44 AGRICULTURE OF MAINE. 



York. The next places in which infections were found were 

 in the vicinity of Springvale and Sanford. From here Mr. 

 Posey worked north, keeping at a limited distance from the 

 New Hampshire line. His results show conclusively that the 

 disease is present to a greater or less extent in almost every 

 pine growing area in Maine. After reaching the locality of 

 Rangeley lakes, inspection of the interior and coast line of the 

 state was made. The farthest north that the disease was found 

 was in Millinocket. Due to limited time, Mr. Posey did not 

 work farther north than this point ; but, inasmuch as the dis- 

 ease has been found in Ontario, there is little doubt that it is 

 present in the pine growing sections of Aroostook county and 

 probably across the line into Canada. 



Some of the towns in Maine, found to be infected, are as 

 follows : Kittery, York, Eliot, Sanford, Springvale, Bidde- 

 ford, Saco, Lovell, South Paris, Bethel, Gilead, Rumford, 

 Byron, Rangeley, Greenville, Millinocket, Dover, Corinna, 

 Pittsfield, Waterville, Fairfield, Bangor, Bar Harbor, Ellsworth, 

 Rockland, Rockport, Vinalhaven, Islesboro, Augusta, Gardiner, 

 Wiscasset, Bath, Brunswick, Lewiston, Leeds and Portland. 

 Many other infections were found in the smaller towns and 

 plantations, but those mentioned above give an idea as to the 

 extent to which the disease threatens our pines with destruc- 

 tion. 



In view of the fact that lumber owners and farmers owning 

 more or less extensive plantations of white pine, are continually 

 inquiring in regard to this disease, a short description of this 

 pest is included in this report: 



INTRODUCTION. 



The disease afifects only five leaved pine and, consequently, 

 is found only on the white pine in this state, which is by far 

 our most valuable pine. It does not live on the two or three 

 leaved pine. It is found, however, in two stages, for it requires 

 an alternate host plant upon which to pass the second stage of 

 its life history. This is the Ribes family, or what we commonly 

 call currants or gooseberries, both wild and cultivated. This 

 is similar in many respects to the two- fungi wheat rust and 

 cedar-apple rust, which also require two distinct families of 

 plant life upon which they complete their entire life history. 



