150 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 11 
matter. In addition to the work already reported, a test 1 was made of the ovicidal 
value of nicotine sulphate for the eggs of codling moth. 
On August 31, codling moth eggs deposited on apples were collected in the field. 
These eggs varied from those recently deposited to those just ready to hatch. The 
eggs were examined carefully in the laboratory under a binocular and the position of 
those appearing perfect in every way was indicated on the fruit by drawing a circle 
about the egg some little distance away with Higgins waterproof ink. The apples 
were then so cut as to leave the egg uppermost when the apple was laid on a table. 
The apples were then sprayed by means of a quart hand sprayer, throwing a very 
fine mist-like spray. The following materials were used: 
No. 1—Black Leaf 40, 1-1200. 
No. 2—Black Leaf 40, 1-400. 
No. 3—Black Leaf 40, 1-1200 plus fish oil soap at the rate of 4 pounds to 100 gal¬ 
lons. 
No. 4—Check. 
The final count of results was made on September 8 and gave the following: 
Hatched 
Unhatched 
Total 
Per Cent 
Unhatched 
No. 1. 
. 7 
38 
45 
84.5 
No. 2. 
. 9 
36 
45 
80.0 
No. 3...... 
. 0 
26 
26 
100.0 
No. 4. 
.19 
5 
24 
20.8 
In the case of No. 1, two eggs were parasitized, No. 2, two eggs parasitized, No. 3, 
three eggs parasitized; the parasites in all cases apparently dead. In the case of No. 
4, two of the unhatched eggs appeared infertile. 
Nicotine sulphate is an effective ovicide for codling moth eggs. The addition of 
soap renders it practically perfect in this regard. 
A. L. Lovett, Entomologist , 
Oregon Experiment Station. 
MEETING OF OHIO ENTOMOLOGISTS 
For some years it has been the custom for the entomologists of Ohio institutions 
to hold an annual meeting, the main purpose being to correlate the entomological 
activities of the State. Such meetings are open to active entomologists and stu¬ 
dents specializing in entomology. 
At the recent meeting held in the botany and zoology building of the State Uni¬ 
versity, thirty-seven entomologists were present and an excellent program of twenty- 
two short papers and addresses was rendered. 
PACIFIC SLOPE BRANCH 
The annual meeting of the Pacific Slope Branch of the American Association of 
Economic Entomologists wih be held at Pasadena, Calif., March 28, 29 and 30. The 
gathering last year was a most successful one and the unusual conditions now pre¬ 
vailing justify and demand the utmost from every entomologist. There is nothing 
better than conference to promote cooperation and efficiency. Geo. P. Weldon, 
Sacramento, is vice-president for the Section and E. O. Essig, Ventura, secretary. 
1 1917. Lovett, A. L. Nicotine Sulphate as a Poison for Insects. Jour. Econ. 
Ent., vol. X, No. 3, p. 333. 
