-170- 
In India this plant was known to have inaeoticidal or repelling 
properties .--Roark ( 332, p. 9). 
CIM1CIFUGA RACEMOSA (L.) Nutt. Cohosh bugbane. 
The powdered roots, used as a dust, had no effect on crickets; 
and used as a fumigant, an alcoholic extraot, and an aqueous extract, 
they had little or no effect on these insects.— Sayre ( 352 ) > 
Extracts (U.S.P.) were not repellent to the Japanese beetle.— 
Metzger and Grant (277 ) . 
Water extracts (N. F.) of the roots killed only 26 percent of the 
mosquito larvae tested.-- Hartzell and Wilcoxon ( 188 ) . 
CLEMATIS DIOICA L. Honduras- fish poison. 
A water extract was efficient arainst silkworms. — Melndoo and 
Sievers ( 259 , p. 22). 
CLEMATIS VITALBA L. 
In France it was reported that this plant repelled weevils from 
stored grains. Twigs of clematis with leaves and flowers were placed 
on the bags of grain. Grains thus treated were free from infestation 
while weevils were plentiful in the vicinity .--Anonymous (19). 
COPTIS GROENLANDICA (Oeder) Fern. Gold thread. 
Aoetone extracts of the whole plant killed 55 peroent of the mos- 
quito larvae tested.— Hartzell and Wile oxon ( 188 ) . 
DELPHINIUM AJACIS L. Rocket larkspur. 
This plant is listed as an insecticide.— Greshoff ( 170 , p. 8). 
The insecticidal value against bedbugs was due mostly to the oil 
extracted from the seeds, while the alkaloid axtracted played an insig- 
rnflnmt part.— Williams ( 427 ). 
DELPHINIUM BICOLOR Nutt. Low larkspur. 
Powders from the roots, leaves, stems, and blossoms, and extracts 
from these powders had no effect on webworms, silkworms, grasshoppers, 
and potato beetle larvae, the one exception being a slight effect on 
silkworms caused by the ertract from the blossoms. — Molndoo and Sievers 
(259, p. 22). 
