FORTY-FIRST ANNUAL REPORT. 167 



GENERAL TREATMENT FOR CHERRIES. 



Cherry trees may be infested with San Jose scale. If found, the 

 treatment is the same as that recommended for the apple. 



Just Before the Blossoms Open^ spray with dilute lime-sulphnr, 

 self-boiled lime-sulphur or bordeaux mixture. This is to prevent the 

 rot and leaf spot troubles. Especially valuable on the English Morellos 

 for the latter. Our experiments last season indicate that the dilute 

 lime-sulphur is just as satisfactory as the bordeaux or self-boiled lime- 

 sulphur for cherries. 



Just After the Blossoms Fall, make a spraying like the above with 

 the addition of 2 pounds of arsenate of lead to every 50 gallons of spray 

 solution. This spraying is directed against the rot and leaf spot, curculio 

 and slug. 



Tex Days or Two Weeks Later, it may be necessary to make an- 

 other spraying like the previous one for the rot and leaf spot. The need 

 for this spraying will depend upon the susceptibility of the variety to the 

 rot and the weather conditions of the season. 



Large Black Lice may appear on the leaves at any time. A spray- 

 ing of tobacco water (see page 16) will destroy them if applied before 

 the leaves curl too tightly. 



Slugs sometimes appear after the fruit is harvested, a spraying of 

 arsenate of lead (2 or 3 pounds in 50 gallons of water) will destroy 

 them. 



GENERAL TREATMENT FOR GRAPES. 



Grape vines are not often subject to attacks by scale insects so there 

 is seldom need for a spraying with strong lime-sulphur before growth 

 starts. 



Do not use the dilute lime-sulphur at any time for grape spraying. 

 It stunts or checks the growth of the berries. Use the bordeaux mix- 

 ture. 



Grape black-rot has become a serious disease in the grape growing 

 regions of Michigan. Last year, it was not as serious as during several 

 years before. But growers who left a row unsprayed last year, found 

 enough rotten fruit to convince them that the spraying was necessary 

 and more than paid all the expenses connected with the work. 



When the Shoots Are About 8 to 10 Inches Long, spray with bord- 

 eaux mixture for black rot. 



Just Before Blooming^ spray again with bordeaux mixture for black 

 rot and to every 50 gallons of the bordeaux, add 2 or 3 pounds of arse- 

 nate of lead to poison the grape berry moth and the rose-chafer. If this 

 latter is serious use stronger poison even up to 5 lbs. to 50 gallons. A 

 pint of the cheapest molasses added may help. 



Just As the Blossoms Are Falling^ make another spraying like the 

 above. 



About 10 Days or Two Weeks Later, it may be necessary to make 

 another spraying like the two previous, but this will depend upon the 

 weather conditions and the amount of rot prevalent. If later sprayings 

 are thought to be necessary, some material should be used that will 



