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SOLANUM JAMES I I Torr. 
After eating leaves of this apeoiee, potato beetle larvae turned 
black and died.— Marohal and ooworkers ( 267 ), 
SOLANUM NIGRUM L. Blaok nightshade. 
A remedy for the woolly aphid in Europe is a deoootion of the 
fresh plant, which is brushed on the infected parts of the trees.— 
Regel (317), 
A deoootion used as a spray against aphids was only partly ef feet ire. — 
Thiele (598 , p. 165). 
An infusion or extract of the unripe fruits was toxio to insects, the 
toxic prinoiple being solanine, an alkaloid present in a number of solana- 
oeous plants* It was cheap, and a 0.05-percent aqueous solution was used 
for spraying*— Pollaool and Gallotti (507) • 
SOLANTJM TUBEROSUM L. Potato* 
Concentrated potato water rubbed on oattle slowly rid them of lioe.— 
Gillette (167 , p* 186). 
Potato star oh was ineffective against oookroaohes.— Scott and oo- 
workers (361 , p* 14)* 
Extraots of potato plants were not repellent to the Japanese beetle.-- 
Metsger and Grant (277 )* 
Comments by reviewer *— There is no scientific basis for the early 
reports that the potato plant is poisonous* When staroh, whioh is ob- 
tained from the potato and other plants, is used in connection with in- 
secticides, it acts meohanically, as does flour. 
WITHANIA SOMNIFERA Dunal* 
This plant is listed as an inseotioide.— Greshoff ( 171 , p. 143). 
SPARGANIACEAB 
(Bur-Reed Family) 
SPARGANIUM AMERICANUM Nutt* Bur reed. 
Extraots were not repellent to the Japanese beetle •— Metsger and 
Grant (277)* 
