92 
Plants  Used  as  Insecticides. 
|Am.  Jour.  Pharm. 
\    February,  19 19. 
Eupatorium  Capillifolium  (Lam.)  Small.  Composites.  Dog- 
fennel. 
It  is  used  to  keep  off  insects  and  bugs  by  strewing  on  the  floors 
of  cellars  and  dairies.  (Porcher.) 
Eupatorium  perfoli atu m  L.  Composites.  Synonym  :  Eupatorium 
connatum  Michx.    Eastern  U.  S.  Boneset. 
The  powdered  leaves  applied  to  the  plant  seemed  obnoxious  to 
coiton  worms  (Aletia),  but  the  infusion  from  the  leaves  was  in- 
effective. (Riley.) 
Euphorbia  bicolor.  Euphorbiacece. 
"The  juice  of  E.  marginata  and  E.  bicolor  is  used  to  some  ex- 
tent in  Texas  to  brand  cattle,  it  being  held  to  be  superior  to  a  red- 
hot  iron  for  that  purpose,  because  screw  worms  will  not  infect  the 
fresh  scar  and  the  spot  heals  more  readily."  (Chesnut,  U.  S.  Dept. 
Agr.  Bur.  Animal  Industry,  15th  Ann.  Rept.,  1898,  p.  407.) 
Euonymus  americanus  L.  C  elastracece .  Strawberry  Bush.  East- 
ern U.  S. 
"The  seeds  are  said  to  be  nauseous,  purgative  and  emetic,  and 
are  used  in  some  places  to  destroy  vermin  in  the  hair.  The  leaves 
are  poisonous  to  cattle."  (Porcher.) 
Euonymus  atropurpureus  Jacq.   Wahoo.   Eastern  U.  S. 
Possesses  properties  similar  to  the  above.  (Porcher.) 
Euonymus  europ^us  L.   Spindle-tree.    Europe,  adv.  in  U.  S. 
Seeds  emetic,  purgative,  insecticide.  (Lyons.) 
Fluggea  leucopyrus.  Euphorbiacece. 
Leaves  used  as  an  insecticide.  (Dymock,  quoted  by  Greshoff, 
Kew.  Bull,  No.  10,  1909,  p.  417.) 
Gouania  domingensis  L.  Rhamnacece.  Chew-stick.  West  Indies 
and  Brazil. 
Gouania  tomentosa  Jacq. 
These,  and  other  species  of  Gouania,  are  used  as  insecticides. 
(Greshoff,  1913.) 
Gymnocladus  dioica  (L.)  Koch.  Ccesalpinacecv.  Synonyms: 
Gymnocladns  Canadensis  Lam.  (Kew),  Guilandina  dioica  L. 
Kentucky  Coffee  Tree.    Eastern  U.  S. 
Insects  preying  on  the  foliage  of  this  tree  are  poisoned  by  it. 
(von  Mueller.) 
