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SOLIDAGO ODORA Ait. Goldenrod. 
Extracts of the leaves end tops killed only 5 percent of the 
mosquito larvae tested. — Hartzell nnd Wilcoxon ( 188) • 
SOLI DAGO sp. Goldenrod. 
Extracts from the fresh leaves were slightly repellent to the 
Japanese beetle.— Met zger and Grant ( 277 ) . 
SONCHUS OLERACEUS L. Sowthistle. 
Extracts were not repellent to the Japanese beetle.— Met zger and 
Grant (277) . 
SPILANTES ACMELLA (L.) Murr. 
The fruit was used in India as a fish poison aid as an insecticide.— 
Roark (532 , p. 37). 
TAGETES ERECTA L. African marigold. 
An extract of the seeds mixed with kerosene gave poor results rs 
a larvicide.— VTats and Bharucha ( 420 ) . 
TAGETES MIKUTA L. Synonym: T. glandulifera Schrank. 
The khaki bush (T. minima r probably T. minute), e weed common in 
South Africa, contains a strong-smelling volatile oil or mixture of oils 
in its leaves, flowers, pnd seedsj this can be removed by steam distil- 
lation, the yield being about 0.5 percent of the total weight. Baits 
treated with this oil were very repellent to blowflies. In other tests 
to discover a dressing for sheep infested with blowfly lprvr-e, the most 
satisfactory mixture or emulsion contained 20 percent of carbon tetra- 
chloride, 5 percent of Tapretes oil, 6 percent of wool grepse, pnd w*>ter. 
The emulsion broke down soon" after it wps applied, the larvae were killed 
within a minute, and the carbon tetrachloride pnd w^ter soon evnporated.— 
Monnig ( 282 ). 
TAGETES spp. 
Experiments in Natal, South Africa, to control the stalk borer in 
maize were conducted by applying extracts of the Mexican marigold 
(probably T. erecta ) to the tops of the plants. Only the pure oil from 
this plant had any appreciable effect upon the borers. It acted as a 
contact poison and undoubtedly contains a toxic principle, but it is 
far too weak an insecticide to be used commercially against this insect.— 
Ripley and Hepburn (328). 
