25 

 REPORT OF GEO. R. ANDREWS, 



FITCHBURG, MASS. 



Mr. Andrews treated apple, pear and plum trees and grape vines, 

 upon which he reports as follows : 



'■'• April 29th, sprayed 50 plum trees with the Bordeaux mixture, 

 the blossom buds being almost open at this time. Continued spray- 

 ing until May 7th, treating 4000 grape vines, 100 apple, 100 pear and 

 the above mentioned 50 plum trees. 



The leaves of the apple trees were beginning to unfold, some of 

 them being an inch long, and the bud moth abundant, so in treating 

 these I used ^ lb. of Paris green to 100 gallons of the mixture. 



May 19th, si)rayed plum trees with the Bordeaux mixture and 

 Paris green at the rate of ^ lb. to 100 gallons. 



May 20th. sprayed pear trees, and May 27th, the apple trees with 

 the same mixture. 



June 9th, sprayed plum and p.ear trees and June 13th the apple 

 trees with the Bordeaux mixture at one-half strength. 



June 17th, sprayed grapes with the ammoniacal carbonate of 

 copper, and again treated them with same the 25th. The Concords 

 and VVordens showed some black rot and mildew. 



July 8th, sprayed the Delaware vines with the Bordeaux mixture ; 

 and the Concords with the ammoniacal carbonate of copper, the 11th 

 and 12th. At this time the former showed some of the powdery 

 mildew on the foliage, and the two latter varieties increasing black rot. 



July 11th and 12th, sprayed the plum trees with the ammoniacal 

 carbonate of copper, for fungous growths, and the pear trees with the 

 kerosene emulsion for the pear tree Psylla." 



The results of these experiments, while not satisfactory iu all 

 particulars, in the case of the Delaware vines was very marked and 

 also with the plum trees. The photographic view, Plate 6, shows 

 three rows of Delawaie vines. Those on the right and left of the 

 picture were sprayed, while the midiUe one was not. The foliage of 

 the two outside rows, and all the rows of this vineyard, except the 

 middle one here represented, retained perfectly healthy foliage, and 

 ripened a very fine crop of fruit perfectly, while the unsprayed row 

 lost nearly all of its foliage and the fruit failed to ripen at all. 



A laige proportion of the ciop of Wordens and Concords in one 

 part of the vineyard was destroyed by the black rot. I visited the 

 vinevard twice during the summer, and have never before seen this 



