442 EXPERIMENT STATION RECORD. 



in cities and towns. Some of the atlvantnses of the dwarf trees are the early 

 Itearing hahit, small size, high quality of the fruit, suitahility for suhurban 

 places, as orchard fillers and as illustrative material for school gardens, and 

 for covering walls and fences. Among the disadvantages are the greater ex- 

 ])ense of the trees, greater care required in their management, and their shorter 

 life. 



Fruits for the Hawaiian Islands, W. T. Brigham {Hatraii. Forester and 

 A[/r.. 3 (190G), No. 10. pp. 289-311, figs. ;2).— In a paper read before the Farm- 

 ers' Institute of Hav^-aii brief mention was made of about 100 tropical and sub- 

 tropical fruits that either have been or should be cultivated in the Hawaiian 

 Islands. The paper is followed by a brief discussion. 



Suggestions on the renewal of the peach industry in New Jersey, G. F. 

 W.VKUEN (Xcw Jersey .S7«.s-. Bid. 197, pp. .'i6. fins, 19). — During the period be- 

 tween 1890 and 1900 it appears that the number of peach trees in New Jersey 

 decreased 38 per cent, due chiefly to the work of the San Jose scale but also 

 to poor tillage and other causes. The present bulletin shows the adaptability 

 of different portions of the State to the peach industry and encourages in- 

 creased planting. 



Directions are given for the culture of peaches from planting to marketing, 

 together with results of experiments in planting different kinds of pits, prun- 

 ing the tops to different degrees at transplanting time, dipping with lime, salt 

 and sulphur mixture, and determining the amount of plant-food removed by a 

 10-year-old peach tree during its growth. 



It appears that about three-fourths of the peach trees of the State are situ- 

 ated on the brownish-yellow, chestnut soils of the hills and mountains of North 

 Jersey. Second in importance to this soil are the gravelly loams of South 

 Jersey. Good peaches are also grown on the sandy trucking soils of the State. 



Out of 620 pits of natural seedlings planted 108 trees were secured, while 

 from 321 pits from budded trees only 7 trees were secured, indicating that in 

 nursery work the pits of seedlings are best for growing stocks. One-year-old 

 trees proved better than June-budded trees for transplanting in the orchard. 

 When trees were dug and the roots exposed to the sun for 15 minutes to li 

 hours before planting the number of trees making a good growth was de- 

 creased from 33 to (iii per cent. If the trees nuist be planted when the ground 

 is not moist it is advised that the roots be dipped into water before planting. 



Owing to the wide spread of the San Jose scale it is advised that the tops of 

 the trees be dipped in a lime, suli)hur and salt solution before planting. Ex- 

 periments were made in diiiping trees in single and double strength solution, 

 which showed that no injury results unless the buds have started into growth, 

 in which case the buds are killed. If root lice are present the roots of the 

 trees should also be dipped. The trees should be examined for borers and those 

 found dug out. Measurement of the growth of twigs at different periods dur- 

 ing the season indicated that about half the growth was completed by the mid- 

 dle of May and about four-fifths by the middle of June, showing that cultiva- 

 tion for the purpose of benefiting the tree should be done early in the season, 

 commencing before the time corn is planted. 



The total weight of the wood, prunings. r(X)ts, leaves, and fruit produced by 

 a peach tree during 10 years' growth was found to be GIO lbs., of which about 

 2.8 lbs. was nitrogen, 0.7(5 lb. phosphoric acid, and 1.7 lbs. potash. It is calcu- 

 lated on this basis that an acre of trees set IG by 1."i ft. would utilize 510 lbs. 

 of nitrogen, 838 lbs. of i)hosphoric acid, and 307 lbs. of potash in 10 years. 

 The average per .icre for the first 4 years would be .33 lbs. ot nitrogen, 8 lbs. 

 of phosphoric acid, IS lbs. of potash, and for the last G years 04 lbs. nitrogen, 



