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JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 16 
Exp. 2. Sprayed May Qth & May nth with “Sun Miscible Oil” (1-20) and “Black 
Leaf 40” (1-500). 
Exp. 3. Sprayed May Qth with “Sun Miscible Oil” (1-20) and “Black Leaf 40” 
(1-500), and on May 12 th with “Black Leaf 40” only, (1-500). 
Exp. 4. Sprayed May Qth & May 12th with “Sun Miscible Oil” (1-20) and “Black 
Leaf 40” (1-500) and again on May 20 th, with the same, following a heavy two-day 
rain on May 17th and 18th. 
Exp. 5. Sprayed three times as in Exp. 4. The preceding experiments were con¬ 
fined to sections of the hedge, the latter to a heavily infested isolated bush, much 
taller and with more open foliage than in the case of the hedge. 
Resin Fish Oil Soap, Molasses and Gas Treatments 
A. Sprayed with resin fish oil soap (10 lbs. to 50 gallons) and “Nikoteen” (one- 
pint to 50 gallons of soap solution) on May Qth & loth. 
B. Sprayed with molasses (1-3) and “Black Leaf 40” (1-2G4) on May nth.. 
No adults emerged on this bush until May 10th. 
C. One application as in B., and two succeeding ones following rains on May 17th 
& 18th which washed off those preceding. 
D. Fumigated by commercial firm with hydrocyanic gas May 6th & jth, three 
hours exposure each time. Dosage not known. Many miners still in larval stage. 
E. Fumigated as in D once only, on May ioth. Three hours exposure. Dosage 
not known. Most of miners in the pupal stage. 
The following tabulation shows the counts made to determine the 
relative number of adults successfully emerged, adults trapped in the 
spray, and those killed by contact before emergence was complete. 
No counts were taken from parts of bushes from which counts had pre¬ 
viously been taken. 
Table I. 
Exp. No. Counted Successfully emerged Trapped Killed by contact 
Oil Applications 
1 
May 10 
120 
150 
166 
1 
May 11 
391 
392 
120 
1 
Alay 12 
315 
152 
30 
2 
May 12 
527 
486 
163 
3 
4 & 5 
Alay 13 
No counts 
55 
40 
37 
Other Treatments 
A 
Alay 10 
27 
7 
112 
A 
May 11 
230 
16 
274 
A 
May 12 
222 
4 
39 
B 
C 
May 13 
No counts 
45 
40 
140 
D 
May 11 
0 
565 dead; 77 alive 
Checks, all 
E 
May 11 
0 
1029 dead; 2 alive 
emerged 
The oil sprays (Experiments 2- 
-3) accounted for a high percentage of 
trapped adults, and the efficiency of the nicotine is shown by the large 
number which were unable to emerge successfully and were killed by 
contact. The resin fish oil soap spray (Treatment A) possessed very 
little merit in entangling the adults, but the addition of nicotine sulphate 
