INJURIOUS INSECTS OF I909 AND IQIO. 49 
This gives a total count as follows: (T) treated 129 tied, 61 
not tied, but in good condition—three rows. Check (C) 213 tied, 
51 not tied—four rows. Reducing these figures to a comparative 
basis, we would have on the basis of three check rows instead of 
four, at the same rate of infestation as was found to be present in 
the four, 160 tied plants and 38 headed but not tied, to be com- 
pared with 192 tied and 61 headed in the three treated rows. This 
gives a balance of 32 tied and 23 headed but not tied in favor of 
the treated plants in three rows, or a total of 55 heads saved in 
the treated rows, that is 55 heads saved by treating 825 plants. As 
there are usually about 7,000 cauliflower plants to the acre, this 
would mean a saving of about 467 heads an acre by this treatment. 
But it must be remembered that this was not a fair test, as the 
treatment was applied a considerable time after the plants were set 
out, and the discs were allowed to get badly covered up with earth 
for a considerable length of time. The regularity with which the 
treatment improved the rows to which it was applied is interesting 
and noticeable. Compare the results of the counts above given, the 
number of heads in each of the check rows, with the treated row or 
rows next to it.. This treatment must be considered by far the 
most satisfactory of all those tried during the season, everything 
considered. 
Experiments with Sawdust and Glue. 
Cauliflowers planted on May 14th, belonging to Mr. Fisher, of 
St. Anthony Park. On May 22d 173 plants in this experiment 
were treated with a preparation made as follows: Four pecks of 
sawdust, 4 pounds of slaked lime, 4 pounds of hard glue, 4 gallons 
of water. The lime was mixed dry with the dry sawdust; the glue 
was dissolved in the water, which was first brought to the boiling 
point, and then the glue and water were added to the lime and 
sawdust and thoroughly stirred up. A handful! of this preparation 
was placed around each plant, covering the surface of the ground 
about the stem of the plant for a radius of about three inches. The 
rows on either side of the treated row were used as checks. Two 
men applied this treatment to the 173 plants in about thirty minutes. 
The glue cost about 25 cents per pound, making the cost of the 
treatment about $1.25 for the 173 plants, which must be considered 
very expensive. 
On June 15th a few of these plants were puiled up, and one out 
of every three were found to be badly infested. The plants were 
