﻿672 
  

  

  does 
  not 
  seem 
  to 
  make 
  headway, 
  probably 
  owing 
  to 
  the 
  moist 
  atmos- 
  

   pheric 
  conditions 
  assisting 
  the 
  spread 
  of 
  the 
  red-headed 
  fungus, 
  

   Sphaerostilbe 
  coccophila. 
  The 
  fruit 
  fly 
  attacking 
  the 
  testa 
  of 
  the 
  kola 
  

   fruits, 
  Ceratitis 
  colae, 
  Silv., 
  sometimes 
  damages 
  as 
  much 
  as 
  60 
  per 
  cent, 
  

   of 
  the 
  crop. 
  It 
  is 
  parasitised 
  by 
  the 
  Chalcid, 
  Tetrastichus 
  giffardii, 
  

   Silv. 
  Kola 
  has 
  also 
  been 
  attacked 
  by 
  a 
  species 
  of 
  Psylla, 
  perhaps 
  

   identical 
  with 
  that 
  which 
  is 
  found 
  on 
  cacao. 
  The 
  branches 
  of 
  the 
  

   trees 
  are 
  often 
  tunnelled 
  by 
  the 
  larvae 
  of 
  a 
  Cerambycid 
  beetle, 
  P^05- 
  

   phorus 
  virescens, 
  Oliv. 
  These 
  were 
  readily 
  controlled 
  by 
  cutting 
  

   away 
  badly 
  infested 
  branches 
  or 
  by 
  destroying 
  the 
  borer 
  in 
  situ. 
  

  

  The 
  larva 
  of 
  a 
  small 
  ChrysomeUd 
  beetle 
  has 
  done 
  considerable 
  

   damage 
  to 
  the 
  young 
  shoots 
  of 
  orange 
  trees. 
  The 
  adult 
  feeds 
  upon 
  

   the 
  leaves 
  and 
  the 
  larvae 
  bore 
  into 
  the 
  stems. 
  

  

  Cucumbers, 
  melons 
  and 
  vegetable 
  marrows 
  are 
  greatly 
  damaged 
  

   by 
  flies 
  of 
  the 
  genus 
  Dacus, 
  D. 
  bipartitus 
  being 
  the 
  species 
  concerned 
  

   in 
  Aburi. 
  The 
  only 
  recorded 
  host 
  plant 
  appears 
  to 
  be 
  a 
  wild 
  cucurbit, 
  

   Momordica 
  sp., 
  in 
  which 
  it 
  does 
  not 
  make 
  much 
  headway. 
  The 
  leaves 
  

   should 
  be 
  sprayed 
  with 
  a 
  sweet 
  arsenical 
  and 
  the 
  developing 
  fruits 
  

   protected 
  with 
  paper 
  or 
  musHn 
  bags. 
  

  

  Coffee 
  is 
  said 
  to 
  have 
  suffered 
  from 
  the 
  attacks 
  of 
  two 
  Bostrychids 
  

   and 
  one 
  Cerambycid, 
  and 
  sweet 
  potatoes 
  at 
  Aburi 
  are 
  seriously 
  attacked 
  

   by 
  a 
  weevil, 
  Cylas 
  formicarius 
  . 
  

  

  KvARATzcHELiA 
  (T. 
  K.). 
  floxoflHafl 
  KyjiTypa 
  0ptX0BT>. 
  [The 
  profit- 
  

   able 
  cultivation 
  of 
  nuts.] 
  — 
  No. 
  8 
  of 
  " 
  Garden 
  Library 
  " 
  supplement 
  

   to 
  Progressive 
  Fruit-Growing 
  and 
  Market-Gardening, 
  Petrograd, 
  

   1914, 
  24 
  pp. 
  

  

  In 
  this 
  booklet, 
  which 
  gives 
  general 
  information 
  on 
  the 
  cultivation 
  

   of 
  nuts, 
  the 
  insect 
  pests, 
  especially 
  those 
  injurious 
  to 
  species 
  of 
  Corylus 
  

   are 
  dealt 
  with. 
  Important 
  injury 
  is 
  done 
  by 
  Balaninus 
  nucum, 
  the 
  

   females 
  of 
  which 
  bore 
  through 
  the 
  still 
  soft 
  shell 
  of 
  the 
  nuts 
  and 
  deposit 
  

   one 
  egg 
  in 
  each. 
  The 
  date 
  of 
  oviposition 
  depends 
  on 
  the 
  locahty, 
  but 
  

   is 
  generally 
  during 
  May 
  and 
  June. 
  The 
  larvae 
  feed 
  on 
  the 
  kernel 
  and 
  

   in 
  August 
  they 
  bore 
  through 
  the 
  hard 
  sheU, 
  and 
  pass 
  into 
  the 
  earth, 
  

   where 
  they 
  pupate 
  and 
  hibernate, 
  producing 
  the 
  next 
  generation 
  in 
  

   the 
  following 
  May. 
  Remedies 
  include 
  shaking 
  down 
  the 
  weevils 
  on 
  

   to 
  cloths 
  spread 
  under 
  the 
  trees 
  and 
  destroying 
  the 
  pupae 
  by 
  digging. 
  

   The 
  larvae 
  of 
  Oberea 
  linearis 
  attack 
  the 
  shoots 
  and 
  buds 
  ; 
  besides 
  

   shaking 
  down 
  the 
  beetles, 
  the 
  damaged 
  shoots 
  and 
  buds 
  should 
  be 
  

   cut 
  off 
  and 
  destroyed 
  during 
  the 
  first 
  half 
  of 
  summer. 
  The 
  larvae 
  

   of 
  Apoderus 
  {Attelabus) 
  coryli 
  five 
  in 
  the 
  roUed-up 
  leaves. 
  The 
  

   leaves 
  and 
  shoots 
  of 
  Corylus 
  are 
  also 
  damaged 
  by 
  the 
  beetles, 
  

   Haplocnemia 
  nebulosa, 
  Anobium 
  brunneum, 
  PhyllopertJia 
  horticola 
  

   and 
  Cryptocephalus 
  coryli, 
  and 
  by 
  the 
  moths, 
  Aegeria 
  {Sesia) 
  tipuli- 
  

   formis, 
  Cnephasia 
  minorana, 
  and 
  Cydia 
  {Carpocapsa) 
  amplana. 
  The 
  

   caterpillars 
  of 
  the 
  last-named 
  five 
  inside 
  the 
  nuts, 
  doing 
  great 
  damage. 
  

   The 
  male 
  flowers 
  are 
  damaged 
  by 
  the 
  caterpillars 
  of 
  Ancylis 
  mitter- 
  

   bacheriana 
  and 
  by 
  the 
  larvae 
  of 
  Contarinia 
  (Cecidomyia) 
  corylina. 
  

   The 
  buds 
  are 
  also 
  attacked 
  in 
  autumn 
  by 
  Eriophyes 
  coryli, 
  causing 
  

   them 
  to 
  swell 
  ; 
  these 
  mites 
  winter 
  inside 
  the 
  damaged 
  buds. 
  The 
  

   walnut, 
  Juglans 
  regia, 
  L., 
  is 
  attacked 
  by 
  a 
  species 
  of 
  Cydia. 
  

  

  