•■ ■ - 42 - -• • ' 
UPENIECK, N. ■ ■■ . .'■.;■' '(1X5)' 
AN EXPERIMENT IN ORGANIZING GANGS OF WORKMEN FOR TEE CONTROL 
OF PESTS OF CITRUS TREES IN 1915. Russian Subtropics 
no. 11-12: 29-72. 1916. [In Russian. Al)stract in Rev. Appl. 
Ent. (A)5: 356-357. 1917.] 
Aphids on citrus can te effectively controlled with a 
decoction of quassia containing 1.3 percent of soft soap. 
v., S. (116) 
ON THE REPLACEMENT 0? QUASSIA BY TOBACCO. Flniit-Growing, 27( 8-9) : 
378-379. 1916. [In Russian. Abstract in Rev. Appl. Ent. 
(A) 4: 495. 1916.] 
As a substitute for quassia decoction and soap, tobacco and 
soap may be used. 
VELICHKEVICH, A. I. (117) 
INSECTS INJURIOUS TO ONIONS IN THE NOVGOROD GOVERNl^IENT . 
Defense des Plantes 4(4-5): 717-728. 1927. [In Russian. 
Abstract in Rev. Appl. Ent. (A) 16: 367. 1928.] 
As Hylemyia ant iqua Meig. , Eumerus strigatus Fall. , and 
Muscina stabulans Fall, may begin to lay eggs on onions in the 
store or before they are transplanted, it is advisable that 
they be treated before being planted. The various substances 
recommended by others for this purpose are enumerated, the 
best results being obtained with quassia. 
WAHL, B. (118) 
DIE BEK^MPFUNG DER BLATTLJlUSE (APHIDAE) . Reprint from 
Monatsh. Landw. 1913, Wien, 4 pp. [Abstract in Rev. Appl. 
Ent. (A) 1: 471. 1913.] 
Among the summer remedies for the common green fly (aphis) 
is the following: 
Quassia and soft soap mixture: 3 pounds of quassia chips 
are boiled in 2 gallons of water and left standing 24 hours; 
the liquid is then po\ired off; this is mixed with an equal volume 
of neutral soap solution, made by dissolving 5 pounds of soap 
in 2 gallons of water. 
WAHL, C. von (119) 
DIE GESPINSTMOTTEN. Hauptstelle fllr Pflanzenschutz in Baden au 
der Grossh. Landw. Versuchsanstalt Augustenberg. Flugblatt 
no. 5. 1916. [Abstract in Rev. Appl. Ent. (A) 8: 288. 1920] 
Remedial measures against Hyponomeuta malinellus and H. 
variabilis are spraying vith soft-soap solutions containing 
nicotine or quassia. 
