- 490 - 
WAHL, 3. (2095) 
1913. REMEDIES AGAINST APHID3. Monatsh. Landw. Mitt. 
Pf lanz ens chut z station [wien], Reprint, 4pp. [in German. 
Abstract in Rev. Appl. int. (A) ~ l > 471. 1913.] 
Among the remedies recommended are the following: (1) a 
good solution is made up of 3 lb. tobacco extract and 3 lb. soft 
soap, to 20 gal. water; (2) 2 to 3 lb. tobacco extract and 1/4 to 
l/2 pt. lysol or demilysol in 20 gal. water; and (3) for fumiga- 
tion in hot houses, tobacco powder is mixed with wood charcoal in 
a vessel and allowed to burn for 12 hours, or tobacco extract is 
steamed on hot iron plates, it being first of all diluted with twice 
its volume of water. 
NOEL, p. (2096) 
1314. LES PUCER0N3 DSS S3RRS3 ET LE TABAC NITRE. Jardinage 4 (30): 
401-402, illus. [Abstract in Rev. Appl. Ent. (A) 2- 688. 1914] 
Greenhouse aohids invariably succumb to the following treatment: 
Factory tobacco waste costing about 9 cents a pound is steeped 
for 1 hour in a cold concentrated solution of potassium nitrate and 
then dried in the sun. From 2 to 20 lb. of this product, according 
to the size of the greenhouse is placed in a flower pot in the center 
of the floor and set alight in the evening after all openings have 
been closed. The eggs will not be affected and a second fumigation 
is necessary 4 or 5 days later in order to destroy the newly hatched 
individuals before they have time to oviposit. 
WHITMARSH, R. D. (2097) 
1915. S0:.:E IMPORTANT INSECT FESTS OF THE GREENHOUSE, Ohio Agr. Expt. 
Sta. Circ. 154, pp. 93-104, illus. [Abstract in Rev. Appl. 
Ent. (A) 3.: 761-762. 1915.] 
Nico-fume 1/2 pt. and lime-sulphur 2 qt. well mixed in 25 
gal. water proved satisfactory against the red spider. Fumiga- 
tion with Nico-fume sheets is advised against aphids, but all 
marketable blooms should first be gathered. The same method is 
satisfactory against mealybugs, or spraying with Nico-fume 
solution and soapy water, from 2 to 4 teaspoonfuls to the gal. 
GEORGESON, C. C (2098) 
1916. REPORT OF THE ALASKA AGRICULTURAL EXPERIMENT STATIONS 1915. 
U. S. Dept. Agr. pp. 41-42. [Abstract in P.ev. Appl. Ent. 
(A) 5: 189. 1917.] 
A green aphid in greenhouses was controlled by fumigation 
th nicotine paper. 
