1892.] PUBLIC DOCUMENT — No. 33. 243 



for them. It is not known to what extent many of those 

 who wrote for further information and advice practically 

 applied it ; but reports have been received from some which 

 speak for themselves. Such is that of Mr. J. N. Pardee of 

 South Billerica, who sprayed his apple trees only twice with 

 Bordeaux mixture, containing Paris green, once on the 1st 

 and once on the 13th of June. In each case the spraying 

 was followed, the next day, by a heavy shower. Thinking 

 the rains must have washed off the combined fungicide and 

 insecticide, and that it was too late for further treatment to 

 be effective, he did nothing more. Concerning results, he 

 writes: "The fruit from the sprayed trees and parts of 

 trees did not drop off as freely as from the unsprayed trees, 

 and is uniformly fair, with clean, smooth skin, and two- 

 thirds grade as choice No. 1, while the other third brings a 

 good price as seconds. It is fair, but wormy. The fruit 

 from the unsprayed trees and parts of trees is almost uni- 

 formly covered with black spots. The sound apples will not 

 grade as first-class No. 1, while the wormy apples go for 

 cider, and less than one-third of the fruit is sound. As all 

 other conditions, soil, care, etc., have remained the same, I 

 do not know what to attribute the difference to, except to 

 the spraying. The cost of the material for the two spray- 

 ings was about fifteen cents per tree, and the time taken to 

 spray thirty trees twice was about three hours for two men and 

 a horse." It is evident that the secret of the efficacy of this 

 slight treatment is to be found in the fact that it was applied 

 at just the right time in the development of the fruit, and 

 that the preparation was not washed off by the rains which 

 immediately followed its application. 



Mr. N. E. Baker of Lawrence has sprayed his carnations 

 with the improved form of ammoniacal carbonate of copper 

 both before and since putting them in the house, as a pro- 

 tection against the leaf-spot fungus (Septoria Dianthi 

 Desni.), and reports that the new growth is vigorous and 

 healthy. 



These examples serve to show what may fairly be expected 

 from the proper use of fungicides well applied, and it is 

 hoped that they may encourage many others to try them 

 next season. As a further stimulus in this direction it is 



