﻿597 
  

  

  Such 
  stocks 
  are 
  best 
  destroyed, 
  but 
  if 
  only 
  slightly 
  attacked, 
  carbon 
  

   bisulphide 
  may 
  be 
  injected 
  into 
  the 
  galleries, 
  which 
  should 
  then 
  be 
  

   sealed. 
  This 
  will 
  confer 
  temporary, 
  but 
  not 
  lasting 
  protection. 
  Pre- 
  

   ventive 
  measures 
  are 
  best 
  and 
  a 
  method 
  of 
  pruning 
  which 
  will 
  reduce 
  

   the 
  surfaces 
  cicatrised 
  will 
  reduce 
  the 
  amount 
  of 
  dead 
  wood. 
  After 
  

   discussing 
  the 
  best 
  methods 
  of 
  pruning 
  the 
  author 
  expresses 
  his 
  

   belief 
  that 
  the 
  only 
  real 
  protection 
  against 
  termites 
  consists 
  in 
  main- 
  

   taining 
  the 
  vines 
  in 
  a 
  healthy 
  condition. 
  Cuts 
  may 
  be 
  painted 
  over 
  

   with 
  coal 
  tar 
  or 
  other 
  suitable 
  substances. 
  

  

  KuTHERFORD 
  (A.). 
  InsBcts 
  Injurious 
  to 
  Camphor. 
  — 
  Trop. 
  Agric, 
  

   Peradeniya, 
  xHii, 
  no. 
  6, 
  June 
  1914, 
  pp. 
  463-468. 
  

  

  In 
  December 
  1913, 
  the 
  author 
  observed 
  that 
  many 
  buds 
  and 
  leaves 
  

   of 
  camphor 
  bushes 
  (Cinnamomum 
  camphor 
  a) 
  were 
  blackened 
  and 
  dead, 
  

   suggesting 
  damage 
  by 
  a 
  Heteropterous 
  or 
  Homopterous 
  insect 
  rather 
  

   than 
  by 
  the 
  thrips 
  which 
  the 
  author 
  found 
  in 
  the 
  bud 
  and 
  inside 
  cracks 
  

   on 
  the 
  twigs, 
  and 
  which 
  he 
  beheves 
  to 
  be 
  Cryptothrips 
  floridensis, 
  

   described 
  by 
  Watson 
  as 
  injuring 
  camphor 
  in 
  Florida 
  [see 
  this 
  RevieWy 
  

   Ser. 
  A, 
  i, 
  p. 
  512]. 
  The 
  leaf-miner 
  of 
  camphor 
  {Acrocercops 
  sp.) 
  which 
  

   has 
  also 
  been 
  reared 
  from 
  Blumea 
  balsamifera, 
  Trewia 
  nudiflora, 
  

   Acyranthes 
  aspera, 
  Terminalia 
  catappa 
  and 
  BauTiinia 
  sp., 
  mines 
  under 
  

   the 
  upper 
  epidermis 
  of 
  the 
  young 
  leaves 
  and 
  causes 
  a 
  large 
  blotch. 
  

   Its 
  parasites 
  seem 
  to 
  keep 
  this 
  moth 
  well 
  under 
  control, 
  but 
  in 
  the 
  case 
  

   of 
  a 
  severe 
  attack 
  spraying 
  with 
  a 
  tobacco 
  decoction 
  might 
  

   be 
  given 
  a 
  trial. 
  The 
  larvae 
  are 
  subject 
  to 
  the 
  attacks 
  of 
  a 
  smaU 
  

   Chalcid, 
  and 
  a 
  species 
  of 
  Braconid 
  has 
  also 
  been 
  reared 
  from 
  leaves 
  

   infested 
  by 
  Acrocercops. 
  

  

  Clania 
  variegata, 
  Snell., 
  has 
  been 
  recorded 
  from 
  tea 
  and 
  Antigonum, 
  

   as 
  well 
  as 
  from 
  camphor, 
  and 
  the 
  best 
  way 
  to 
  deal 
  with 
  this 
  bagworm 
  

   is 
  to 
  collect 
  and 
  destroy 
  the 
  caterpillars. 
  The 
  cases 
  of 
  what 
  is 
  probably 
  

   Amatissa 
  consorta, 
  and 
  two 
  species 
  of 
  what 
  were 
  believed 
  to 
  be 
  Pyralid 
  

   larvae, 
  have 
  been 
  observed 
  on 
  camphor. 
  Other 
  insects 
  attacking 
  

   camphor 
  are 
  the 
  beetles, 
  Xyleborus 
  compactus, 
  Eichh., 
  X. 
  arquatus, 
  

   Samps., 
  Xylopertha 
  sp., 
  Lepidiota 
  pinguis; 
  the 
  Lepidoptera, 
  Suana 
  

   concolor, 
  Papilio 
  lankeswara, 
  P. 
  clytia 
  and 
  Attacus 
  atlas 
  ; 
  two 
  Acarids, 
  

   Tetranychus 
  bioculatus 
  and 
  Brevipalpus 
  obovatus 
  ; 
  a 
  bug, 
  Coptosoma 
  

   siamica; 
  a 
  species 
  of 
  Aspidiotus, 
  probably 
  A. 
  rapax 
  (camelUae), 
  and 
  

   a 
  twig-girdler, 
  which 
  often 
  causes 
  the 
  young 
  twigs 
  to 
  wilt 
  and 
  

   fall 
  over. 
  

  

  CoLLiNGE 
  (W. 
  E.). 
  The 
  Economic 
  Importance 
  of 
  Woodlice. 
  — 
  Jl. 
  Bd. 
  

   Agric, 
  London, 
  xxi, 
  no. 
  3, 
  June 
  1914, 
  pp. 
  206-212, 
  1 
  plate. 
  

  

  The 
  author 
  says 
  that 
  such 
  seasons 
  as 
  those 
  of 
  1912 
  and 
  1913 
  have 
  

   been 
  very 
  favourable 
  to 
  the 
  rapid 
  increase 
  of 
  woodlice, 
  and 
  consequently 
  

   complaints 
  of 
  the 
  damage 
  they 
  have 
  done 
  have 
  been 
  more 
  numerous 
  

   than 
  for 
  many 
  years 
  past. 
  Of 
  the 
  thirty-five 
  species 
  found 
  in 
  the 
  

   British 
  Isles 
  not 
  more 
  than 
  nine 
  or 
  ten 
  are 
  sufficiently 
  common 
  to 
  be 
  

   of 
  any 
  economic 
  importance. 
  

  

  Trichoniscus 
  roseus, 
  Koch, 
  frequently 
  does 
  considerable 
  damage 
  in 
  

   greenhouses 
  and 
  conservatories, 
  attacking, 
  amongst 
  other 
  plants, 
  ferns 
  

  

  