﻿328 
  

  

  may 
  be 
  considered 
  as 
  accomplished. 
  Should 
  further 
  injury 
  be 
  noticed, 
  

   it 
  is 
  due 
  to 
  beetles 
  from 
  neighbouring 
  timber, 
  and 
  therefore 
  it 
  is 
  

   advisable 
  to 
  continue 
  the 
  edge-protection 
  mentioned 
  above 
  for 
  some 
  

   time 
  longer. 
  Where 
  beetles 
  are 
  to 
  be 
  combated 
  on 
  clearings 
  which 
  

   have 
  been 
  untouched 
  for 
  two 
  years, 
  the 
  same 
  method 
  is 
  used 
  as 
  for 
  

   protecting 
  " 
  'plantation 
  in 
  the 
  second 
  year 
  of 
  its 
  growth. 
  For 
  instance, 
  

   after 
  such 
  plantation 
  has 
  had 
  edge-protection 
  during 
  the 
  spring 
  and 
  

   summer 
  of 
  1912 
  and 
  1913, 
  it 
  must 
  be 
  provided 
  with 
  four 
  traps 
  per 
  

   2J 
  acres 
  to 
  start 
  with 
  and 
  one 
  or 
  two 
  extra 
  traps 
  must 
  then 
  be 
  added 
  

   in 
  July 
  or 
  August. 
  In 
  this 
  case, 
  control 
  may 
  be 
  considered 
  complete 
  

   when 
  the 
  traps 
  are 
  cleaned 
  in 
  the 
  following 
  spring. 
  A 
  great 
  advantage 
  

   of 
  delaying 
  replanting 
  until 
  two 
  summers 
  have 
  passed 
  is 
  that 
  such 
  

   replanting 
  escapes 
  the 
  period 
  when 
  the 
  beetles 
  are 
  most 
  abundant. 
  

   Where 
  replanting 
  is 
  carried 
  out 
  after 
  one 
  summer 
  only, 
  great 
  care 
  is 
  

   necessary 
  for 
  the 
  properly-timed 
  construction 
  of 
  the 
  supplementary 
  

   traps, 
  or 
  damage 
  will 
  be 
  done 
  to 
  the 
  young 
  trees. 
  

  

  Where 
  the 
  aim 
  is 
  to 
  destroy 
  Hylobius 
  abietis 
  without 
  any 
  thought 
  of 
  

   protecting 
  plantations, 
  the 
  best 
  time 
  for 
  setting 
  the 
  traps 
  is 
  when 
  the 
  

   pest 
  is 
  most 
  abundant. 
  If 
  clearing 
  is 
  effected 
  in 
  winter, 
  then 
  the 
  

   following 
  months 
  of 
  July 
  and 
  August 
  are 
  best 
  suited. 
  If 
  effected, 
  say, 
  

   in 
  August 
  1914, 
  then 
  the 
  favourable 
  time 
  w^ould 
  be 
  in 
  April 
  1916. 
  

   The 
  time 
  at 
  which 
  this 
  system 
  of 
  trapping 
  should 
  begin 
  is 
  strictly 
  

   regulated 
  by 
  the 
  data 
  given 
  above 
  as 
  to 
  the 
  life-cycle 
  of 
  the 
  w^eevil. 
  

   The 
  system 
  is 
  simpler 
  than 
  it 
  appears 
  at 
  first 
  sight 
  and 
  the 
  author 
  

   publishes 
  it 
  with 
  the 
  conviction 
  that 
  many 
  a 
  pine 
  and 
  fir 
  plantation 
  

   will 
  be 
  saved 
  by 
  means 
  of 
  it. 
  

  

  Negri 
  (U.). 
  II 
  Rinchite 
  del 
  Mandorlo. 
  [The 
  almond 
  Rhynchites.] 
  

   — 
  Boll. 
  Cait. 
  Amh. 
  d^Agric, 
  Brindisi, 
  viii, 
  no. 
  2, 
  Feb. 
  1914, 
  

   pp. 
  12-13. 
  

  

  The 
  author 
  has 
  observed 
  the 
  first 
  two 
  generations 
  of 
  the 
  Rhynchites 
  

   which 
  infests 
  the 
  almond, 
  a 
  tree 
  of 
  great 
  economic 
  importance 
  in 
  

   Puglia 
  (where 
  the 
  pest 
  is 
  called 
  cam 
  fa 
  or 
  campio) 
  and 
  in 
  Sicily. 
  About 
  

   the 
  end 
  of 
  February 
  or 
  the 
  beginning 
  of 
  March, 
  the 
  females 
  pierce 
  the 
  

   buds 
  and 
  deposit 
  in 
  each, 
  one 
  egg 
  from 
  which 
  a 
  yellow-red 
  larva 
  emerges. 
  

   This 
  feeds 
  in 
  the 
  bud, 
  working 
  in 
  a 
  circle 
  and 
  covering 
  the 
  pistils 
  with 
  

   a 
  silky 
  froth 
  which 
  prevents 
  the 
  bud 
  from 
  opening. 
  The 
  larva 
  com- 
  

   pletes 
  its 
  cycle 
  within 
  the 
  flower 
  during 
  the 
  period 
  of 
  pollination, 
  which 
  

   varies 
  from 
  15 
  to 
  20 
  days. 
  It 
  appears 
  as 
  a 
  perfect 
  insect 
  just 
  about 
  

   the 
  time 
  that 
  the 
  fruit 
  acquires 
  its 
  shell 
  and 
  pierces 
  the 
  tiny 
  fruit 
  with 
  

   its 
  proboscis 
  in 
  order 
  to 
  deposit 
  the 
  eggs 
  for 
  the 
  second 
  generation. 
  

   This 
  injury 
  causes 
  the 
  fruit 
  to 
  fall 
  and 
  where 
  infestation 
  'is 
  severe 
  

   the 
  crop 
  is 
  lost 
  from 
  that 
  moment. 
  The 
  author 
  has 
  observed 
  that 
  

   when 
  two 
  larvae 
  meet 
  the 
  stronger 
  devours 
  the 
  weaker. 
  

  

  FucHS 
  ( 
  — 
  ). 
  Ueberblick 
  iiber 
  die 
  forstliche 
  Entomologie. 
  [A 
  brief 
  

   survey 
  of 
  Forest 
  Entomology.] 
  — 
  Entom. 
  Zeitschr., 
  Frankfurt 
  a. 
  M., 
  

   xxvii 
  ; 
  nos. 
  24-26, 
  28-30, 
  32-36, 
  39-42, 
  44-45 
  ; 
  13th 
  Sept. 
  1913— 
  

   7th 
  Feb. 
  1914. 
  

  

  The 
  author 
  deals 
  with 
  all 
  the 
  forest 
  insects 
  of 
  Germany, 
  giving 
  a 
  

   full 
  account 
  of 
  those 
  of 
  economic 
  importance 
  and 
  a 
  cursory 
  notice 
  of 
  

   others. 
  The 
  subject 
  matter 
  is 
  arranged 
  on 
  a 
  systematic 
  basis, 
  in 
  order 
  

  

  