The "borer moths were late in appearing and the first treatment was not 
applied until July 9, followed by three additional .amplications at week- 
ly intervals. This station (272) in 1939 reported that insecticides 
were applied on July 6, 13, 22~~ahd 29, and 40 percent of nicotine sul- 
fate 1:250 permitted an average of 3.06 borer tunnels per vine, a reduc- 
tion of 54,12 percent over the infestation in the untreated plants. 
Cube-clay dust (0.6 percent rotenone), wcttable cube spray (4 pounds in 
100 gallons), and a neutral copper-rotenone dust (0,8 percent rotenone) 
all reduced the infestation approximately 45 percent. Nicotine sulfate 
1:500 plus oil emulsion 1 percent end cube-clay dust (0,75 percent ro- 
tenone) were less effective in the record but obviously v/ere affected 
by the unfavorable weather conditions. 
The Hew York County Agents' Training School (299) in 1938 discussed 
the control of insects attacking vegetables, including the squash borer. 
Dcrris dust with 1 percent of rotenone gave 79 percent control; derris 
spray (4 pounds to 100 gallons), -73 percent control. 
The 'Wisconsin Agricultural Experiment Station ( 488 ) in 1938 repor- 
ted that the effectiveness of dcrris insecticide against this insect 
was improved by including 2 percent of oil emulsion to the spray. 
Crosby, Chupp, and Leiby (87), of the Cornell University Agricul- 
tural Extension Service, in 1939 reported that recent insecticide-control 
tests indicated that dusting the plants with a 1 percent rotenone dust 
will give good commercial control of the insect. Spraying with derris 
or cube at the rate of 4 pounds to 100 gallons cf spray also gave fair 
control, but not quite so ;;ood as the dust. The treatments should be 
started about July 1 end repeated at weekly intervals until 4 or 5 appli- 
cations have been made. The spray or dust should be applied ever the 
ontirc plant. The rotenone in the insecticide kills the newly hatched 
larvae and also seems to have a repellent effect on the moth at the time 
of egg laying. 
Mr. W. J. Haude in 1939 stated, in advertising literature published 
by John Powell and Co., Sew York, i'Jew York, that a v^ettable cube cr 
derris spray (4 pounds to 100 gallons) will give better than 80-percent 
reduction of infestation. 
Amathusiidae 
Amathusia phid ippus (L. ) 
Flippance ( 137 ) in 1920 suggested tuba-root (derris) powder for use 
against the larvee of the large coconut butterfly. 
.-ctiidae 
Arctia caia ( L . ) 
Van der Laan (244) in 1956 reported that this species was not af- 
fected by derris. 
