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JATZENTKOVSKY, E. V. (6l) 
EXPERIMENTS ON THE CONTROL OF'ERIOSOMA ( SCHIZONEUEA) LANIGEEUM . 
HA.USM. , IN THE PROVINCE OF TEUK. Agr. Gaz. (Petrograd) 
no. 42(158): 1101-1102. 1916. [In Russian. Abstract in Rev. 
Appl, Ent. (A) 5: 395-396. 1917.] 
Q,uassia emulsion (5 pounds of quassia and 6 pounds of 
grey soap in 25 gallons water) was of no use against Eriosoma 
lanigeram . 
JEGEN, G. (62) 
DIE ROTE SPINIH. Schweiz. Ztschr. Obst- u. Weinbau 27: 
177-182. 1918. [ADstract in Rev. Appl. Ent. (A) 6: 381. 1918.] 
A mixture of equal parts of 1 percent soft soap and 2 
percent quassia solutions is one of the best sprays against 
Tetranychus (red spider). 
KITCHUNOV, N. I. (63) 
CULTIVATION OF HJSH-FRUIT. Prog. Fruit Growing and Market- 
Gard. , Sup. 139 px). 1916. [In Russian. Abstract, in Rev, 
Appl. Ent. (A) 4: 333. 1916.] 
Pests of currants include Aphis pomi ( mali) , which can be 
controlled by spraying with quassia. 
KONDRATIEV, P. (64) 
ON THE QUESTION OF FIGHTING INSECT PESTS. Prog. Fruit Growing 
and Market Gard. 30: 933-934. 1914. [In Russian. Abstract 
in Rev. Appl. Ent. (A) 2: 615. 1914.] 
The following recipe is given for a preparation used 
with success in the author' s hothouses: A wine bottle 
half filled v;ith equal parts of tobacco extract and quassia 
is filled up with crude spirit; this mixture is left for 10 
to 12 davc-, in a warn place and then, after dilution with an 
equal qiia:.tity of water, is evaporated to half its bulk, 
when the npirit evaporates and a watery extract of tobacco 
and quassia remains; to this a piece of camphor the size of 
a walnut is added. This mixture is evaporated over a lamp in 
the hothouse at night. 
KORFF, G. and BONING, K. (65) 
^SELLERIEWANZEN UND IHRB BEKImPFUNG. Prakt. El. Bayer. 
Landesamt. Pflanzenbau u. Schutz (n.s.) 11: 221-226. 1934. 
Experiments were carried out with sprays containing 
soft soap alone and with added agents for the control of 
