No. 4, Fesruary, 1922] HORTICULTURE 269 



HORTICULTURE 



J. H. GouRLEY, Editor 

 H. E. Knowlton, Assistant Editor 



(See also in this issue Entries 1448, 1459, 1471, 1479, 1498, 1515, 1526, 1545, 1546, 1553, 1591, 

 1654, 1671, 1676, 1684, 1695, 1731, 1743, 1896, 1897, 1899, 1901, 1908, 1976, 2021) 



FRUITS AND GENERAL HORTICULTURE 



1749. Anonymous. Algunas de las mas antiguas y mejores variedades europeas del peral. 

 [Some of the oldest and best European varieties of pears.] Rev. Agric. [Mexico] 6: 204r-205. 

 1 fig. 1921. — The author gives technical descriptions of the fruit of 16 varieties of pears. — 

 J . A. Stevenson. 



1750. Anonymous. Tratamento das mangueiras, [Treatment of mango trees.] Bol. 

 Agric. [Nova Goa] 2: 12-15. 2 fig. 1920. — Directions are given for pruning mango trees so 

 as to secure maximum yields. The necessity of treating pruning wounds is emphasized. — 

 John A. Stevenson. 



1751. Balme, Juan. Algunos datos sobre el cultivo de la pina. [Notes on pineapple 

 culture.] Rev. Agric. [Mexico] 6: 147-151. 5 fig. 1921.— The writer discusses the possibili- 

 ties of pineapple culture in the region between Vera Cruz and Tampico, including a consider- 

 ation of soils, climatic conditions, and varieties. — John A. Stevenson. 



1752. Benaiges de ARfs, Carmelo. Regeneracion del olivar. [Regeneration of olive 

 groves.] Bol. Agric. T^c. y Econ. [Espana] 13: 313-358. 12 fig. 1921.— The olive's impor- 

 tance in Spain is pointed out, and production statistics given. Yields are low, averaging 

 only 806 kgr. of fruit per hectare as against an average of 1500-3000 kgr. in France. This 

 is due to many factors, including excessive interplanting of other crops; pests and diseases; 

 and general neglect. Corrective measures are outlined. — Sooty mold (Anthennaria oleo- 

 eophila), which forms a black crust on the leaves, causes some injury. Copper sulphate is 

 recommended, as well as insecticides, to control insects on the secretions of which the fungus 

 lives. Other diseases are leaf spot (Cicloconium oleaginum), tuberculosis (Bacillus oleae), 

 and root rots {Arynillaria mellea, Polyporus fulvus, and Dematophora necatrix). Control 

 measures are given. — John A. Stevenson. 



1753. Benson, C. H. Report of work at Sitka station. Rept. Alaska Agric. Exp. Sta. 

 1919: 19-21. 1920. — In the strawberry breeding work 1064 new hybrids came into bearing, 

 and as a result of the 1918 breeding 1723 hybrids were set out. A report on raspberries, goose- 

 berries, and currants is given. Crosses made in 1916 between the Cuthbert raspberry and a 

 native yellow salmonberry {Rubus spectabilis) resulted in 1 good hybrid, named Bensonberry, 

 showing characteristics of both parents. Tree fruits were not satisfactory. Armeria formosa, 

 Cerastium tomentosum, Lychnis arkxvrightii, Pentstemon digitalis, and Primula acaulis X 

 elatior are added to the list of herbaceous perennials previously recommended. Of 35 varie- 

 ties of hybrid roses set out in 1917 only 5 were alive in 1919, and these were in poor condition. 

 Rosa rugosa and hybrids are again recommended. Tomatoes and cucumbers were grown in 

 the greenhouse. — J . P. Anderson. 



1754. Bovet, Pedro A. Sobre la estaca-raiz-injerto como medio de atmientar la pro- 

 duccion de injerto sobre membrillo. [An improved method of budding quince stocks.] Bol. 

 Agric. Provincia Buenos Aires 12 : 2-6. 9fiig. 1919. — The author describes a method of bud- 

 ding pear and apple on quince stocks which is said to give much better results than the system 

 of grafting commonly employed. During the winter the stocks are cut back to force a bushy 

 growth, and in the spring soil is heaped around each plant to permit extensive root devel- 

 opment. Buds are inserted in each shoot produced and finally each of these, with a corre- 

 sponding portion of root, is separated for planting. — John A. Stevenson. 



