-112- 
Extracts applied as sprays, against adult mosquitoes were much 
inferior to the standard mosquitocide. — Wats and Singh ( 42l) , 
LAURUS NOBILIS L. Noble laurel. 
In Belgium it was suggested to rub all wood work and furniture with 
laurel oil to repel flies.— Anonymous (14) . 
The butchers of southern Switterland painted the doors and windows 
of their shops with juice obtained from crushed leaves to keep away 
houseflies and bot flies.— Rehnelt ( 318 ). 
Extracts were not repellent to the Japanese beetle.— Met zger and 
Grant (277). 
LINDERA BENZOIN (L.) Blume. Synonymi Benzoin aestivale (L.) Nees. 
Spicebush. 
Extracts were not repellent to the Japanese beetle .--Met zger and 
Grant (277). 
Acetone extracts of the buds killed 65 percent of the mosquito 
larvae tested.— Hartzell and Wilcoxon (188). 
LITSEA GLAUCESCENS H. B. K. 
LITSEA GUATEMAXENSIS Mez» 
The powdered leaves of these species were used aerainst ants.-- 
S car one ( 353) . 
SASSAFRAS ALB1D01I (Nutt.) Nees. Synonyms i S. variifolium (Salisb.) 
Kuntze; 3* sassafras Karst. Sassafras. 
An alcohol! o extract of the dried root bark had no effect on 
cotton caterpillars.— Riley ( 325 , p. 186). 
The powdered bark was effective against chicken lioe and the dog 
flea, but it was not recommended against these insects.— Abbott ( 37 , 
pp. 7, 11). 
Oil of sassafras plus petrolatum wrs considered one of the best 
repellents against the screwworm. There was no emergence of flies 
from meat treated with it. The powdered bark was effective for only 
2 days.- Parman and coworkers (302) • 
Oil of sassafras was always attractive to cockroaches. — Cole ( lCl ) » 
Extracts of sassafras leaves killed only 5 percent of the mosquito 
larvae tested. — Hartzell and Wilcoxon (188). 
