﻿448 
  

  

  of 
  hot 
  water 
  and 
  mixed 
  with 
  the 
  tobacco 
  solution 
  ; 
  the 
  whole 
  being 
  

   diluted 
  with 
  100 
  gallons 
  of 
  water. 
  A 
  mixture 
  of 
  1 
  lb. 
  of 
  sodium 
  

   arsenate 
  with 
  10 
  lb. 
  of 
  sugar 
  or 
  molasses 
  and 
  dissolved 
  in 
  100 
  gallons 
  

   of 
  water, 
  even 
  in 
  dilute 
  solutions, 
  tends 
  to 
  burn 
  the 
  foliage 
  of 
  

   the 
  plant 
  ; 
  but 
  prepared 
  as 
  above 
  may 
  be 
  used 
  against 
  all 
  insects 
  

   that 
  devour 
  the 
  leaves. 
  Schweinfurt 
  green 
  mixed 
  with 
  equal 
  weights 
  

   of 
  Kme 
  and 
  water 
  is 
  a 
  powerful 
  poison 
  which 
  does 
  not 
  injure 
  the 
  plant 
  ; 
  

   or 
  it 
  may 
  be 
  mixed 
  dry 
  with 
  20 
  times 
  its 
  own 
  weight 
  of 
  meal, 
  Hme, 
  or 
  

   gypsum 
  and 
  powdered 
  on 
  the 
  plants. 
  Poisoned 
  bait 
  may 
  be 
  prepared 
  

   as 
  follows 
  : 
  (1) 
  meal 
  is 
  mixed 
  with 
  1 
  per 
  cent. 
  Schweinfurt 
  green 
  and 
  

   damped 
  with 
  water 
  ; 
  (2) 
  for 
  use 
  against 
  terrestrial 
  larvae, 
  1 
  lb. 
  of 
  

   sodium 
  arsenate 
  is 
  dissolved 
  with 
  6 
  lb. 
  of 
  sugar 
  in 
  12 
  gallons 
  of 
  water 
  ; 
  

   this 
  solution 
  is 
  used 
  to 
  damp 
  chopped 
  grass, 
  which 
  is 
  strewn 
  round 
  the 
  

   plant 
  ; 
  (3) 
  1 
  part 
  Schweinfurt 
  green 
  is 
  mixed 
  with 
  2 
  parts 
  of 
  salt 
  or 
  

   with 
  4-5 
  parts 
  of 
  sugar 
  and 
  enough 
  water 
  to 
  make 
  a 
  thin 
  pulp. 
  

  

  Heikertinger 
  (F.). 
  Zoologischen 
  Fragen 
  im 
  Pflanzenschutz. 
  [Zoo- 
  

   logical 
  questions 
  in 
  the 
  protection 
  of 
  plants.] 
  — 
  Centralb. 
  Bakt. 
  

   Parasit. 
  u. 
  InfeJctionskrank., 
  Jena,x\, 
  no. 
  11-13, 
  2nd 
  March 
  1914, 
  

   pp. 
  284-299. 
  

  

  The 
  zoological 
  questions 
  referred 
  to 
  in 
  the 
  title 
  are 
  confined 
  to 
  those 
  

   of 
  nomenclature. 
  The 
  author 
  urges 
  the 
  importance 
  of 
  recording 
  insects 
  

   under 
  the 
  most 
  recently 
  accepted 
  name. 
  The 
  latter 
  part 
  of 
  the 
  paper 
  

   deals 
  with 
  a 
  general 
  classification 
  of 
  phytophagous 
  insects. 
  

  

  Lesne 
  (P.). 
  Insectes 
  nuisibles 
  aux 
  arbres 
  fruitiers. 
  [Insects 
  injurious 
  

   to 
  fruit 
  trees.] 
  — 
  Jl. 
  d^Agric. 
  Pratique, 
  Paris, 
  xxvii, 
  no. 
  10, 
  5th 
  

   March 
  1914, 
  pp. 
  307-311, 
  1 
  pi. 
  

  

  Oxytkyrea 
  funesta, 
  Poda, 
  {Cetonia 
  stictica, 
  L.) 
  frequently 
  occurs 
  on 
  

   roses 
  and 
  fruit-blossoms, 
  especially 
  those 
  of 
  pears, 
  which 
  it 
  attacks 
  as 
  

   soon 
  as 
  they 
  open, 
  devouring 
  the 
  stamens, 
  and 
  is 
  sometimes 
  a 
  serious 
  

   pest 
  in 
  the 
  South 
  of 
  France. 
  The 
  larva 
  is 
  a 
  small, 
  white, 
  sHghtly 
  

   hairy 
  grub, 
  which 
  lives 
  in 
  leaf-mould 
  and 
  sometimes 
  abounds 
  in 
  hot 
  

   beds 
  where 
  it 
  can 
  be 
  controlled 
  with 
  gelatine 
  capsules 
  of 
  carbon 
  

   bisulphide. 
  Heaps 
  of 
  dead 
  leaves 
  near 
  the 
  orchard 
  may 
  also 
  become 
  

   centres 
  of 
  infection. 
  The 
  imagines 
  may 
  be 
  shaken 
  oS 
  the 
  trees 
  on 
  to 
  a 
  

   sheet, 
  at 
  a 
  cool 
  time 
  of 
  day. 
  Epicometis 
  hirta, 
  Poda, 
  is 
  a 
  nearly 
  allied 
  

   species, 
  but 
  slightly 
  larger 
  and 
  covered 
  with 
  erect 
  hairs, 
  which 
  sometimes 
  

   does 
  similar 
  damage. 
  Anthonomus 
  pomorym, 
  L., 
  the 
  small 
  weevil 
  pest 
  

   of 
  apple 
  buds, 
  is 
  particularly 
  feared 
  in 
  Normandy 
  and 
  Brittany, 
  where 
  it 
  

   appears 
  in 
  March 
  or 
  April, 
  and 
  oviposits 
  in 
  the 
  flower 
  buds 
  of 
  the 
  

   apple 
  and 
  hawthorn. 
  The 
  female 
  lays 
  about 
  30 
  eggs, 
  boring 
  with 
  her 
  

   proboscis 
  into 
  the 
  ovary 
  of 
  each 
  bud 
  she 
  visits, 
  but 
  not 
  ovipositing 
  in 
  

   every 
  case. 
  The 
  egg 
  is 
  laid 
  on 
  the 
  edge 
  of 
  the 
  bore-hole 
  and 
  pushed 
  

   in 
  with 
  the 
  proboscis. 
  This 
  requires 
  about 
  three-quarters 
  of 
  an 
  hour, 
  

   and 
  a 
  rather 
  long 
  time 
  is 
  consequently 
  necessary 
  for 
  disposing 
  of 
  all 
  

   the 
  eggs. 
  These 
  hatch 
  in 
  6 
  or 
  8 
  days 
  and 
  the 
  larva, 
  which 
  

   is 
  white 
  and 
  footless, 
  feeds 
  on 
  the 
  stamens, 
  pistil 
  and 
  ovary, 
  

   and 
  is 
  full 
  grown 
  in 
  15 
  to 
  20 
  days. 
  The 
  imago 
  emerges 
  in 
  8 
  

   days 
  (about 
  the 
  end 
  of 
  May 
  or 
  the 
  beginning 
  of 
  June), 
  feeds 
  on 
  the 
  

   parenchyma 
  of 
  the 
  leaves, 
  and 
  hibernates 
  amongst 
  dead 
  leaves, 
  moss, 
  

   stones, 
  cracks 
  in 
  the 
  bark, 
  etc. 
  Cleaning 
  the 
  tree-trunks 
  and 
  large 
  

  

  