PROGRESS REGARDING SUGAR-BEET WEBWOEM. 
67 
and may cause some trouble by catching in fences, etc., when turn- 
ing at the end of the field. Number 2 (fig. 18) is so arranged that 
two nozzles are above each row of beets. This is desirable, but not 
a-i" 
1 
l"~TTT K 
3 1— 1 TT 1 — 1 f-\ 
x> 
r -T 
— Pa" 
} 
go" 
T 
Fig. 17. — Four-row attachment for beet sprayer. (Original.) 
absolutely necessary, when large beets are to be sprayed. Number 3 
(fig. 19) is so made that both the surface and the underside of the 
beet leaves are reached by the spray. By using this attachment 
SO 
o= 
A 
□5* 
4 
£J«B 
>v 
so- 
20 
Fig. 18. — Four-row attachment for beet sprayer. (Original.) 
beets can be very thoroughly sprayed and young webworms on the 
underside of the leaves will be more quickly killed than when only 
the surface of the foliage is wet by the spray. A nozzle arrange- 
80' 
?=t ^r == ^ 
Fig. 19. — Four-row attachment for beet sprayer : Nozzles arranged so that both the upper 
and lower sides of the leaves may be wet by the spray. (Original, i 
ment such as is obtained with this type is necessary when Bordeaux 
mixture is applied for the leaf -spot disease (Cercospora heticola 
Sacc). 
