24 BULLETIN 1032, U. S. DEPARTMENT OF AGRICULTURE. 
Table 3. — Outline of miscellaneous spraying experiments, etc. — Continued. 
Number of gallons used calculated per 
acre per application. 
Total 
Total 
Spray materials, dosage, 
number 
of b er- 
number 
of ber- 
Gain 
Plat 
No. 
etc. 
Aver- 
nes 
ries free 
check. 
Mavl3 
June 12. 
July 1 
July 16 
age per 
exam- 
from 
and 14. 
and 2. 
and 17. 
appli- 
ined. 
injury. 
cation. 
V..... 
40 per cent nicotine sul- 
phate, 1-600 + fish-oil 
Per cent. 
Per cent. 
soap, 2-50 
295 
270 
270 
278 
820 
91.21 
14.19 
VI.... 
40 per cent nicotine sul- 
phate, 1-600 + fish-oil 
soap, 2-50 
295 
270 
270 
500 
333 
485 
94.22 
17.20 
VII... 
Powdered arsenate of lead, 
2*-50+ fish-oi 1 soap , 2-50. 
340 
• 300 
260 
300 
401 
83.04 
6.02 
VIII.. 
Powdered arsenate of lead , 
2i-50+fish-oilsoap, 2-50. 
340 
300 
260 
450 
337 
172 
76.16 
.96 
IX.... 
Nicotine oleate, 1-300 
295 
270 
270 
278 
433 
91.45 
14.43 
X 
Nicotine oleate, 1-300 
295 
270 
270 
320 
289 
862 
91.99 
14.97 
XI.... 
40 per cent nicotine sul- 
phate, 1-800+ glue, 1-200. 
290 
280 
310 
293 
703 
83.64 
6.62 
XII... 
40 per cent nicotine sul- 
phate, 1-800+glue, 1-200. 
290 
280 
310 
620 
375 
600 
86.16 
9.14 
XIII. . 
Nicotine oleate, 1-400 
300 
320 
350 
323 
1,012 
92.29 
15.27 
XIV.. 
Nicotine oleate, 1-400 
300 
320 
350 
660 
407 
1,061 
91.42 
14.40 
XV... 
Nicotine oleate, 1-500 
330 
380 
320 
343 
793 
87.64 
10.62 
XVI.. 
Nicotine oleate, 1-500 .' 
330 
380 
320 
600 
407 
827 
92.38 
15.36 
XVII. 
" Phenol compound " No. 
1,1-500 
420 
560 
320 
560 
460 
628 
74 
73.56 
77.02 
3.46 
XVIII 
Note.— Mist nozzles as shown in figure 13 used for all applications, with hand barrel spray pump giving 
pressure of 50 to 100 poimds. 
Nicotine Sulphate. 
The conclusions drawn by Scammell " regarding the effectiveness 
and safety of 40 per cent nicotine sulphate in the control of the 
blackhead fireworm were borne out in the work on the Pacific coast. 
Of the various strengths used, 1 part to 800 parts of water with 2 
pounds of fish-oil soap to each 50 gallons of solution, applied 4 times, 
seemed to give the highest percentage of cranberries free from fire- 
worm injury; it will be noted in Table 3, however, that 4 applica- 
tions of this material, used 1 to 1,000, gave nearly as great a gain 
over the check. The fact that it gave a higher percentage of clean 
fruit than 1 to 600 was probably due to the fact that there was a 
larger setting of fruit on this plat and perhaps a somewhat lighter 
infestation than on the one treated with the solution of the strength 
of 1 to 600. 
Nicotine Oleate. 
Nicotine oleate was made by stirring together the proportions of 
a 40 per cent solution of free nicotine and oleic acid according to 
the directions given by Moore 12 as follows : 
11 Scammell, H. B. A New Method of Controlling the Blackhead Fireworm. In Proc. 
47th Ann. Conv. Amer. Cranberry Growers' Assn. (Aug. 26, 191G), p. 8-12; Cranberry 
Insect Problems and Suggestions for Solving Them, 17. S. Dept. Agr., Farmers' Bui. 800, 
p. 4-9, 1917. 
12 Moore, William. A Promising New Contact Insecticide. In Journ. Econ. Ent., v. 11, 
no. 3, p. 341-342, 1918. 
