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Either a 1-percent rotenone dust or a 0.3-percent pyrethrins 
dust, applied at the rate of 15 ■*> 25 pounds per acre, was formerly 
recommended for the control of mixed populations of these three 
speoies of cabbage caterpillars. In order to conserve rotenone it 
was reoommended in February 1942 (l) to use a 0.75-percent rote- 
none dust at the same rate, with the provision that if one applica- 
tion is not effective a second application be given, or (2) when- 
ever possible to use a 0.3 percent pyrethrins mixture. Other 
substitutes, such as paris green, cryolite, and calcium arsenate, 
can be used on cabbage only prior to the heading of the plants, but 
for other cole crops they are not recommended at any time after 
thinning or transplanting.-- U. S. Bureau of Entomology and Plant 
Quarantine (626 ), 
Nicotine is ineffective against cabbage caterpillars, A dust 
containing 0.375 percent of rotenone, 1.7 percent of nicotine, and 
10 percent of sulfur was also ineffective.— TJ. S. Bureau of Entomology 
and Plant Quarantine (j528> P» 135) • 
Rotenone was reoommended against cabbage caterpillars in victory 
gardens.— Watson (667) ; White and Doolittle (683 ). 
Pterophoridae 
Platyptllla antlrrhina Lange, the snapdragon plume aoth 
Rotenone did not give adequate control in California.— Lange (552) • 
Platyptllia carduldactyla (Riley), the artichoke plume moih 
Cube powder, nicotine sulfate, and fixed nicotines, applied as 
sprays, gave limited degrees of control.— Lange (351 ). 
Tlascala finitella (Wlk.), hill fireworm 
Heavy spraying and dusting with materials containing rotenone 
controlled this pest on cranberry plants in Massachusetts.— Franklin 
(196). 
Pyrau8tidae 
Diaphania hyalinata (L.), the melon worm 
Derris dusts containing 0.5 percent of rotenone were less effective 
than 1-percent dusts in Alabama. Cube appeared to be less effective 
than derris and timbo. A derris dust containing 25 percent of sulfur 
