Am  jour.  Pharm.j       Plants  Used  as  Insecticides.  qc 
February,  19 19.  >  ?D 
officinalis  Garcke.  Savin.  Europe,  northern  Asia  and  North 
America. 
A  decoction  of  the  tops  serves  as  an  insecticide.  (Greshorf.) 
Juniperus  virginiana  L.   Red  Cedar.   Eastern  U.  S. 
The  use  of  red  cedar  boxes  for  storing-  woolens  to  protect  them 
from  moths  is  well  known. 
The  leaves  also  prevent  the  attacks  of  insects  when  spread  over 
cloth.  (Porcher.) 
Ledum  groenlandicum  Oeder.    Ericacece.    Synonym :  Ledum  lati- 
folium  Ait.   Labrador  Tea.   Northern  U.  S. 
It  is  said  to  kill  lice,  insects,  etc.  (Williams,  Trans.  Am.  Med. 
Assoc.,  Vol.  2,  1849,  P-  9X6-) 
Ledum  decumbens  (Ait.)  Lodd.  Wild  Rosemary.  Northern 
Europe,  Asia  and  North  America. 
This  plant  kills  lice,  bed-bugs,  fleas,  moths,  and  other  insects.  It 
is  most  active  when  green  and  in  blossom,  but  the  dried  material  is 
also  effective.  (Ztschr.  allg.  oesterreichischen  Apotheker-Vereines, 
Vol.  13,  July  20,  1875,  p.  346.) 
The  leaves  and  twigs  are  used  as  an  insecticide.  (Lyons.) 
Linaria  Linaria  (L.)  Karst.  Scrophulariacece.  Synonyms:  An- 
tirrhinum Linaria  L.,  Linaria  vulgaris  Mill.  Toad  Flax.  Europe, 
nat.  in  U.  S. 
The  expressed  juice  mixed  in  milk  is  a  poison  to  flies,  and  the 
smell  of  the  flower  also  kills  them.  (Williams,  Trans.  Am.  Med. 
Assoc.,  Vol.  2,  1849,  P-  9X7-) 
Linum  usitatissimum  L.  Linacece.  Flax.  Europe  and  Asia,  cult, 
in  U.  S. 
The  oil  from  flaxseed  will  also  destroy  all  kinds  of  animals  in- 
festing quadrepeds,  when  rubbed  into  the  skin.  (Porcher.) 
Lycoperdon  Bovista  L.  Lycoperdacece.  Synonyms :  Lycoperdon 
giganteum  Batsch.,  Bovista  giganteum  Nees.,  Lycoperdon  cae- 
latum  Frice.    Giant  Puffball. 
Used  in  its  mature  condition  as  a  styptic  and  for  stupefying 
bees.    (Kew  Guide,  quoted  by  Greshoff.) 
Lycopersicon  Lycopersicon  (L.)  Karst.  Solanacea.  Synonyms: 
Ly coper sicon  esculentum  Mill.  (Kew),  Solanum  Lycopersicum 
L,  Lycopersicum  Solanum — Lycopersicum  Hill.  Tomato. 
South  America,  cult,  everywhere. 
