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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



is under fruit cultivation ; and that being the case the subject of fruit- 

 spraying must interest the county of Kent as much as or more than 

 any other county. But although it has been the practice in Kent for 

 so long to deal with hop- washing and fruit- spraying, from all I can 

 gather I fear the subject is still in its infancy, and one concerning 

 which we have a great deal to learn, and therefore everyone here must 

 be looking forward with great interest to the papers we have been 

 promised. 



I will therefore at once call upon Mr. Massee to read his paper. 



" Spraying for Fungus Pests." 



Mr. George Massee : In the first place I should like to emphasize 

 one point, which is that my remarks apply entirely to spraying for fungi 



1 2 



Fig. 63. — Showing amount of surface covered by Spraying with 

 (1) a coarse spray, (2) a finer spray. 



and not for insects. From what can be gathered it appears there is a far 

 greater amount of success attending spraying for insects than spraying 

 for fungi. Possibly most people expect too much from spraying. There 

 is, for instance, an idea that when a plant is sprayed it is perfectly covered 

 all over, that is, if it is well done. This is a serious mistake. The 

 illustrations from photographs of sprayed leaves (fig. 63) show that only a 

 portion of the surface of the leaf is covered. This in the case of many 

 insect pests is -practically immaterial. The caterpillar moves along and 

 brings itself into contact with something that causes death ; but if the 

 particular part of the leaf on which. the fungus is growing is not covered, 



