KEMEDIAL MEASURES. 
55 
dried in the sun. The seeds did not dry thoroughly and tended to 
adhere to one another. This would be a great disadvantage, as it 
would be hard to run these treated seeds through a planter. The 
following summary further shows its impracticability: 
Table V. — Experiments udth kerosene emulsion as a deterrent against the sugar-beet 
wireworm. 
Larvae 
used. 
Seeds 
used. 
Seeds attacked. 
Seeds un- 
touched. 
Larvae 
missing. 
Larvae 
killed by 
fungus. 
Dura- 
tion of 
test. 
Before 
germina- 
tion. 
After 
germina- 
tion. 
50 
50 
25 
25 
25 
25 
15 
15 
10 
10 
10 
10 
G 
10 

4 
6 
4 
2 
3 
3 
6 
3 
2 
2 
7 
\ 

1 

2 
2 
5 
2 
1 




Days. 
20 
Checlc 
20 
Experiment 
30 
Check 
30 
30 
Check .. 
30 
WHALE-OIL SOAP. 
The seeds used in the whale-oil-soap experiment were treated in 
two different ways. At first they were coated with the soap, but 
this method proved impractical (1) because the seeds could not be 
used in a planter and (2) because they tended to rot. The seeds 
were then treated by soaking in a concentrated water solution of the 
whale-oil soap. This second method overcame the objections to the 
first method. The results are summarized below. 
Table VI. — Experiments with ivhale-oil soap as a deterrent against the sugar-beet 
wire worm. 
Larvae 
used. 
Seeds 
used. 
Seeds attacked. 
Seeds un- 
touched. 
Larvae 
missing. 
Larvae 
killed by 
fungus. 
Dura- 
tion of 
test. 
Before 
germina- 
tion. 
After 
germina- 
tion. 
Experiment 
50 
50 
25 
25 
25 
25 
15 
15 
10 
10 
10 
10 
10 
12 
4 
10 
fi 
8 
2 
1 
3 

4 
2 
3 
t 







6 
Days. 
20 
Check 
20 
Experiment 
30 
Check 
4 1 
1 ! 
1 
30 
Experiment 
Check. 
30 
30 
This table shows that the treatment of the seeds with whale-oil 
soap holds little promise of success. 
TAR WATER. 
Since satisfactory results in seed protection by coating the seeds 
with tar have been reported, it was thought possible that similar 
results might be obtained by soaking the seeds in tar water. In 
this way it should give the benefits of coating the seeds with tar, 
