FORTIETH ANNUAL REPORT. 



113 



Immediately after 

 the blossoms fall. 



Bordeaux mixture or self-boiled lime-sulphur mix- 

 ture for fruit-rot and leaf-spot with arsenate of lead 

 for curculio. (For the Japanese varieties, dilute the 

 bordeaux about one-half, or use self-boiled lime-sul- 

 phur mixture.) 



Ten days or two 

 weeks later. 



Repeating the previous sprayings will tend to 

 check the fruit-rot and curculio. This spraying 

 should be repeated every 10 days or 2 weeks until 

 there is danger of staining the fruit; stopping at 

 least a month before picking time. 



On varieties especially susceptible to rot, an appli- 

 cation of weak copper sulphate may be made about 

 2 weeks before ripening. No poison should be added. 

 One pound copper sulphate to 150-200 gallons of 

 water. 



Black knot. — At the annual pruning, cut out all 

 knots. 



A careful inspection should be made in the early 

 spring, and all knots cut out and burned. Cut back 

 several inches below the knot. 



Wild cherry trees harbor the trouble and if near 

 plum or cherry orchards, should be removed, if pos- 

 sible. 



GENERAL TREATMENT FOR CHERRIES. 



When to Spray. 



What to Use and What For. 



Early in the spring 

 before growth starts. 



Strong lime-sulphur wash, if San Jose scale is 

 present. The same as for apple trees. 



Just before the blos- 

 soms open. 



Bordeaux mixture or self-boiled lime-sulphur mix- 

 ture for fruit rot and leaf-spot. This is especially 

 valuable on English Morellos for leaf-spot. 



Just after the blos- 

 soms fall. 



Bordeaux mixture or self-boiled lime-sulphur mix- 

 ture for fruit-rot and leaf-spot, with arsenate of lead 

 for curculio and slug. 



Ten days to 2 weeks 

 later. 



Bordeaux mixture or self-boiled lime-sulphur mix- 

 ture for fruit-rot and leaf-spot. This spraying may 

 not be necessary, depending upon the susceptibility 

 of the variety to fruit-rot and the weather conditions 

 of the season. 



The large, black lice may be killed with tobacco 

 water, if it is applied before the leaves curl too 

 tightly. 



If slugs appear after picking, spray with arsenate 

 of lead. 



