20 PARIS GREEN SPRAYING EXPERIMENTS. 



Urban iste. These trees were all in a single row and every other one 

 was sprayed with the samples containing no lime, the alternates being 

 sprayed with th,e admixture of lime. After the rain of June 7 to 10 

 the Pitmaston Duchess, sprayed without the addition of lime, had a 

 few burned leaves, and the Kieffer and Hardy, similarly treated, 

 showed slight traces of burning. The trees receiving the spraying 

 mixture mixed with lime showed no trace of burning whatever. 



PEACHES. 



The peaches sprayed stood in two rows, side by side, one row receiv- 

 ing the Paris Green alone and the corresponding trees in the other row 

 receiving the same green with the addition of lime. Those receiving 

 the samples with lime were three of the Crawford Late variety and 

 three Fitzgeralds. Three Champions and three of the Hill Chili vari- 

 ety were sprayed with the samples without lime. None of the trees 

 showed any effects of the spraying until after the rain of May 30. The 

 results in every case were proportionate to the amount of soluble 

 arsenious oxid used. Those receiving the lime were far less affected 

 than those not receiving it; in fact, the former showed hardly any 

 effects until after the heavy rains of June 7 to 10. The tree which was 

 sprayed with sample No. 6 (8 per cent of arsenious oxid), without lime, 

 lost nearly all of its leaves and did not recover during the season. A 

 number of the branches died and it made practically no growth after 

 the application of the green. The tree sprayed with the same sample 

 with lime was affected about the same as the tree sprayed with sample 

 No. 1 (2.84 per cent of arsenious oxid) without lime. As before stated, 

 the other trees were affected proportionately to the amount of soluble 

 arsenious oxid in the sample with which the} r were sprayed. 



It appears that sample No. 3 (5 per cent of arsenious oxid) repre- 

 sents the maximum limit when lime is added, since Nos. 4, 5, and 6 (6, 

 7, and 8 per cent of arsenious oxid) caused considerable damage. All 

 of the greens did too much injury to the peach trees when used with- 

 out lime. In no case did the trees sprayed seem to lose their leaves 

 any earlier than those not sprayed. 



The illustrations accompanying this report show the injury to peach 

 trees inflicted by several of the greens, and with their legends explain 

 themselves. 



REPORT FROM THE SOUTH CAROLINA STATION, CLEMSON 



COLLEGE. 



By C. E. CHAMBLISS. 



The solutions were made up and applied in strict conformity to the 

 accompanying directions. The table following shows the condition of 

 the weather during the time of the experiment. 



