1!>-01 HORTICULTURE. 833 



already In the soil, taking into consideration the fact that one of the two seeds 

 contained in the bur normally sprouts during the first season while the other 

 germinates the following season. 



Dodder in Idaho, B. F. Shkkhan (Idaho Agr. Col. Ext. Circ. Jfl (1920), pp. 

 11, figs. 3). — ^Dodder, a serious weed in the clover and alfalfa seed-producing 

 sections of the State, is described and control measures indicated. 



HORTICULTURE. 



Practical amateur gardening, H. H. Thomas {London and New York: Cas- 

 sell d Co.. Ltd., 1920, pp. XII +276, pis. 49, figs. 40).— A practical elementary 

 work taking up especially thos^ details about which the amateur generally 

 seeks advice. It discusses hardy fruits, flowers, trees, and shrubs ; greenhouse 

 flowers, fruits, and vegetables ; and diseases, pests, and fertilizers ; and gives 

 much other general information on gardening, including a monthly working 

 calendar. 



r Report on horticultural work at the North Central Minnesota Substa- 

 tion, 1915-1919], O. I. Beegh {Minnesota Sta., Rpt. Grand Rapids Substa., 

 1915-1919, pp. 51-56, fig. 1). — Summarized data are given on variety tests of 

 orchard and small fruits and vegetables conducted for several years at the 

 Grand Rapids Substation. 



Of the orchard fruits, the losses from winterkilling were very great among 

 apples. Only 25 per cent of the trees planted in 1916 were living as compared 

 with 47 per cent for crab apples and 60 per cent for plums. Charlamoff, 

 Hibernal, Jewell Winter, and several University seedlings are relatively hardy 

 apples. The hardiest varieties of the plums are Surprise, Kahinta, Egama, 

 Topa, Terry, Toka, Wyant, and Yuttecca. The Compass cherry seems to be as 

 hardy as the plums. 



Report of the horticulturist, A. G. Turney {Ann. Rpt. Dept. Agr., New 

 Brunswick, 1919, pp. 54-76).— A report on the condition of fruit crops and mar- 

 kets in New Brunswick in 1919, together with notes on illustration and demon- 

 stration orchards, data on cooperative orchard-spraying experiments, and rec- 

 ommendations for potato spraying in 1920. 



Report of the horticulturist, P, J. Shaw {Ann. Rpt. Sec. Agr. Nova Scotia, 

 1919, pt. 5, pp. 67-78, pi. 1, figs. 2). — A report on different lines of horticultural 

 work conducted in Nova Scotia during 1919, including some data on a fer- 

 tilizer test with apples and notes on various model orchards and orchard 

 demonstration work. 



In the fertilizer test with apples, a complete fertilizer was more effective than 

 individual elements. Barnyard manure appeared to produce as good results as 

 the complete fertilizer, if the size and condition of the tree at the beginning of 

 the test are taken into account. 



[Report on horticultural investigations in 1919], J. Allan {Ann. Rpt. 

 Sec. Agr. Nova Scotia, 1919. pt. 6, pp. 87-95). — A report on horticultural investi- 

 gations conducted at the Nova Scotia Agricultural College during 1919. 



Tabular data are given on a fertilizer investigation with strawberries started 

 on two half-acre plats in 1917. The results in general indicate that a good sup- 

 ply of humus is essential for this crop, and where the land is lacking in humus 

 It must be applied in some form. Where the soil is fairly well supplied with 

 humus, a good mixed fertilizer is preferable to manure on account of the trou- 

 blesome weeds that arise from the use of manure applied directly to the straw- 

 berry land prior to planting. Some data are also given on a variety te.st of 

 tomatoes. 



