﻿28G 
  

  

  Vargas 
  Vergara 
  (J. 
  M.). 
  El 
  mi6n. 
  [The 
  froghopper 
  (Tomaspis 
  hogo- 
  

   tensis).] 
  — 
  Rev. 
  Minist. 
  Ohras 
  Publicas, 
  Bogotd, 
  xii, 
  nos. 
  10-11-12, 
  

   Oct.-Nov.-Dec. 
  1913, 
  pp. 
  470-472 
  and 
  547. 
  

  

  For 
  years 
  pastures 
  in 
  the 
  Tocaima 
  and 
  Casasviejas 
  region 
  of 
  Colombia 
  

   have 
  suffered 
  from 
  the 
  ravages 
  of 
  an 
  Homopteron 
  of 
  the 
  genus 
  

   Tomaspis. 
  Specimens 
  sent 
  to 
  the 
  Imperial 
  Bureau 
  of 
  Entomology 
  

   have 
  been 
  determined 
  as 
  T. 
  hogotensis, 
  Dist., 
  sp. 
  n. 
  The 
  insect 
  is 
  

   known 
  locally 
  as 
  el 
  Mion. 
  

  

  Weldon 
  (G. 
  p.). 
  a 
  case 
  of 
  arsenical 
  injury 
  to 
  apricot 
  trees. 
  — 
  Mthly. 
  

   Bull. 
  State 
  Comm. 
  Hortic, 
  Sacramento, 
  Cal., 
  ii, 
  no. 
  12, 
  Dec. 
  1913. 
  

   pp. 
  766-768, 
  2 
  figs. 
  [Received 
  22nd 
  April 
  1914). 
  

  

  It 
  has 
  been 
  known 
  for 
  some 
  time 
  that 
  arsenic 
  applied 
  to 
  trees 
  in 
  the 
  

   form 
  of 
  lead 
  arsenate, 
  Paris 
  green, 
  etc., 
  for 
  the 
  control 
  of 
  insect 
  pests, 
  

   may 
  accumulate 
  at 
  the 
  crown 
  of 
  the 
  root 
  and 
  a 
  sufficient 
  amount 
  

   become 
  soluble 
  to 
  corrode 
  the 
  bark 
  and 
  girdle 
  the 
  tree. 
  The 
  foliage 
  

   becomes 
  small 
  and 
  yellow 
  early 
  in 
  the 
  season 
  ; 
  usually 
  the 
  crop 
  is 
  

   heavy 
  and 
  also 
  highly 
  coloured. 
  Longitudinal 
  cracks 
  occur 
  in 
  the 
  

   bark 
  which 
  may 
  also 
  be 
  of 
  an 
  unnatural 
  colour. 
  In 
  all 
  cases 
  the 
  injury 
  

   to 
  the 
  bark 
  begins 
  on 
  the 
  outer 
  surface, 
  and 
  gradually 
  eats 
  its 
  way 
  

   through 
  to 
  the 
  cambium. 
  The 
  wood, 
  both 
  of 
  trees 
  and 
  roots, 
  is 
  more 
  

   or 
  less 
  blackened, 
  and, 
  when 
  injury 
  is 
  at 
  all 
  severe, 
  girdling 
  and 
  death 
  

   takes 
  place. 
  

  

  A 
  case 
  of 
  injury 
  to 
  apricot 
  trees 
  is 
  noted 
  from 
  King's 
  County. 
  Early 
  

   in 
  the 
  season 
  climbing 
  cutworms 
  gave 
  great 
  trouble 
  and 
  the 
  owner 
  of 
  

   the 
  orchard 
  heaped 
  a 
  mash 
  of 
  bran 
  and 
  Paris 
  green 
  about 
  the 
  root 
  

   crowns 
  of 
  the 
  affected 
  trees. 
  Later 
  the 
  orchard 
  was 
  irrigated 
  and 
  the 
  

   trees 
  soon 
  became 
  sickly, 
  many 
  dying 
  outright. 
  On 
  28th 
  October 
  

   some 
  of 
  the 
  trees 
  were 
  still 
  alive, 
  but 
  showed 
  the 
  characteristic 
  

   symptoms 
  of 
  arsenical 
  injury. 
  It 
  seems 
  probable 
  that 
  alkali 
  in 
  the 
  

   soil 
  and 
  water 
  aided 
  the 
  breaking 
  down 
  of 
  the 
  Paris 
  green, 
  thus 
  

   liberating 
  soluble 
  arsenic 
  which 
  damaged 
  the 
  trees. 
  Orchard 
  owners 
  

   are 
  warned 
  to 
  be 
  moderate 
  in 
  the 
  use 
  of 
  arsenic, 
  and 
  if 
  there 
  is 
  any 
  

   possibiUty 
  of 
  the 
  formation 
  of 
  a 
  collar 
  of 
  arsenic 
  at 
  the 
  ground 
  line, 
  

   the 
  soil 
  should 
  be 
  removed, 
  and 
  with 
  it 
  the 
  arsenic 
  which 
  unavoidably 
  

   runs 
  down 
  the 
  trunks 
  in 
  the 
  process 
  of 
  spraying. 
  

  

  VosLER 
  (E. 
  J.). 
  Recent 
  importations 
  of 
  beneficial 
  insects 
  into 
  

   California. 
  — 
  Mthly. 
  Bull. 
  State 
  Comm. 
  Hortic, 
  Sacramento, 
  Cal., 
  ii, 
  

   no. 
  12, 
  Dec. 
  1913, 
  pp. 
  770. 
  [Received 
  22nd 
  April 
  1914]. 
  

  

  The 
  State 
  Insectary 
  received 
  in 
  August 
  from 
  Mr. 
  H. 
  A. 
  Ballou, 
  of 
  

   the 
  Imperial 
  Department 
  of 
  Agriculture 
  for 
  the 
  West 
  Indies, 
  a 
  con- 
  

   signment 
  of 
  parasitised 
  black 
  scale 
  material, 
  from 
  which 
  were 
  reared 
  

   several 
  hundreds 
  of 
  specimens 
  of 
  the 
  predaceous 
  egg 
  parasite, 
  

   Lecaniobius 
  cockerelli, 
  which 
  have 
  been 
  liberated 
  in 
  an 
  infested 
  section, 
  

   and 
  the 
  results 
  are 
  awaited 
  with 
  interest. 
  

  

  Professor 
  S. 
  I. 
  Kuwana 
  sent 
  a 
  consignment 
  of 
  mealy 
  bug 
  parasites 
  

   from 
  the 
  Imperial 
  Agricultural 
  Experiment 
  Station 
  of 
  Japan. 
  Various 
  

   species 
  of 
  hymenopterous 
  parasites 
  have 
  been 
  reared 
  from 
  this 
  material, 
  

   and 
  they 
  are 
  now 
  being 
  bred 
  in 
  quantities 
  for 
  release 
  in 
  infested 
  

   sections. 
  

  

  