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STATE HORTICULTURAL SOCIETY. 



GENERAL TREATMENT FOR GRAPES. 



When to Spray. 



When the shoots are 

 about 8 to 10 inches 

 long. 



Just before blooming. 



Just as the blossoms 

 fall. 



About 10 days or 2 

 weeks later. 



What to Use and What For. 

 Bordeaux mixture for black-rot. 



Bordeaux mixture for black-rot, with poison for 

 the grape-berry moth and rose-chafer. 



Same as before. 



Bordeaux mixture and poison for black-rot and 

 berry-moth. The need for this spraying depends upon 

 the weather conditions and the amount of rot preva- 

 lent in the vineyard. If it is thought advisable to 

 make later sprayings, some material should be used 

 that will not stain the fruit. 



In vineyards where flea-beetles appear, bordeaux 

 and a strong arsenical poison just before the buds 

 burst. 



In vineyards where the grape-berry moth is seri- 

 ous, spray with bordeaux and an arsenical poison 

 during the middle of July, before the 20th. 



For leaf-hoppers (sometimes, but incorrectly, called 

 "thrip") tobacco-water or kerosene-emulsion while 

 the insects are young. (Burning rubbish late in the 

 fall will destroy many hibernating leaf -hoppers.) 



GENERAL TREATMENT FOR CURRANTS AND GOOSEBERRIES. 



When to Bpray. 

 Before growth starts. 



Just as the leaves are 

 expanding, if worms ap- 

 pear. 



WhxLt to Use and What For. 



Lime-sulphur wash for San Jose scale or European 

 fruit scale, if present. Cut out and burn wilted and 

 hollow canes containing borers. 



Bordeaux mixture and poison, 14 pound of Paris 

 green or 2 pounds of arsenate of lead, to 50 gal- 

 lons. Repeat if worms reappear before fruit is i/4 

 grown, if later, then use pyrethrum or hellebore. 



If leaf-bugs or aphids appear, spray with tobacco- 

 water or kerosene-emulsion while the bugs are red 

 and wingless, and before leaves become curled. 



Gooseberry-mildew. Wliere this disease is known 

 to be serious, begin from the time the buds start and 

 spray with potassium-sulphide, 1 oz. to 2 gallons of 

 water, and repeat about every 10 days. 



