276 Report oF THE ENTOMOLOGISTS OF THE 
a stand on this late planted acre. First, we had planted only 
about one-tenth as many marginal squashes at the first planting 
ag was necessary to supply the large number of beetles with food ; 
and, second, at time of first spraying with Bordeaux mixture 
the late planted cucumbers were just coming up. The result was 
they could not be thoroughly sprayed, and, as soon as the beetles 
had devoured the marginal squashes, they went after the cucum- 
bers, even before they were up. It was interesting to note the 
instinct shown by the beetles in finding the cross rows of squashes 
as soon as they came up. 
Picking on this field was commenced July 30 and continued 
until September 10. In all 148,455 marketable pickles were ob- 
tained from the two acres. These sold for $183.68. The yield 
per acre was 71,727 pickles and the value per acre $91.84. 
At Smithtown Branch but few beetles appeared on the field. 
These came late in June and fed entirely upon the marginal 
squashes. The result was a perfect stand of cucumbers. The 
vines were injured slightly by the first spraying, the 1-to-8 formula 
being used. 
Picking on this acre was commenced July 19 and continued 
until September 3. A yield of 90,536 marketable pickles, valued 
at $113.16, was obtained. In addition, 400 ripe cucumbers were 
sold; about 1,000 ripe cucumbers and 7,000 nubs, actual count, 
were left on the field; making a total yield of 98,936. 
Conclusion.— The results of these tests show three things: 
First, that if the 1-to-8 formula for Bordeaux mixture is used 
young cucumber and muskmelon vines Will be injured; that it 
will make the plants unpalatable and drive the beetles as well as 
any other substance recommended for the latter purpose; and that 
it is much cheaper than covers. Second, that if green arsenite 
is used dry on squash vines before the beetles commence to mate, 
many of the beetles will be killed; also that neither the green 
arsenite nor the lead arsenite are very valuable if used in water. 
Third, that a combination of measures must be used, and, that 
