-10- 
Acetone extracts of the rhizomes and the oleoresln (25 p.p.m.) 
killed 100 percent of the mosquito larvae tested# A 0.1-percent con- 
centration of filicin killed 99 and 96 percent of the bean aphids 
tested.— Hartzell and Wilcoxon ( 188 ) • 
ONOCLEA SENSIBILIS L. Sensitive fern. 
Acetone extracts of the rhizomes killed only 10 percent of the 
mosquito larvae tested.— Hartzell and Wilcoxon ( 188 ) . 
PHYLLITIS SCOLOPENDklbM (L.) Newman. Hartstongue. 
Extr^ its were not repellent to the Japenese beetle.— Met zger and 
Grant (277). 
POLYS TI CHUM AGROSTICHOIDES (Michx.) Schott. Christmas fern. 
Acetone extracts of the rhizomes killed none of the mosquito 
larvae tested. — Hartzell and Wilcoxon ( 188 ) ♦ 
PTERIDIUM AQUILINUM (L.) Kuhn. Bracken. 
In Spain it was suggested that fern leaves be placed among clothes, 
for it was claimed that clothes moths do not deposit eggs in the presence 
of these leaves.— Anonymous (27). 
Extracts were not repellent to the Japanese beetle.— Metzger and 
Grant (277). 
PTERIDIUM LATIUSCULUM (Desv.) Hieron. Bracken. 
Acetone extracts of the rhizomes of this fern killed none of the 
mosquito larvae tested. — Hartzell and Wilcoxon ( 188 ) . 
POLYPORACEAE 
(Bracket Fungi) 
FOMES OFFICINALIS (Fr.) Faull. Synonym: Polyporus o fficinalis Fr. 
Larch agaric. 
Agaricine (10 percent in flour) and aparicus alba had no per- 
ceptible effect on caterpillars of Prodenia litura (F.). — OeBussy (76) . 
[These botanical drutrs are derived from this species»J 
Extracts from this funrus were not repellent to the Japanese 
beetle.— Metzerer and Grant (277). 
