once, or should be kept screened until the midsummer following 

 as some of the weevil will not be ready to emerge until the follow- 

 ing spring. 



Plantations, whether known to be infested or not, and natural 

 woodlands in the vicinity of plantations, should be inspected at 

 least twice during the summer (late in June and again about the 

 middle of July) and all wilted leaders collected and either 

 burned at once or confined in screened containers as recommend- 

 ed above. It should be borne in mind that weevils develop just 

 as readily in natural growth of pine where these occur in the 

 open, as they do in planted trees. The adults are equipped with 

 wings and are capable of flying for a considerable distance, so 

 that no matter how clear of dying leaders a plantation be kept, 

 it will certainly become reinfested if the weevil breeding in the 

 woodlands of the vicinity are not also destroyed. Above all 

 things, it should be borne in mind that the mere removal of the 

 infested leader does no good for the insects will breed just as 

 readily in one broken off as in one still attached to the tree. It 

 must either be destroyed by burning, or screened so that the 

 emerging beetles cannot escape to infest new trees. 



In plantations where an infestation is thoroughly estab- 

 lished, or in a region in which the weevils are numerous, the 

 collection and treatment of infested terminals should be sup- 

 plemented by other measures to prevent, in so far as is possible, 

 the beetle from depositing its eggs. One means to this end con- 

 sists in the collections and destruction of the weevil while they 

 are on the terminals preparing to oviposit. With but little 

 practice the insects can be readily seen upon the leaders just 

 below the terminal group of buds. If the tree is slightly jarred 

 the weevils will release their hold of the stem and drop to the 

 ground. Advantage may be taken of this habit in collecting 

 them. If an insect net or a light vessel containing a small quan- 

 tity of kerosene or crude petroleum is held at one side of the 

 leader, and the other side is tapped with a stick, the insect will 

 nearly invariably fall in the receptacle. If an insect net is used, 

 this should be emptied from time to time in a vessel of kerosene 

 or petroleum, a thorough bath which is always fatal. This 

 collection and destruction of adults should be repeated at inter- 

 vals of a week or ten days during the height of the egg laying 

 period. In southern Maine this would usually be from the be- 



