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HELIOPSIS HELIANTHOIDES (L.) Sweet sunflower. Heliopsis. 
Extracts from these plants were not repellent to the Japanese 
beetle*— Met zger and Grant (277 ) . 
HIERACIUM PRATENSE Tausch. Hawkweed. 
Extracts from the entire plant were repellent to the Japanese 
beetle. — Metzger and Grant (277 ) • 
INULA CONYZA DC. Synonyms: I* squarrosa Bernh., Conyza squarrosa L. 
Cinnamon root* 
/ 
This plant is listed as an insecticide.— Lyons (248 , p. 246). 
INULA HELENIUM L. Elecampane. 
This species was said to protect clothing from the clothes moth. 
Extracts of flowers collected in England did not kill the larvae of the 
birch mocha moth.— Tutin ( 403 ) • 
Extracts were not repellent to the Japanese beetle.— Metzger find 
Grant (277). 
A strong concentration of acetone extracts of the roots killed 
100 percent of the mosquito larvae tested,- and a 0.2-percent concen- 
tration killed 34 and 40 percent of the bean aphids, while an 0.18- 
percent concentration of steam-distilled roots killed 79 and 90 per- 
cent of these aphids. — Hartzell and Wilcoxon ( 188 ). 
INULA VISCOSA (L.) Ait. Synonym* Erigeron viscosus L. 
This was reported to be one of the most common plants in Greece. 
The fumes of the burning plant had the same stupefying effect on mos- 
quitoes as those of Caucasian insect powder.— Landerer ( 240 ) . 
The flower heads were inactive against flies.— Passer ini (3 03 ). 
KRIGIA BIFLORA (Walt.) Blake. Cynthia. 
LACTUCA CANADENSIS L. Wild lettuce. 
Extracts were not repellent to the Japanese beetle.— Metzger and 
Grant (277). 
LACTUCA sp. Lettuce. 
A spray, made by boiling 20 to 30 minutes 1 pound of lettuce plants 
from which the 6eed head has begun to shoot in 2 gallons of water and 
strained, w.s recommended for eradicating the cabbage moth and cabbage 
aphid in New South Wales.— Fuller (148). 
