- 5 8- 



Ramularia Tulasnei) has been bad in some sections and upon 

 some varieties. This disease is fully discussed by Professor Dud- 

 ley in Bulletin XIV of this Station. The most approved rem- 

 edy is potassium sulphide or sulphuret ("liver of sulphur") 

 sprayed upon the vines about once in a week or ten days, from 

 the beginning of the growing season until the fruit begins to ripen, 

 at the rate of about i oz. to 8 gallons. After the crop is gathered 

 the plants may be mown and burned off, or destroyed by spraying 

 with i pint of sulphuric acid to 6 gallons of water. New leaves 

 soon start up, and the plants are not injured. 



IV. GRAPES. 



The grape crop is fair to good, but rot and mildew are appear- 

 ing in many places. It has often been said that the climatic con- 

 ditions are such in the famous grape regions about the central 

 New York lakes that the grape diseases can not thrive, but this 

 notion is clearly erroneous. We also warn our readers not to put 

 faith in statements that certain varieties are exempt. Some of 

 the most serious cases of disease which we have seen this year 

 were noticed upon a variety which has been said to be free from 

 attack. 



The advent of the rots and mildews in the New York vineyards 



is aot a cause for alarm. They are to be expected, and the}' will 

 undoubtedly spread. But the means are at hand to keep them in 

 check easily and economically. Some of the vineyardists are now 

 using fungicides with good success. The authracnose appears to 

 be particularly injurious in attacking the wood, especially of nurs- 

 ery stock. This is the fungus which causes the scab of the berry. 

 Upon the wood it causes black, shallow pits. 



The mildews and rots can be kept in check by the timely and 

 persistent use of Bordeaux mixture. Begin before the flowers 

 open and spray every week or ten days until well into August. 



For anthracnose, sulphate of iron applied before the leaves ap- 

 pear, is probably the best reined}-. After treatment should be 

 made with Bordeaux mixture. 



In conclusion, we urge upon fruit growers the importance of 

 considering the advisability of endeavoring to secure a state law 

 looking towards the control of contagious plant diseases. New 

 Jersey has lately made such a law. Some officer should be em- 

 powered to look after these interests when occasion requires. 



L,. H. BAILEY. 



