PLUM. 



The plum trees in the station orchard have improved in healthful- 

 ness and vigor during the pa.st two or three years. The crop was 

 the best for several years and the black wart less abundant. 



The trees were treated in the same way as the peach, except that 

 more Paris green was used for the destruction of the plum curculio, 

 and the Bordeaux mixture was used at full strength. 



Very few warts appeared ; the few found were promptly destroyed 

 b}" painting with kerosene paste or by cutting out with the knife. 



TREATMENT RECOMMENDED FOR 1893. 



1. Spray with copper sulphate, formula a, before the flower buds 

 swell very much. 



2. Use Bordeaux mixture with Paris green 1 lb. to 100 gallons, 

 as soon as the petals fall. 



3. Spray again with same in one week or 10 days. 



4. Use Bordeaux mixture at intervals of from two to four weeks 

 according to the weather until the fruit is nearly grown. 



5. When the fruit begins to color, spray once or twice with the 

 ammoniacal carbonate of copper, either formula a or b. 



PEAR. 



The most destructive diseases attacking the pear are the leaf-blight 

 and the cracking of the fruit, which are caused by the same parasitic 

 fungous growth. It appears at any time from July 1st to Sept. 1st, 

 when the weather is very hot and moist, and if very abundant, causes 

 the leaves to fall, or, if it attacks the fruit, results in the cracking so 

 common to the Flemish Beauty and some other varieties. 



Both of these difficulties may be overcome by the use of the copper 

 solutions used as for the apple, except that no Paris green need be 

 used at the first spraying with the Bordeaux mixture. 



The treatment to be recommended for 1893 will be the same as 

 for the apple with the above exception. 



THE APPLE. 



Many trees in the station orchard were treated during the past sea- 

 son to prevent injury from the apple scab and the codling moth and 

 other insects. All the trees were sprayed with the copper sulphate, 

 formula a, before the leaves unfolded. As soon as the leaves and 



