﻿244 
  

  

  of 
  tlie 
  mealy 
  bug 
  are 
  found 
  in 
  the 
  Orient, 
  but 
  the}' 
  are 
  of 
  minor 
  import- 
  

   ance. 
  In 
  the 
  vicinity 
  of 
  Manila 
  a 
  number 
  of 
  parasites 
  of 
  Saissetia 
  

   hemisphaerica 
  were 
  obtained 
  in 
  the 
  hope 
  that 
  they 
  would 
  attack 
  the 
  

   black 
  scale 
  in 
  California. 
  This 
  they 
  seem 
  to 
  do 
  in 
  the 
  insectary, 
  but 
  

   they 
  have 
  not 
  been 
  tried 
  in 
  the 
  field. 
  One 
  Pteromalid 
  attacks 
  the 
  

   eggs 
  of 
  the 
  scale. 
  Two 
  other 
  Encyrtids 
  attack 
  the 
  young 
  scale 
  before 
  

   eggs 
  are 
  laid. 
  Tentative 
  arrangements 
  have 
  been 
  entered 
  into 
  with 
  

   the 
  Imperial 
  Department 
  of 
  Agriculture 
  of 
  the 
  Japanese 
  Government 
  

   and 
  the 
  Bureau 
  of 
  Agriculture 
  of 
  the 
  Government 
  of 
  the 
  Philippines 
  

   for 
  co-operation 
  with 
  the 
  State 
  Commission 
  of 
  Horticulture 
  at 
  Sacra- 
  

   mento 
  in 
  the 
  attempt 
  to 
  introduce 
  the 
  natural 
  enemies 
  of 
  Californian 
  

   pests. 
  

  

  Cook 
  (A. 
  J.). 
  The 
  White 
  Grubs.— 
  M?%. 
  Bull. 
  State 
  Comm, 
  Hortic, 
  

   Sacramento, 
  Col., 
  iii, 
  no. 
  1, 
  Jan. 
  1914, 
  pp. 
  29-30, 
  1 
  fig. 
  

  

  White 
  grubs 
  (the 
  larvae 
  of 
  various 
  Scarabaeid 
  beetles) 
  feed 
  on 
  roots 
  

   of 
  grasses 
  and 
  other 
  plants. 
  The 
  rose 
  chafer, 
  Macrodactyliis 
  sub- 
  

   spinosus, 
  of 
  the 
  Eastern 
  States 
  causes 
  much 
  damage. 
  The 
  various 
  

   May 
  beetles 
  are 
  also 
  serious 
  pests, 
  devastating 
  lawns 
  and 
  meadows 
  

   and 
  working 
  havoc 
  in 
  strawberry 
  beds 
  and 
  among 
  vegetables. 
  The 
  

   common 
  one 
  in 
  Cahfornia 
  is 
  Ligyrus 
  gibbosus, 
  and 
  in 
  Michigan 
  Lach- 
  

   nosterna 
  fiisca. 
  As 
  a 
  control 
  measure, 
  if 
  the 
  meadow 
  is 
  seriously 
  

   attacked, 
  it 
  should 
  be 
  ploughed 
  up 
  and 
  some 
  other 
  crop 
  grown. 
  A 
  

   badly 
  attacked 
  lawn 
  can 
  be 
  treated 
  in 
  the 
  same 
  v^ay 
  and 
  clover 
  

   may 
  be 
  substituted, 
  as 
  it 
  is 
  not 
  affected. 
  On 
  la\\TLS, 
  carbon 
  bisulphide 
  

   can 
  be 
  used, 
  J 
  oz. 
  of 
  the 
  liquid 
  being 
  poured 
  into 
  holes 
  about 
  three 
  

   feet 
  apart, 
  which 
  should 
  at 
  once 
  be 
  closed. 
  

  

  ^ 
  

  

  EssiG 
  (E. 
  0.) 
  The 
  Cherry 
  Fruit 
  Sawfiy.— 
  i¥^%. 
  Bull 
  State 
  Comm, 
  

   Hortic, 
  Sacramento, 
  Cal., 
  iii, 
  no. 
  1, 
  Jan. 
  1914, 
  pp. 
  31-35, 
  3 
  figs. 
  

  

  The 
  cherry 
  fruit 
  sawfly 
  (Hoplocampa 
  cookei) 
  was 
  first 
  reported 
  from 
  

   the 
  Suisan 
  Valley, 
  Cal., 
  in 
  1883. 
  It 
  is 
  a 
  native 
  of 
  California 
  and 
  other 
  

   Pacific 
  Coast 
  States. 
  Considerable 
  damage 
  has 
  been 
  done 
  to 
  cherry 
  

   crops 
  by 
  the 
  larvae, 
  the 
  injury 
  consisting 
  of 
  one 
  or 
  more 
  clean 
  round 
  

   holes 
  bored 
  through 
  the 
  fruit 
  to 
  the 
  kernel, 
  which, 
  if 
  soft, 
  is 
  devoured, 
  

   as 
  well 
  as 
  the 
  fleshy 
  part 
  around 
  it. 
  The 
  fruit 
  becomes 
  discoloured 
  

   and 
  falls 
  to 
  the 
  ground. 
  It 
  is 
  stated 
  that 
  in 
  order 
  to 
  control 
  this 
  

   sawfly 
  effectively, 
  from 
  two 
  to 
  three 
  applications 
  of 
  lead 
  arsenate, 
  at 
  

   the 
  rate 
  of 
  4 
  to 
  5 
  lb. 
  of 
  arsenate 
  to 
  100 
  gals, 
  of 
  water, 
  may 
  be 
  necessary. 
  

   As 
  a 
  rule 
  two 
  good 
  applications 
  are 
  sufiicient, 
  the 
  first 
  being 
  made 
  

   shortly 
  before 
  the 
  blossoms 
  open 
  and 
  the 
  second 
  about 
  ten 
  days 
  later. 
  

   Autumn 
  ploughing 
  is 
  recommended 
  to 
  kill 
  the 
  larvae 
  and 
  pupae 
  in 
  

   the 
  soil. 
  A 
  3 
  per 
  cent, 
  distillate-oil 
  emulsion, 
  to 
  which 
  has 
  been 
  added 
  

   nicotin 
  sulphate 
  at 
  the 
  rate 
  of 
  one 
  part 
  to 
  2,000 
  parts 
  of 
  water, 
  has 
  

   also 
  been 
  suggested. 
  The 
  insect 
  has 
  been 
  reported 
  as 
  occurring 
  in 
  

   the 
  Suisan 
  Valley, 
  El 
  Dorado 
  and 
  Nevada 
  counties, 
  California, 
  and 
  at 
  

   Medford, 
  Oregon, 
  where 
  it 
  is 
  confined 
  to 
  a 
  very 
  small 
  area. 
  The 
  

   orchard 
  fruits 
  reported 
  to 
  have 
  been 
  attacked 
  are 
  cherry 
  (sweet 
  and 
  

   sour), 
  prune, 
  plum, 
  peach 
  and 
  apricot 
  (the 
  last 
  two 
  only 
  occasionally). 
  

  

  