33 



cations were made one on May 24, the other on July 18. The 

 effect of this treatment showed rather promptly in the darker green 

 color of the grass. It prevented, to a certain extent, the brown, 

 parched appearance of the lawn during the months of July and 

 August. 



At the time of the last spraying of the season (October 4) there 

 were a considerable number of dandelion plants scattered over the 

 sprayed area. These were nearly all killed by the spraying, tho a 

 few retained some green leaves and gradually recovered, going 

 into the winter with some foliage. 



As far as eradication of the dandelions is concerned, the results 

 with this plat were not as marked or as complete as with Plat 1 

 which was located on a somewhat more fertile soil. The writer 

 believes this to be due to the dry season, the vigorous condition 

 of the dandelion plants (most of them being old and quite large), 

 and the low fertility of the soil which did not give a quick growth to 

 the* grass, and cause it to come in where the dandelions were killed 

 out. 



THE EXPERIMENTS IN 1914. 



PLAT 1. 



At the beginning of this season (on May 7, two years after spray- 

 ing) a count of the dandelion plants showed only twenty-seven in 

 bloom (Plate III); while the adjoining lawns were golden yellow 

 with blossoms and later white with many fluffy gray seed heads, 

 which served as a great source of infestation for the sprayed area. 

 The result of this infestation was apparent in late summer when it 

 was noticed that a number of young seedling dandelion plants were 

 appearing in the sprayed area. On October 17, at practically the 

 close of the growing season, it was noted that the outlines of the 

 sprayed area were plainly discernible at a considerable distance 

 because of the small number of dandelions present. By the average 

 person this area would be classed as a " clean lawn." Section A, 

 treated with bonemeal during 1913, was still plainly outlined by 

 the slightly greener color of the grass. 



PLAT 2. 



Plat 2, which was sprayed six times during the previous growing 

 season, showed quite a number of dandelions in bloom (Plate IV). 



