-63- 
An alkaloid was isolated from the root bark, oalled tripterygine, 
which was proved to be a strong inseoticidal substanoe*--Hwang (207) • 
The poison of this plant has been found in the root bark* Its 
chemical nature has been investigated by the U* S. Department of Agri- 
culture, and thousands of cuttings sent from China are being grown at 
the Departments plant-introduction garden at Glenn Dale, Md»~ 
Anonymou8 (35) • 
For a long time the Chinese market gardeners have made use of the 
powdered roots to kill insects which eat the leaves of vegetables* 
Seven Chinese papers are cited dealing with the insecticidal value of 
this plant which has been introduced into the United States* When 
tested against codling moth larvae, at the rate of 2 pounds per 50 
gallons of solution, the root powder gave about 60 percent of olean 
fruit* An alcoholic extract of 'the fresh root, used at the rate of 
2 pounds of extractives per 50 gallons, gave 90 percent of olean fruit* 
The root powder was also very toxic to first instars of the diamondback 
moth and to the cabbage worm, but caused relatively low mortalities on 
first instars of the southern armyworm*— Swingle and coworkers (389 )* 
CHENOPODIACEAE 
(Goosefoot Family) 
ANABASIS APHYLLA L. 
In the past deoade this plant has become important as the commer- 
cial souroe of anabasine, an alkaloid closely related to nicotine* The 
literature on anabasine as an insecticide has been reviewed by Roark (544 ) » 
BETA VULGARIS L. Sugar beet* 
Betaine hydrochloride was ineffective for mothproofing*— Jackson 
and Wassell (219 , p* 1177)* ^Betaine is derived from beet juice*] 
Betaine fluosulfonate was used for preserving textile fabrics (U* S* 
patent 1,448,276) •— Roark ( 335 , p* 27). 
CHENOPODIUM AWBROSIOIDES L. Synonyms: C. anthelmintioum L*, 
£• ambrosioides anthelminticum A* Gray* American worms eed* 
An infusion and an alcoholic extraot from the blossoms and green 
fruit had no effect on cotton caterpillars. --Riley (525 , p* 186)* 
A water extraot from the dried leaves and seeds had no effect on 
bees* A strong decoction from the leaves, stems and seeds, mixed with 
soap, had no effeot on potato aphids and nasturtium aphids© The powder 
used as a dust had no effeot an tent caterpillars, but a considerable 
effeot on cockroaches j and used as a stomach poison it had no effect an 
grasshoppers*— Mclndoo and Sievers (259, p* 22)* 
