390 Report op the Mycologist op the 



beetles feed to some extent from the under sides of the leaves 

 where it is difiScult to reach them with Bordeaux mixture. But 

 all leaves which do not receive the Bordeaux mixture will be 

 attacked by flea-beetles and also by fungi. In spraying, then, 

 care must be taken that each and every leaf receives a little of the 

 Bordeaux mixture. With a knapsack sprayer this is easily 

 accomplished. There is no danger of getting on too much — the 

 more the better. Where the spraying is done with stationary 

 nozzles it is more difficult to reach all of. the leaves. Experience 

 has shown that one nozzle per row (no matter of what kind the 

 nozzle may be) is insufficient. Two good nozzles per row will 

 cover the foliage fairly well. 



While it is impossible to state with accuracy what degree of 

 protection against flea-beetles will be afforded by Bordeaux mix- 

 ture and Paris green applied every two weeks by means of two 

 stationary nozzles per row, observation leads us to estimate it at 

 from 25 to 50 per cent ; that is, plants sprayed in this way would 

 be injured by flea-beetles from one-half to three-fourths as much 

 as plants not sprayed. In view of the results of the experiment 

 reported on page 397 of this Keport, we are of the opinion that 

 it will pay to use three nozzles per row in the last two sprayings. 



SECOND SPRAYING EXPERIMENT AT EAST WILLISTON. 



The following spraying experiment was made in the season of 

 1896 on a farm managed by C. Burkard and located near East 

 Williston, N. Y. 



Objects of the experiment. — The experiment was designed to 

 furnish information on several points of interest in regard to the 

 spraying of potatoes. 



During the past two years the Station has received numerous 

 inquiries concerning the value of the so-called dry Bordeaux mix- 

 ture patented under the name '' Fuugiroid." This is manufac- 

 tured and sold by Leggett & Brother, 301 Pearl Street, New York. 

 It is claimed to be a remedy for potato blight and some other 

 fungous diseases and is to be applied in dry form with a powder- 

 gun sold by the same firm. The powder-gun is much used by 

 Long Island farmers for applying Paris green to potatoes and the 



