﻿577 
  

  

  E. 
  S. 
  II 
  metodo 
  Lotrionte 
  e 
  le 
  Api. 
  [Bees 
  and 
  the 
  Lotrionte 
  control 
  

   of 
  the 
  oHve 
  fly.] 
  — 
  Riv. 
  Agric, 
  Parma, 
  xx, 
  no. 
  19, 
  8th 
  May 
  1914, 
  

   p. 
  297. 
  

  

  In 
  reply 
  to 
  an 
  enquiry 
  by 
  the 
  author. 
  Professor 
  Lotrionte 
  declares 
  

   that 
  careful 
  experiments 
  have 
  proved 
  conclusively 
  that 
  the 
  poison 
  

   mixture 
  used 
  in 
  the 
  " 
  capannette 
  " 
  [see 
  this 
  Review, 
  Ser. 
  A, 
  ii, 
  p. 
  479] 
  

   does 
  not 
  attract 
  bees, 
  even 
  if 
  their 
  hives 
  are 
  only 
  a 
  few 
  yards 
  distant. 
  

  

  PiCAED 
  (F.). 
  Les 
  insectes 
  de 
  la 
  luzerne. 
  [Pests 
  of 
  lucerne.] 
  — 
  

   Pr 
  ogres 
  Agric. 
  Vitic, 
  Montpellier, 
  xxxi, 
  no. 
  18, 
  3rd 
  May 
  1914, 
  

   pp. 
  555-561, 
  1 
  pi. 
  

  

  In 
  the 
  South 
  of 
  France 
  the 
  habits 
  of 
  Hypera 
  (Phytonomus) 
  

   variabilis 
  are 
  the 
  same 
  as 
  in 
  the 
  United 
  States 
  [see 
  this 
  Review, 
  Ser. 
  A, 
  

   ii, 
  p. 
  294]. 
  The 
  injury 
  it 
  does 
  is 
  only 
  inferior 
  to 
  that 
  caused 
  by 
  Cola- 
  

   spidema 
  atrum, 
  which 
  is 
  usually 
  a 
  pest 
  of 
  the 
  second 
  crop, 
  H. 
  variabilis 
  

   being 
  chiefly 
  a 
  pest 
  of 
  the 
  first. 
  The 
  larval 
  stage 
  lasts 
  about 
  50 
  to 
  

   60 
  days. 
  Hibernation 
  is 
  probably 
  due 
  to 
  dehydration 
  rather 
  than 
  to 
  

   cold. 
  Besides 
  lucerne, 
  certain 
  vetches, 
  melilot, 
  etc., 
  are 
  the 
  only 
  

   plants 
  attacked. 
  In 
  France 
  the 
  following 
  enemies 
  keep 
  this 
  weevil 
  

   under 
  control 
  : 
  — 
  The 
  predaceous 
  mite, 
  Pediculoides 
  ventricosus, 
  a 
  

   small 
  Mymarid 
  of 
  the 
  genus 
  Anaphes, 
  several 
  Pteromalids, 
  

   Canidiella 
  curculionis 
  and 
  Itoplectis 
  masculator. 
  Many 
  larvae 
  and 
  

   pupae 
  are 
  also 
  destroyed 
  by 
  a 
  fungus, 
  Entomophthora 
  sphaerosperma. 
  

   The 
  larvae 
  of 
  Hypera 
  nigrirostris 
  and 
  H. 
  punctata 
  attack 
  

   lucerne 
  in 
  the 
  same 
  manner, 
  but 
  to 
  a 
  less 
  degree, 
  owing 
  to 
  their 
  

   smaller 
  numbers. 
  Lucerne 
  should 
  be 
  cut 
  when 
  oviposition 
  is 
  nearly 
  

   completed 
  and 
  sheep 
  grazed 
  on 
  the 
  fields 
  for 
  a 
  fortnight 
  afterwards, 
  

   many 
  adults 
  and 
  larvae 
  being 
  destroyed 
  thereby. 
  Dusting 
  with 
  lime 
  — 
  • 
  

   which 
  dries 
  up 
  the 
  larvae 
  — 
  has 
  sometimes 
  given 
  good 
  results. 
  Lucerne 
  

   should 
  not 
  be 
  grown 
  for 
  more 
  than 
  8 
  consecutive 
  years 
  in 
  much 
  infested 
  

   locahties. 
  In 
  spite 
  of 
  its 
  name, 
  the 
  small 
  weevil, 
  Apion 
  pisi, 
  chiefly 
  

   attacks 
  vetches 
  and 
  lucernes. 
  The 
  larvae 
  live 
  in 
  the 
  pods 
  of 
  the 
  vetches, 
  

   where 
  they 
  destroy 
  the 
  seed, 
  but 
  on 
  lucerne 
  they 
  live 
  in 
  the 
  floral 
  buds 
  

   before 
  the 
  flower 
  is 
  formed, 
  and 
  are 
  therefore 
  only 
  injurious 
  to 
  plants 
  

   raised 
  for 
  seed. 
  Though 
  A. 
  trifolii 
  is 
  often 
  found 
  on 
  lucerne, 
  little 
  

   is 
  known 
  of 
  the 
  cause 
  of 
  its 
  presence 
  there. 
  Colaspidema 
  atrum 
  has 
  

   recently 
  been 
  studied 
  by 
  A. 
  Lecaillon 
  [see 
  this 
  Review, 
  Ser. 
  A, 
  ii, 
  

   p. 
  203]. 
  Hopperdozers 
  are 
  very 
  useful 
  before 
  oviposition 
  takes 
  place, 
  

   and 
  poultry, 
  if 
  allowed 
  to 
  run 
  on 
  the 
  fields, 
  will 
  give 
  further 
  assistance. 
  

   If 
  the 
  first 
  crop 
  is 
  cut 
  early 
  in 
  spring 
  the 
  larvae 
  will 
  perish 
  owing 
  to 
  

   the 
  lack 
  of 
  tender 
  leaves. 
  A 
  useful 
  control 
  method 
  is 
  that 
  of 
  Solanet 
  

   [see 
  this 
  Review, 
  Ser. 
  A, 
  ii, 
  p. 
  58]. 
  The 
  injury 
  caused 
  by 
  Suhcoccinnella 
  

   24:-punctata 
  is 
  often 
  important, 
  but 
  never 
  comparable 
  to 
  that 
  of 
  

   H. 
  variabilis 
  or 
  C. 
  atrun^. 
  Control 
  measures 
  adopted 
  for 
  the 
  latter 
  are 
  

   also 
  applicable 
  here. 
  The 
  butterflies, 
  Colias 
  edusa 
  and 
  C. 
  hyale, 
  are 
  

   common 
  in 
  fields 
  of 
  clover, 
  sainfoin, 
  lucerne, 
  etc. 
  Owing 
  to 
  the 
  green 
  

   colour 
  of 
  the 
  larvae, 
  agriculturists 
  seldom 
  notice 
  them 
  and 
  rarely 
  com- 
  

   plain 
  of 
  the 
  damage 
  which 
  must 
  be 
  done 
  by 
  insects 
  occurring 
  in 
  such 
  

   numbers. 
  So 
  far, 
  only 
  one 
  parasite, 
  Diglochis 
  omnivora, 
  a 
  small 
  Chalcid 
  

   which 
  oviposits 
  in 
  the 
  Colias 
  egg, 
  has 
  been 
  reported. 
  The 
  author 
  has, 
  

   however, 
  found 
  the 
  larva 
  of 
  Amblyteles 
  homocerus 
  in 
  the 
  Colias 
  cater- 
  

   pillar, 
  and 
  the 
  wasp, 
  Eumenes 
  arbustorum, 
  is 
  known 
  to 
  catry 
  off 
  this 
  

   (C76) 
  Wt.P16/57. 
  1,500. 
  10.14. 
  B.&F.Ltd. 
  Gp.11/3. 
  

  

  