areas, however, as in the case of the protec- 

 tion of ornamental trees of an estate or the young trees in a: 

 plantation it would be quite easy to use an arsenical spray 

 which would keep the pest under control. This is rendered all 

 the easier b}' the fact that we are here dealing with a native 

 insect, which is subject to attack by native parasites and which,. 

 if we may judge by its history in the past, will succumb to its 

 natural enemies within a very few years. If we can restrain its 

 activities for a season or two it appears probable that we may 

 not be troubled bv it asain for decades. 



