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BROOKS, A. J. (196 9) 
1925. WORK CONNECTED 171 TH INSECT AH) FUNGUS PESTS AND THEIR CONTROL. 
Gambia. Arm. Rept . Dept. Agr. 1924, pp. 13-18. [Abstract in Rev. 
Appl. Ent. (A) 13: 554. 1925.] 
Semiweekly fumigation with nicotine for the first month followed 
"by weekly fumigations as long as necessary is advised for the control of 
silverfish, Lepisma . 
2. Orth opte ra, Earwigs, a nd Termi tes, 1909-1930 
SCHROEDSR, J. (1970) 
1909. VERSUCHE ZUR BEKAMPFUNG DER tfANDERHSUSCKRECKS MIT CHEMISCHEN 
PRGDUKTEN. Ztschr. Pflanzenkrankheiten 19: 1-1.3, illus. 
A portion of a large swarm of the migratory locust (wingless 
young) was put in an enclosure in Uruguay. The insects were sprayed 
with a solution consisting of 5 1. tobacco extract (10 percent nico- 
tine) and 100 1. water. TCithin 12 hours 40 percent of them were dead. 
Another portion of the grasshoppers was sprayed with the same solution 
to which had been added 2 kg. molasses. 17ithin 12 hours 41 percent of 
them were dead (pp. 10-11). 
ROBERT, J. (1971) 
1914. EPHIPPIGER, SPP. INJURIOUS TO THE VINE. Soc. E'tude Vulg. Zool. 
Agr. Bull. Bordeaux 13(7): 114-116, illus. [in French. Abstract in 
Rev. Appl. Ent. (A) 3: 188. 1915.] 
Spraying with nicotine, or dusting with nicotined sulphur, may 
drive grasshoppers away, but the effect is usually temporary. 
LUNARDONI, A. (1972) 
1915. ON TEE CONTROL OF GRASSHOPPERS. Boll. Minist . di Agr., Industr. 
e Comnercio Ser. 3. Anno 14 (v. 1): 258-270. [in Italian.] 
A 15 percent solution of phenicated tobacco extract had scarcely 
any effect upon the grasshoppers treated (p. 264.) 
LARRIMER, ff. H. (1973) 
1921. GRASSHOPPER AND CRICKET REPELLENTS. Jour. Econ. Ent. 14: 259- 
263. 
Black Leaf 40 (l tablespoon to 1 pt . water) was mixed with bran 
bait and then offered to the insects. Of the 14 repellents tested it 
was fourth in efficiency, the three more effective ones being copper 
sulphate, kerosene, and auto oil (pp. 251-263). 
