﻿553 
  

  

  add 
  the 
  lime 
  solution 
  to 
  that 
  of 
  arsenate 
  and 
  mix 
  ; 
  finally 
  dilute 
  to 
  a 
  

   total 
  bulk 
  of 
  20 
  gals. 
  

  

  Arsenite 
  of 
  lime. 
  This 
  is 
  very 
  popular 
  in 
  America 
  and 
  may 
  be 
  

   prepared 
  as 
  follows 
  : 
  2 
  lb. 
  of 
  white 
  arsenic 
  and 
  8 
  lb. 
  of 
  carbonate 
  of 
  

   soda 
  are 
  boiled 
  for 
  15 
  minutes 
  in 
  \\ 
  gals, 
  of 
  water. 
  This 
  solution 
  

   should 
  be 
  labelled 
  poison. 
  The 
  spray 
  is 
  compounded 
  just 
  before 
  

   apphcation 
  by 
  dissolving 
  2 
  lb. 
  of 
  slaked 
  lime 
  in 
  32 
  gals, 
  of 
  water 
  

   and 
  adding 
  | 
  of 
  a 
  pint 
  of 
  the 
  above 
  solution. 
  An 
  alternative 
  formula 
  

   is 
  : 
  White 
  arsenic, 
  1 
  lb. 
  ; 
  stone-hme, 
  4 
  lb. 
  ; 
  water 
  3^ 
  gals. 
  Boil 
  together 
  

   for 
  a 
  full 
  30 
  minutes. 
  For 
  use 
  this 
  mixture 
  is 
  diluted 
  with 
  160 
  gals, 
  

   water. 
  It 
  is 
  important 
  that 
  the 
  lime 
  be 
  freshly 
  made. 
  

  

  Arsenate 
  of 
  soda. 
  Some 
  vine-growers 
  employ 
  a 
  simple 
  solution 
  

   of 
  arsenate 
  of 
  soda, 
  3|-4 
  oz. 
  in 
  22 
  gals, 
  of 
  water, 
  against 
  Haltica. 
  

   The 
  risk 
  of 
  burns 
  is 
  considerable, 
  even 
  with 
  so 
  small 
  a 
  dose 
  of 
  arsenate, 
  

   but 
  the 
  partisans 
  of 
  this 
  method 
  attribute 
  httle 
  importance 
  to 
  the 
  injury. 
  

  

  Cupric-arsenical 
  sprays. 
  These 
  are 
  easy 
  to 
  prepare, 
  the 
  cupric 
  

   solution 
  containing 
  twice 
  the 
  usual 
  amount 
  of 
  copper 
  sulphate 
  and 
  the 
  

   arsenical 
  solution 
  tAvice 
  the 
  arsenic. 
  To 
  obtain 
  a 
  2 
  per 
  cent 
  copper 
  

   sulphate 
  spray 
  two 
  solutions 
  must 
  be 
  made 
  up 
  : 
  (1) 
  Copper 
  sulphate 
  

   4 
  lb. 
  ; 
  lime 
  or 
  carbonate 
  of 
  soda 
  in 
  sufiicient 
  quantity 
  to 
  neutrahse 
  ; 
  

   water, 
  10 
  gals. 
  (2) 
  Arsenate 
  of 
  soda, 
  6 
  or 
  9 
  oz. 
  ; 
  acetate 
  of 
  lead 
  18 
  or 
  

   27 
  oz. 
  ; 
  water, 
  10 
  gals. 
  These 
  two 
  solutions 
  are 
  then 
  mixed 
  and 
  20 
  

   gals, 
  of 
  correctly 
  compounded 
  spray 
  will 
  result. 
  If 
  either 
  verdigris 
  

   (cupric 
  acetate) 
  or 
  the 
  one-powder 
  commercial 
  cupric 
  sprays 
  are 
  used 
  

   the 
  preparation 
  of 
  the 
  insecticide 
  is 
  further 
  simpHfied, 
  for 
  it 
  is 
  only 
  

   necessary 
  to 
  dilute 
  the 
  above 
  arsenate 
  of 
  soda 
  solution 
  wdth 
  another 
  

   10 
  gals, 
  of 
  water 
  and 
  then 
  add 
  the 
  verdigris 
  or 
  cupric 
  powder, 
  mixing 
  

   thoroughly. 
  

  

  Insect 
  Notes. 
  — 
  Mthly. 
  Bull. 
  State 
  Conimiss. 
  Hortic, 
  Sacramento, 
  Col., 
  

   iii, 
  no. 
  4, 
  April 
  1914, 
  p. 
  189. 
  

  

  E. 
  0. 
  Essig 
  reports 
  that 
  Aspidiotus 
  densiflorae, 
  Bremmer, 
  the 
  

   tanbark 
  oak 
  scale, 
  and 
  Chionaspis 
  qiiercus 
  have 
  both 
  been 
  taken 
  on 
  

   Quercus 
  chrysolepis, 
  and 
  Eriococcus 
  adenostomae, 
  Ehrh., 
  on 
  greasewood 
  

   or 
  chemiso 
  (Adenostoma 
  fascicidatum) 
  . 
  

  

  G. 
  P. 
  Weldon 
  reports 
  Tetranychus 
  mytilaspidis, 
  Riley, 
  and 
  Bryohia 
  

   pratensis, 
  Garm., 
  on 
  apple 
  trees, 
  where 
  they 
  were 
  attacked 
  by 
  the 
  

   ladybird 
  beetle, 
  Psyllobora 
  taedata. 
  He 
  also 
  found 
  Euthrips 
  pyri 
  

   in 
  an 
  orchard 
  in 
  a 
  locahty 
  hitherto 
  free 
  from 
  this 
  pest, 
  and 
  the 
  clover 
  

   aphis. 
  Aphis 
  bakeri, 
  Cowen, 
  was 
  taken 
  on 
  quince 
  foUage. 
  

  

  L. 
  Childs 
  reports 
  great 
  numbers 
  of 
  Chionaspis 
  pinifoliae, 
  the 
  pine- 
  

   leaf 
  scale, 
  on 
  the 
  yellow 
  pine 
  {Pinus 
  ponderosa). 
  The 
  adults 
  in 
  April 
  

   were 
  all 
  dead, 
  but 
  under 
  the 
  shells 
  were 
  found 
  masses 
  of 
  eggs. 
  He 
  

   has 
  also 
  taken 
  Epidiaspis 
  piricola 
  on 
  mountain 
  holly 
  (Heteromeles 
  

   arbutifolia) 
  . 
  E. 
  J. 
  Vosler 
  reports 
  Tipula 
  simplex, 
  Doane, 
  as 
  being 
  

   abimdant 
  in 
  Sacramento 
  . 
  

  

  Smith 
  (H. 
  S.) 
  & 
  Vosler 
  (E. 
  J.). 
  Calliephialtes 
  in 
  California. 
  — 
  Mthly. 
  

  

  Bull. 
  State 
  Commiss. 
  Hortic., 
  Sacramento, 
  Cal., 
  iii, 
  no. 
  5, 
  May 
  

  

  1914, 
  pp. 
  195-211, 
  15 
  figs. 
  

  

  This 
  paper 
  supplements 
  that 
  by 
  Oushman 
  [see 
  this 
  Review, 
  Ser. 
  A. 
  ii, 
  

  

  pp. 
  137-138], 
  which 
  dealt 
  only 
  with 
  Virginia, 
  and 
  records 
  certain 
  

  

  variations 
  in 
  the 
  habits 
  and 
  development 
  of 
  this 
  parasite 
  of 
  Cydia 
  

  

  