
New Yorx AgricutturaL Exprermment Station. 699 
second and September twenty-first. By referring to this table it 
_ will be seen that the sprayed portion contained nearly 1,000 more 
merchantable tubers per acre than the untreated portion with 
_ practically the same number of small tubers. This is at variance 
~ with the results obtained here last year and at other Stations in 
humerous tests, in which cases the larger yield was obtained 
by the increased size of tubers and not by the larger number of 
merchantable tubers. ‘These results, however, do not affect the 
commercial aspect as an increase of forty bushels as shown by 
Table No. 2 well pays for the outlay of from five to eight dollars. 
The United States Department claim to have had has as good 
results with Bordeaux mixture used at half strength as with 
full strength, but the results obtained at this Station favor the 
use of the full strength mixture for the last two sprayings. 
: 
Table I.— Showing cost of spraying per acre. 



















Oh Gy Sa « 
| af | 33 | 8 | 
: Aaa | SS. lo ER hs 
aa eo ans a 
77) o A ie i ° a, & 
: , pHa | #8 | 2 1 °8 
eee) 3 r= = | 
z ea] 4&2 cs 
S ci MN ds Ba 
First spraying with Paris green ............seeeseeereeceecneceenees $0 7 $0 08 88 * 
mecond Sorayimeg with Paris Zreen..w... cece ss veccscescccdoerocsceves 72 08 88 * 
Third spraying with Bordeaux, full strength .........cceeeeeen rene 1 54 16 88 ass 
Fourth spraying with Bordeaux, full strength............ceeesuees 1 54 16 88 75. 
| Je ae eS 
PROLAMUCOME Sth ers, «/aiaia els sala’ forstarstwilcle sip Apia kie'SMi aisieisiGe Sip's Wiand Apts $6 50 
Table II. 
A ia | a ; ne 
& Xs a mn 
ee, | 232 | 3E | Ee 
~ = 
2a5 | o3% | 28 | a5 
(3) fam 0) 3) wm = ‘On s) 
as | Fos | 26 | Pe 
5 Ap a n 
re ee OR ERAS 
Ree prayed, Ve LOWS. .... 0.0.0. 6..0sscesessacsccdevdessedcens 3,725 | 1,466 | 1,880] 238 
'. Estimated yield of tubers per acre............. cs cece ceeeee 14.900) bose id ee T BQO inte acm s 
Estimated yield of pounds per acre ........ cscs cececenecvee| sovevers By SOO oli ve tele ate 940 
Estimated yield of bushels per acre.........ccccseceeesevne| sovevens 19634 |...... 1534. 
AMET OMLOUEDCCIU LOWS 6 o.c.50 bs pieces scien scdels dan deisieeacise ce 9,745 | 3,225 5,227 6081. 
Estimated yield of tubers per acre..........eccecceeeseeees AS O20) hare sees BAO ieee 
_ _ Estimated yield of ees DOT ACLE Mae ne crepe Hecate die n atanis pteveras lie sueteroeeleie 42700.) rnttels 960 
1 Estimated yield of bushels per acre............ cece eee eees| ceeevees 15634 | ...... 16 
: Ia UV PMLA) c's vo nay Suan Vuln ap Oe vlc neveled bated |) nmalee as’ 1068's Sans Pe arene 
fs Untreated ET at Gy AI AG IN Ek REA NEPEAN PANO HEE RE 16096 [SiSsceh eae 
Txe Increase by spraying ............ceeceeeeee PER eae aE Ae Aiea 40 bul ocean 
is 
re * The labor to be charged against spraying with Paris green. 

