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lead arsenate and fish oil. — Connecticut Agricultural Experiment 
Station (120 ). 
Rhopobota naevnne (Hbn.), the black-headed fireworm 
In Washington rotenone preparations were tested from 1959 to 
1942* A 1-percmt rotenone dust gave good control of the larvae but 
had little effect on the adults, whereas a pyrethrum dust (0.1 percent 
of pyrethrins) destroyed both stages. A proprietary spmy material 
(Visco) containing pyrethrum and rotenone was also satisfactory. In 
field experiments a higher kill was obtained when the rotenone was in 
solution than when it was in suspension. A combination of rotenone 
and pyrethrum gave better control of both the fireworm and cranberry 
fruitworm than either material alone. Cryolite and lead arsenate, 
both with oil, were more effective in combination with rotenone than 
when used alone. None of the materials tested were so effective as 
a spray of pyrethrum and rotenone combined .--Crowley (127-129) . 
The second generation was controlled with derris dust (4 percent 
of rotenone) without an activator, applied at 50 pounds per acre. 
Dusting with pyrethrum ©r rotenone material was very effective against 
this pest on cranberry plants in Massachusetts.— Franklin (193 , 194 ) . 
Papilionidae 
Papilio ajax L., the black swallowtail 
Niootine is ineffective, whereas rotenone is effective against 
the larvae on vegetables.— Mc In doo (383) . 
Phalaenidae 
Triphaena pronuba (L.) ( =Agrotis T. p. L.), yellow underwing moth 
The larvae on carnations in England were killed by derris powder. 
— Speyer (558 ) • 
Agrotis ypsllon (Rott.), the black cutworm 
Derris dusts were not very effective against this species and 
other Agrotinae on cabbage in the field in South Carolina.— Reid and 
coworkers (499) • 
Antioarsia gemmatilis (Hbn.) , the velvetbean caterpillar 
Rotenone-containing insecticides were almost entirely ineffective 
against half-grown larvae on vegetables in Alabama. — Arant ( 22 , 26) . 
