936 EXPERIMENT STATION EECORD. 



grain, while in others it caused a reduction. This treatment also seemed to 

 favor the development of the stems and leaves, and thus showed a tendency to 

 increase the yield of straw. 



A method of eradicating Johnson grass, J. S. Gates and W. J. Spillman 

 (Z7. ;S'. Dcpi. Afir.. I'anncm' Bui. 279, pp. 16, figs. 8). — The results of investi- 

 gations on the eradication of Johnson grass are reported and discussed. 



It appears that the best method is to turn the land into meadow or pasture, 

 keeping the grass closely cropped, either by grazing or mowing, for 1 or more 

 seasons. The grass should never be allowed to stand after blossoming. After 

 the sod has remained undisturbed for a year shallow plowing, with subsequent 

 cultivation, is recommended. Running an ordinary turning plow from 3 to 4 in. 

 deep will generally tiuni up all the root stocks, and if the land is then planted 

 to a cultivated crop and given good cultivation the Johnson grass may be eradi- 

 cated. Any shoots missed by the cultivator should be removed by hand before 

 heading out. 



HORTICULTURE. 



Report of the field horticulturist for 1906, (). I>. Whipple {Colorado Sta. 

 Bui. 118, pp. 16). — A report of the field work for 19UG. 



Special attention has been paid to the treatment of fruit and oi'chard dis- 

 eases and a study of orchard conditions in Mesa County, Colorado. The bulletin 

 contains notes on the various diseases under observation and their treatment, 

 as well as on copper-sulphate injury to fruit trees, the thinning of apples, grape 

 groAving, setting out young trees, and general orchard conditions. 



Horticultural report, R. S. Northrop and J. T. Atkin (Utah Sta. Bui. 97, 

 pp. 9-ciJi, pgs. 8). — The southern Utah experiment farm, which was established 

 in 1899, was organized as the Southern Utah p]xperiment Station early in 1905, 

 and variety tests of grapes, orchard fruits, and nuts under way at that time 

 have been continued. Experiments are also being conducted in grape pruning, 

 training, and resistance of vines to phylloxera. 



The soil at the station varies, the eastern half consisting of sandy loam, 

 which grades to a heavy clay loam in the extreme western portion. This latter 

 type of soil is said to contain more or less alkali, and some attention has been 

 given to the selection of varieties of grapes for this kind of land. It has been 

 found that while all of the grapes svicceed better on the higher and lighter soils, 

 the Cornichon, Purple Damascus, Golden Champion, and Thompson Seedless are 

 the best yet tried on the heavy land. These varieties, together with Rlack Fer- 

 rara and Muscat of Alexandria, are also considered the most promising on the 

 lighter laud. 



A list is given of the varieties planted in the spring of 1902 on the lower soil, 

 with notes on those which have fruited, together with the names of the varie- 

 .ties which have been recently planted at the station, and illustrations of several 

 varieties resistant to phylloxera. 



While the study of the various phases of grape culture forms the chief sub- 

 ject of the station work, tests are being made of a large number of orchard 

 fruits and nuts, of which a complete list is given, with notes on varieties which 

 have fruited. Vegetable testing, the use of cover crops, and the evaporation of 

 fruits are some of the jtroblcnis to be taken up. 



Beport of the horticulturist, R. S. Northrop (Utah ^Sta. Bui. 98, pp. 

 32-Jfl). — Thus far the horticultural work at the station appears to be of a pre- 

 paratory nature. Some of the problems to be taken up include an experiment 

 to be conducted for a number of years with reference to the duty of water as 

 applied to orchard and small fruits, and the study of commercial varieties of 

 apples. 



