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FAGUS GRANDIFOLIA Ehrh. American beech. 
Extracts were not repellent to the Japanese beetle*— Metzger 
and Grant (277), 
QUERCUS ALBA L. White oak* 
Extracts of the leaves killed 25 percent of the mosquito larvae 
tested*"Hartzell and Wilcoxon ( 188 ), 
QUERCUS COCCINEA Muench. Soarlet oak* 
Extracts of the leaves killed 35 percent of the mosquito larvae 
tested*- Hartzell and Wilcoxon ( 188 ) • 
QUERCUS RUBRA L. Common red oak* Same as for Fagus grandifolla . 
QUERCUS spp* 
Tannin was ineffective for mothproofing*— Jackson and Wassell 
(219 , p. 1177). 
Woolen fabrics were protected from moths by treatment with a 
3-percent tannin solution and then a bath of antimony salt.— Roark 
(333, p* 103)* 
The oommercial extracts of gallnut and valonia were effective 
repellents against the Japanese beetle*— Metzger and Grant ( 277 ) . 
QUERCUS VELUTINA Lam. Black oak. Quercitron. 
Extracts of the fresh leaves and a commercial extract were ef- 
fective repellents against the Japanese beetle. — Metzger and Grant 
(277). 
Extracts of t 1 e leaves killed only 10 percent of the mosquito 
larvae tested.— Hartzell and Wilcoxon ( 188 ) . 
FLACOURTIACEAE 
GYNOCARIDA ODORATA R. Br. Chaulmoogra. 
The fruit was used as a fish poison and as an insecticide in 
India.— Roark ( 332 , p. 23)* 
Rare earth salts of chaulmoogric acid were claimed for mothproof- 
ing (Brit, patent 2^7,2^2; Fr. patent 603,552; U. S. patent 1,739,340).— 
Roark (333, p. 37). 
