﻿194 
  

  

  district 
  of 
  Jeqiiie, 
  where, 
  however, 
  it 
  is 
  in 
  most 
  years 
  not 
  very 
  

   abundant. 
  This 
  is 
  a 
  lepidopterous 
  larva 
  related 
  to 
  the 
  Sphingidae. 
  

   These 
  larvae 
  eat 
  the 
  leaves, 
  especially 
  in 
  March 
  and 
  April, 
  and 
  also 
  

   completely 
  destroy 
  manioc 
  plants 
  (Manihot 
  utilissima). 
  Zehntner 
  

   found 
  at 
  Villa 
  Nova 
  a 
  thrips 
  which 
  in 
  various 
  stages 
  was 
  attached 
  to 
  

   the 
  lower 
  surface 
  of 
  the 
  Manigoba 
  leaves 
  ; 
  as 
  a 
  result 
  of 
  the 
  attack 
  

   the 
  leaves 
  dry 
  up 
  and 
  fall 
  off 
  prematurely. 
  All 
  green 
  parts 
  of 
  the 
  tree 
  

   may 
  be 
  attacked 
  and 
  young 
  trees 
  up 
  to 
  two 
  years 
  old 
  suffer 
  most. 
  

   A 
  spray 
  of 
  1 
  per 
  cent, 
  solution 
  of 
  nicotin 
  or 
  petroleum 
  emulsion 
  is 
  

   useful 
  against 
  them, 
  and 
  it 
  is 
  sufficient 
  to 
  spray 
  the 
  young 
  trees 
  only. 
  

   Ants 
  are 
  the 
  most 
  formidable 
  pests 
  of 
  Manihot. 
  Locusts, 
  amongst 
  them 
  

   a 
  species 
  of 
  the 
  genus 
  Tropidacris, 
  also 
  eat 
  the 
  leaves. 
  Lesne 
  has 
  

   reported 
  damage 
  to 
  M. 
  glaziovii 
  in 
  the 
  district 
  of 
  Baturite 
  by 
  a 
  

   Curculionid, 
  Coelosternus 
  rugicollis, 
  Boh., 
  which 
  in 
  the 
  larval 
  stage 
  

   bores 
  short 
  galleries 
  into 
  the 
  end 
  of 
  the 
  dead 
  shoots 
  or 
  dead 
  wood 
  on 
  

   the 
  trunk. 
  A 
  Scolytid, 
  Xyleborus 
  confusus, 
  utilises 
  the 
  galleries 
  of 
  

   Coelosternus 
  and 
  prolongs 
  them, 
  invading 
  the 
  whole 
  tree. 
  The 
  best 
  

   remedy 
  appears 
  to 
  be 
  to 
  examine 
  the 
  trees 
  and 
  cut 
  off 
  all 
  dead 
  

   branches 
  and 
  see 
  that 
  the 
  wound 
  cicatrises 
  properly. 
  

  

  PoiRiER 
  (L.). 
  Reunion 
  viticole 
  ^ 
  Lyon. 
  [Meeting 
  of 
  vine-growers 
  in 
  

   Lyons.] 
  — 
  Rev. 
  Viticulture, 
  Paris, 
  xli, 
  1st 
  Jan. 
  1914, 
  pp. 
  17-23. 
  

  

  M. 
  Deville, 
  Director 
  of 
  Agriculture 
  in 
  the 
  Department 
  of 
  the 
  Rhone, 
  

   recommends 
  lead 
  arsenate 
  against 
  the 
  vine 
  moths, 
  Clysia 
  amhiguella 
  

   and 
  Polychrosis 
  botrana, 
  and 
  the 
  flea-beetle, 
  Haltica 
  ampelophaga, 
  Guer. 
  

   Nicotin 
  may 
  be 
  used 
  against 
  the 
  second 
  generation 
  of 
  Clysia 
  and 
  

   Polychrosis. 
  M. 
  Jouvet, 
  Director 
  of 
  the 
  Cote-d'Or, 
  stated 
  that 
  Haltica 
  

   was 
  reported 
  at 
  Vosne 
  and 
  at 
  Volnay 
  in 
  the 
  spring 
  of 
  1913, 
  but 
  was 
  

   controlled 
  by 
  non-acid 
  sprays 
  mixed 
  with 
  arsenates, 
  which 
  are 
  also 
  

   effective 
  against 
  mildew. 
  M. 
  Gillin, 
  Director 
  of 
  the 
  Puy-de-D6me, 
  

   said 
  that 
  Rhynchites 
  betulae, 
  L., 
  had 
  been 
  abundant 
  and 
  the 
  collection 
  

   of 
  its 
  cocoons 
  was 
  effected 
  in 
  spite 
  of 
  the 
  expense. 
  Clysia 
  had 
  been 
  

   methodically 
  combated 
  with 
  nicotin, 
  arsenic, 
  or 
  copper-nicotin. 
  

   Bait-traps 
  had 
  been 
  employed 
  against 
  Polychrosis. 
  Efficient 
  bird 
  

   protection 
  is 
  asked 
  for. 
  

  

  Larue 
  (P.). 
  Tableau 
  indicateur 
  des 
  traitenients 
  insecticides. 
  [An 
  

   indicator 
  for 
  the 
  use 
  of 
  insecticides.] 
  — 
  Rev. 
  Vitic, 
  Paris, 
  xli, 
  

   1st 
  Jan. 
  1914, 
  pp. 
  23-24, 
  1 
  fig. 
  

  

  The 
  author 
  points 
  out 
  that 
  when 
  engrossed 
  in 
  combating 
  mildew 
  

   the 
  vine-grower 
  often 
  forgets 
  to 
  apply 
  insecticides 
  at 
  the 
  proper 
  time, 
  

   and 
  a 
  table 
  like 
  the 
  one 
  dealing 
  with 
  Clysia 
  ambiguella 
  (Cochylis), 
  

   prepared 
  by 
  M. 
  L. 
  Fulmek 
  and 
  published 
  by 
  the 
  Vienna 
  Station 
  of 
  

   Plant 
  Pathology, 
  would 
  be 
  very 
  useful. 
  This 
  table 
  measures 
  44 
  

   inches 
  by 
  70 
  inches 
  and 
  on 
  it 
  a 
  disk 
  of 
  28 
  inches 
  diameter 
  is 
  printed 
  

   in 
  colours 
  with 
  instructions 
  in 
  bold 
  type 
  beneath 
  it. 
  The 
  disk 
  is 
  

   divided 
  into 
  12 
  monthly 
  sectors 
  in 
  which 
  the 
  various 
  stages 
  of 
  the 
  pest 
  

   are 
  depicted, 
  so 
  that 
  a 
  glance 
  at 
  the 
  illustration, 
  followed 
  by 
  reference 
  

   to 
  the 
  instructions 
  below, 
  gives 
  the 
  required 
  information. 
  

  

  