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Formicidae 
Caraponotus herouleanus pennsylvanicus (Deg.), the black carpenter ant. 
Four infested telephone poles were treated with derria powder 
(4.5 peroent of rotenone) by blowing it into the top of the ant galleries 
with a dust gun, 24 grams per hole, and plugging the hole. In one 
pole, after treatment, a thriving colony was found, in two poles some 
ants were still alive, and in one pole all the ants were dead. The 
failure to eliminnte the colonies in three of the poles was attributed 
to improper application of the dust, as the distribution in the galleries 
seemed to be poor.— Friend (201) • 
Formica exsectoides Forel, the Allegheny mound ant 
Enoiroling a large mound with a band, 1 foot wide, of pure ground 
derria root (4 percent of rotenone) praotioally exterminated the colony 
of ants*-- Johnson and Friend (332 ). 
Tenthredinidae 
(Caliroa) Endelomyia aethiops (F.), the rose slug 
One of the more important uses of rotenone powder is to oontrol 
rose slugs.— Howard and coworkers (294 , p. 31). 
Dust the slugs on rose bushes with copper-rot enone dust.— HcDaniel 
(379). 
Caliroa cerasi (L.), the cherry or pear slug 
Airplanes were used successfully in dusting cherry and pear 
orchards with derria compounds to control the pear slug.— Lockwood (370). 
Hoplocampa flava (L.), the plum fruit sawfly 
Yfhen this insect is a pest in England, a spray of 2 pounds of 
derris powder and 1 gallon of white oil per 100 gallons should be ap- 
plied when the w cots B are splitting.— Hey ( 285 ). 
A spray conteining 0.67 percent of grade G oil and sufficient 
material to give 0.004 percent of crystalline rotenone should be used 
against the plum sawfly in England.— Kearns and Martin (339 ) . 
Hoplooampa minuta (Christ) £=H> fulvicornis (Panz.)), the continental 
plum eawfly 
A 3-percent quassia solution gave far better results in eradicating 
