306 AGRICULTURE Of MAINE. 



ordinary conditions this is strong enough to kill the spores with- 

 out the risk of injuring the leaves or fruit. That means three 

 pounds copper sulphate, three pounds lime, and fifty gallons of 

 water. If there is any injury apparent after spraying, such as 

 the turning dark of the edges of the leaves, especially at the tips, 

 and a russeting of the fruit, carefully investigate the process of 

 making the mixture and see that every precaution is taken. 



The lime should be thoroughly slaked and the copper sulphate 

 thoroughly dissolved and strained before combining the two. 

 Then add enough water to make fifty gallons. An excess of 

 lime is not detrimental. 



From a series of experiments tried at the N. Y. Experiment 

 Station on the effect of the different per cents of copper sulphate 

 in Bordeaux mixture, to prevent the injury to the fruit due to 

 that fungicide, it was suggested that the formula should be the 

 3-3-50 one as showing the least cause for injury. 



INSECTICIDE. 



As an insecticide add one-fourth pound of Paris green to the 

 fifty gallon solution of Bordeaux mixture. 



ACKNOWLEDGMENTS. 



We are greatly indebted to Dr. L. O. Howard, Washington, 

 D. C, C. W. Johnson, Boston N. H. Society, Dr. J. B. Smith, 

 Brunswick, N. J., W. D. Kearfott, Montclair, N. J., and Fred- 

 erick Blanchard, Tyngsboro, Mass., for identification of speci- 

 mens; to D. M. Rogers, National Field Agent, Prof. A. H. 

 Kirkland, Supt. of Mass. Commission ; to the Press of the State ; 

 to the officers of the State and County Fairs ; the State Board of 

 Trade; the State Grange; the State Pomological Society; and 

 to the many friends who have extended courtesies in rendering 

 assistance in advancing the efficiency of the work in the State. 



E. F. HITCHINGS, 



State Entomologist. 



