28 
Plants  Used  as  Insecticides. 
[Am.  Jour.  Pharm. 
January,  19 19. 
Tested  upon  the  cotton  worm  (Aletia)  neither  the  alcoholic  ex- 
tract of  the  fruit  nor  the  alcoholic  extract  and  decoction  of  the 
leaves  produced  any  effect.  (Riley.) 
^sculus  Pavia  L.    Msculaceae.    Red  or  Little  Buckeye.  South- 
eastern U.  S. 
Bedsteads  made  of  the  horse-chestnut  are  said  not  to  be  infested 
by  bugs.  (Porcher.) 
Agave  Americana  L.    Amaryllidacece.    American  Aloe,  Century- 
plant.    Tropical  America. 
The  infusion  of  the  leaves  can  be  applied  as  an  insecticide,  (von 
Mueller.) 
Ailanthus  glandulosa  Desf.    Simambacece .    Tree  of  Heaven. 
China,  cultivated  in  the  U.  S. 
Prof.  Meehan  states  that  it  checks  the  spread  of  the  rosebug,  to 
which  the  tree  is  destructive,    (von  Mueller.) 
Some  years  since,  when  a  caterpillar  was  stripping  the  oaks  in 
front  of  my  yard,  I  observed  that  some  which  had  ascended  an 
ailanthus  tree  (frequently  called  the  tree  of  heaven)  fell  from  it 
paralyzed  and  soon  died.  So,  when  the  caterpillars  attempted  to 
cross  my  fence,  I  placed  in  their  way,  at  short  intervals,  branches 
of  ailanthus  leaves,  and  killed  immense  numbers  of  them,  effectually 
protecting  my  yard  and  garden.  (Correspondent  in  Mississippi  to 
Riley.)  The  decoction  and  infusion  of  the  leaves  produced  no  effect 
on  cotton  forms  (Aletia).,  (Riley.) 
Aloe  L.,  sp.  div.  Liliacece.  The  resin  is  an  insecticide.  (Greshoff.) 
Aloe  ferox  Mill.    Liliacece.    South  Africa.    Inspissated  juice  of 
leaves.    Cape  Aloes. 
The  bitter  sap,  used  for  dressing  wounds,  keeps  off  flies,  very 
effectually,    (von  Mueller.) 
Aloe  vera  (L.)  Webb.  Liliacece.  Synonyms:  Aloe  perfoliate^  var. 
vera  L.,  Aloe  vulgaris  Lam.,  Aloe  Barbadensis  Mill.,  includes 
Aloe  indica  Royle  and  Aloe  litt oralis  Koenig.  Source  of  Bar- 
badoes  Aloes.  India  to  northwestern  Africa,  nat.  in  West  Indies. 
Powdered  Barbadoes  aloes  was  on  one  occasion  found  quite  as 
effectual  as  insect  powder.  (Mason  in  discussion  of  article  by 
Kirkby,  Pharm.  J.  &  Trans.,  3d  Ser.,  Vol.  19,  Sept.  22,  1888,  241.) 
Amanita  muscaria  (L.)  Pers.  Agaricacece.    Synonym:  Agaricus 
Muscarius  L.   Fly  Agaric.  Europe. 
