82 TWELFTH ANNUAL REPORT OF THE 



soon become infested, and so the worst of them were taken up and burned, 

 their places being filled again with healthy plants. 



A thorough examination was then made of all the white pines, and 

 wherever any sign of this pest was found the young tree was sprayed with 

 a kerosene emulsion of medium strength. This removed all traces of the 

 insect, and the stems soon showed a clean, healthy color. The young trees 

 which were attacked were all in one place near the Harrietstown road. 

 The large area of white pines planted on the ridge a half mile or so to the 

 south was free from this evil. As this insect seems to confine its work to 

 the white pine, the Scotch pines in the same plantation escaped, and show 

 no sign of disease from this or any other cause. 



The growth of the Norway spruce in this plantation has not been so 

 encouraging. The plants, though alive, seem to stand still, or, at best, 

 put on short leaders. In places, where the location is favorable, some of 

 them make a promising appearance; but on the whole their behavior is 

 disappointing. It may be that the soil is too poor and sandy; and, I noticed 

 that on many of these plants (Norway spruce) the leaders were cut back 

 by the spring frosts. As the use of this species in subsequent plantations 

 has been attended by similar results we have decided to discontinue its 

 propagation in our nurseries. At the same time, we have on hand in our 

 nurseries 439,080 plants of Norway spruce, three and four years old, of 

 which 100,683 must go to the planting grounds next spring, and hence we 

 cannot discontinue its use until this stock is disposed of. It is hoped that 

 by selecting sites where the soil is better adapted to this species it may 

 develop a more satisfactory growth. 



The large plantation near Paul Smith's was made in the spring of 1905. 

 The species and quantities used were: 300,000 white pines, three years old, 

 once transplanted, imported from the nurseries of J. Heins' Sons, Halsten- 

 bek, Germany; 25,000 Scotch pines, four years old, once transplanted, pur- 

 chased from the Evergreen Nursery Co., Sturgeon Bay, Wis.; 20,000 white 

 pines, four years old, once transplanted, from the nurseries of D. Hill, 

 Dundee, 111.; 5,000 Scotch pines, twenty to thirty inches high, from R. 

 Douglas! Sons, Waukegan, 111.; and 5,000 Norway spruce, four years old, 

 twice transplanted, from the exhibition nursery maintained by this 

 Department at the St. Louis Exposition; in all, 355,000 plants. 



