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This plant was used In India as a fish poison and insecticide.— 
Roark (332 , p. 37). 
Extracts from nux vomica (R. F.) were not repellent to the Japanese 
beetle*— Hetsger and Grant (277 ). 
STRYCHNOS spp. 
The following abstracts pertain to the alkaloids brucine and 
stryohnine found in the seed and bark of nux vomica and in other species 
of Stryohnos t 
Plants dipped in 500 cc. of water containing 0*3 gnu of brucine or 
strychnine were fed to caterpillars. The strychnine killed them in 
46 hours, but brucine killed in an average of 67 days.— M&xwell-Lefroy 
and Finlow (272, pp. 278, 280, 281, 314). 
Brucine (10 percent in flour), extract of strychnine (10 peroent 
in water), semen stryohni (100 peroent and 20 peroent in flour), and 
nitras stryohni (10 peroent in flour) were tested against the oaterpil- 
lars o f Prodenia lltura (F.) . The first three materials had no peroep- 
tible effect on the insects while the fourth material proved rapidly 
fatal.— DeBussy (76). 
Spray solutions of brucine sulfate and strychnine sulfate were 
tested against the bean aphid. In both oases the minimum toxic con- 
centration required to kill about 95 percent of the aphids was greater 
than 0.5 gnu per 100 cc, as compared with 0.009 gnu per 100 cc. of 
niootine sulfate.— Richardson and Smith (322) . 
Brucine has some mothproofing value but insufficient for practical 
use.-- Hinaeff and Wright (281 , p. 1190). 
In laboratory tests brucine used as a dust killed 41 peroent of 
oodling moth larvae* Stryohnine killed 52.8 peroent.— McAlister and 
Van Leeuwen (249) . 
There are three patents (Brit* 527,000, Ger. 626,611 and 595,849) 
in which brucine and stryohnine are used as insecticides in mothproof- 
ing.— Roark (335 , pp. 21, 82) and Roark and Busbey (346 , pp. 11, 85) • 
A solution of stryohnine increased the heart activity as well as 
the movement of the larvae of Corethra crystalline (Deg.).— Dogiel 
(120 , p. 26). 
Stryohnine sulfate had no effect on wireworms.— Comstock and 
Slingerland (102 , p. 210) and Hyslop ( 209 , pp. 30-32). 
