New YorK AGRICULTURAL EXPERIMENT STATION. 153 
Simply as an opinion, we will say that by spraying twice a 
week we believe that young, rapid-growing shoots can be pro- 
tected. That the apparent inability to get the mixture to adhere 
to them is due to the rapid growth of the plants, a factor which 
can be remedied by more frequent applications. 
Spraying alone cannot be expected to be profitable on fielids 
already reduced to one-third their original yielding capacity, nor 
can it be expected to revive such fields. 
Basing a recommendation upon the results obtained combined 
with observation and experience in spraying of asparagus, we 
believe that it will pay all growers who have fields yielding 800 
bunches and over per acre, tospray. In addition we would recom- 
mend the planting of corn on all sides of the asparagus field as a 
windbreak. Proper cultivation, fertilization and green manuring 
or supplying humus in some other form, follow as common-sense 
measures. 
Where growers have a number of acres to spray we would 
recommend the construction of a power sprayer similar to the 
one described in Part II. 
Il. THE DOWNS POWER ASPARAGUS SPRAYER.* 
INTRODUCTION. 
In the chapter on asparagus rust it has been shown that spray- 
ing asparagus is not an easy task. As has been stated, one of 
the reasons set forth as a factor against spraying asparagus, is 
the lack of suitable machinery for doing the work. It was also 
found to be a-difficult matter for workmen to do the spraying by 
hand with the thoroughness necessary to make it of much value, 
In fact lack of thoroughness means complete loss of time and 
materials, for after the rust gains a foothold within the plant, 
spraying is of little value. Lack of thoroughness does not neces- 
* As it is impossible for the writer ever to repay Mr. Arthur L. Downs, 
not only for hearing part-of the expense, such as furnishing wheels, tank 
and truck, for the power sprayer, but for aid furnished in designing and 
putting into working order the above named machine, it is proposed that 
this be known as the Downs Power Asparagus Sprayer. 
