- 107 - 
Apogonir. cri"brlcollls Burm. 
Adult«! of thii? beetle verc ur;cd "by tho F->der!^ted I'felny States DcpartTiont 
of Agriculturo (125) in I93U in te=;ting the insccticidp.l value of Derrls 
clllpticp and D. mplaccensiq . Adults vrre dusted with a povdcr made "by pre- 
cipitating an aqueous extract of dcrris root ( Perris malacconpig "ar, sarovak - 
cngis ) . The pa-no prei^aration mixc-d with an equal weight of tapioca flour was 
also tester!., Neither caus^^d anr mortality.- Miller ( 286 ) in 1935. 
Autoserica ca^stanea (Arrow), the Asiatic garr.'-n beetle 
Hamilton ( 172 ) in I937 reported that Asiatic garden beetles on various 
flowers wcrr frirly well controlled by a spray of U pounds of derris or cube 
povrdrr (U percent of rotenono) and U pounds of rosin-residue emulsion p^r 100 
gallons of water. The spray acts r>o ^ repellent. The eff'-ctive period vras 
U to 5 days. C-^ntrol is not so good -as for Japanese beetle. 
The Few J.-rsey Stat" A-^ricultural Sxppriment Stv^tion ( 298 ) in I938 
reported that Asiatic garden beetles were repelled for U to 8 days or more 
by tho application of a spray of derris or cube powd^-^r plus rosin-residue 
emulsion in water. 
Autoserica sp. 
Adults of this beetle vrere us-:d by the Federated 1-talay States Department 
of Agriculture (l25_) in 193^ in testing the insecticidal value of Derris ellip - 
tic=> and D, malaccensis . 
Adult beetles were dusted with a powder made by precipitating an aqueous 
extract of derris root ( Derris malaccensis ' var. sarfiv/akensis ) . Only 20 pT- 
cent were killed. The sane prepar,"' tinn nixed with an enual vreight of tapioca 
flour killed 15 percent,— hillrr (2f6_) in 19:^5. 
Cetonia aura t a (L.) 
This pest on rose^ wr, 9 raitig^ted by r product containing 12 percent of 
povrdcred LoncKoerrpus nicou root (of 6 percent rotenone content) and ^Si percent 
of trlcum^ acxcrding to a letter from EtablisseraentR Rotenia, jintwerp, Belgium, 
to R. C. Ronrk xn 193-=?. 
i'^acrodactylus subspinosus (F.), the rose chafer 
Accoraiiig to a sch- dul^ of treatments by Cory (SJ) in 19!^8 issued for 
the control of ro^e jjests in Maryland, ro tenon, dust was recommended for use 
against roc: tu.vrs. 
The How Jersey Stat'- Agricultural E:<,>-ri„.nt St--.tion (20S) in 1938 
re-oortcd that rof?e chaf ^ r-^, wer-^ repelled for U to 8 days or moi-t by the applic- 
ation of a spiay of derris or cube powder r)lus rof^.in-re-:idue emulsion in water, 
Par'-rs and Pi^retvjrff (3_12) in 1^3? r^^cem - nd-d lotenope apr^y (U pounds 
of dcrris of k pf recent rotcnon<: content p.- r 100 gallons of wat -r) for the 
control of the rose chaf-r. 
