408 Report oF THE ENTOMOLOGISTS OF THE 
It was with the intention of combating the looper that an effort 
was made to find a substance that could be made to adhere uni- 
formly to the surface of the leaves of cauliflower and cabbage. 
Most of the tests given were made, and effects on cabbage looper . 
noted, for this purpose. The results obtained on the cabbage 
worm were of secondary importance as compared with results 
sought on the cabbage looper. ‘The tests have proven as satisfac- 
tory as could be expected. 
The letters from Mr. Baylis and from Mr. Goodale show that 
the results were worth far more than the cost of treatment, 
although they considered the results obtained from the treat- 
ment of the cabbage worm as well as the looper. The results 
obtained from the treatment of cauliflower were not as satisfac- 
tory as those from the treatment of cabbage, but when we con- 
sider the character of the plant combined with the habits of the 
pests to be treated the results were better than should be expected. 
For the most part the leaves of cauliflower grow in a vertical 
position; hence it would be not only a waste of material but also 
of time to attempt to treat them with a dry insecticide. Fair 
results might be obtained on cauliflower by the use of insecti- 
cides which kill by contact, but these would only be practical 
While the plants are small and would need to be applied every 
week, as eggs and full grown caterpillars are lable to occur on 
the plants at the same time. As already stated the use of trap- 
crops is of doubtful value for the cabbage worn. ‘They are 
surely of no value for the looper, even though combined with the 
removal of old cabbage stumps from the field and the destruction 
of weeds along roadsides and borders of fields, for, as has been 
shown, the leoper has no fixed food plant. (It is not the inten- 
tion to discoutage the destruction of weeds on the borders of 
fields, or the clearing up of old cabbage fields. This should be 
done on general principles.) The capturing of the moth of the 
cabbage looper by any means is also impractical. Hence for 
this pest, as far as tested, we have no alternative but to use an 
