1010] EORTICULTXTBE. 341 



thorough cultivation tlian from gnr Ing trees in sod, or In alfalfa plats where 



the alfalfa is allowed to grow within 3.5 ft. of the trees. 



A comparative study was made of the effects of summer pruning, winter 

 pruning, and lack of pruning, summer pruning producing the most finely de- 

 veloped aud well-balanced tops. The summer-pruned trees were also less 

 affected by the severe winds that followed several bard fall rains than the other 

 trees. The summer-pruned trees produced fruit spurs and a few blossoms on 

 the current season's growth, whereas none of the others produced any blossoms. 



Orchard fertilization experiments. — Method of rejuvenating trees on 

 wornout hilly soils, F. H. Ballou (Mo. Bui. Ohio Sta., 4 (1919), 2?o. 1. ui>. !> Id. 

 figs. 5). — A popidar summary of the results secured in the station's orchard 

 rejuvenation experiments in southeastern Ohio (E. S. R., 36, p. 40). 



Report on apple breeding work (Iowa Sta. Rpt. 1917, pp. 31, 32). — A brief 

 statement of results secured in apple breeding work at the station. 



A number of promising varieties of apples have been secured, one of which, 

 resulting from a cross of Hibernal and Delicious, has a much better keeping 

 quality than Delicious although not as high a quality early in the season. Sev- 

 eral promising seedlings have been produced from a cross of Salome and Jo- 

 nathan. The keeping quality, attractive color, and high quality of these seed- 

 lings indicate that they will be of considerable value in the future apple planta- 

 tions of the northern portions of the United States. High quality fruit has also 

 been produced from a selected lot of Vermont seedling apple stocks. 



The plantation of C. G. Patten of Charles City, Iowa, where several thousand 

 seedlings of apples, pears, and other kinds of fruits representing 40 years of 

 effort by Mr. Patten are located, has been purchased and added to the station 

 material. 



Varieties of apples for the home orchard, F. W. Faukot (Missouri Fruit 

 sla. Cirr. 12 (1918), pp. 8). — A descriptive list of apples, including also lists 

 of crab apples and pears adapted for planting in Missouri. 



Effect of various dressings on pruning wounds of apple trees, D. II. Rose 

 (Missouri Fruit Sta. Giro. 10 (1917), pp. 4)- — -A. preliminary report on a prun- 

 ing experiment begun in January, 191G, to determine the best time to prune and 

 also to test the value of various paints and pruning compounds as dressings for 

 wounds. 



The results thus far secured indicate that winter is the poorest time to make 

 large pruning wounds in Missouri orchards, since the wounds heal slowly and 

 are very likely to become infected with cankers. The best time to do such 

 pruning is between March and June, preferably in May and June, when there is 

 less danger from canker infection and bark injury around the wound. Wounds 

 heal more quickly, show less bark injury, and are less in danger from canker 

 infection when covered with a soft grafting wax than when untreated or when 

 covered with any of the other wound dressings commonly in use. Untreated 

 wounds heal no better than those treated willi had and oil, and show a slightly 

 greater tendency to become infected with New York canker than do those treated 

 with lead and oil or grafting wax. 



Two years of success with dusting, J. II. CossETTE (Agr. Gaz. Canada. 6 

 (1919), No. 2, pp. 168, 169). — Dusting experiments conducted at the Oka Agri- 

 cultural Institute for two years indicate that the use of powdered sulphur and 

 lead arsenate on apple trees is efficient in preventing se ; ib and wormy apples, 

 but is of no value in checking canker. 



Peaches, plums, and cherries for the home orchard, F. W. Fathot (Mis- 

 souri Fruit Sta. Circ. /.? (1918), pp. 7). — A descriptive list of peaches, plums, 

 and cherries recommended for planting in Missouri. 



