﻿247 
  

  

  VosLER 
  (E. 
  J.). 
  Calendar 
  of 
  Insect 
  Pests 
  and 
  Plant 
  Diseases. 
  — 
  Mthhj. 
  

   Bull. 
  Sta. 
  Comm. 
  Hortic, 
  Sacramento, 
  Cal., 
  iii, 
  no. 
  2, 
  Feb. 
  1914, 
  

   pp. 
  81-85. 
  

  

  The 
  author 
  suggests 
  the 
  following 
  methods 
  of 
  control 
  for 
  insect 
  

   pests 
  to 
  be 
  carried 
  out 
  at 
  about 
  the 
  time 
  he 
  writes. 
  The 
  almond 
  mite, 
  

   the 
  eggs 
  of 
  which 
  are 
  deposited 
  in 
  the 
  autumn 
  on 
  the 
  twigs, 
  hatches 
  in 
  

   spring 
  and 
  damages 
  the 
  tender 
  growth. 
  Commercial 
  lime-sulphur 
  

   solution 
  with 
  flour 
  paste 
  seems 
  effective 
  in 
  the 
  control 
  of 
  this 
  pest. 
  

   The 
  following 
  formula 
  is 
  suggested 
  : 
  — 
  100 
  gals, 
  water, 
  4 
  gals, 
  flour 
  

   paste, 
  5 
  quarts 
  lime-sulphur 
  solution, 
  2 
  lb. 
  iron-sulphate. 
  Another 
  

   mite 
  destructive 
  to 
  fruit 
  is 
  the 
  pear-leaf 
  blister 
  mite, 
  wliicli 
  can 
  only 
  

   be 
  controlled 
  commercially 
  in 
  the 
  adult 
  stage, 
  as 
  the 
  eggs 
  and 
  young 
  are 
  

   inside 
  the 
  leaves. 
  A. 
  L. 
  Quaintance 
  recommends 
  a 
  lime-sulphur 
  wash 
  

   of 
  20 
  lb. 
  hme, 
  15 
  lb. 
  sulphur, 
  and 
  w^ater 
  to 
  make 
  50 
  gallons. 
  The 
  

   apphcation 
  should 
  be 
  made 
  just 
  before 
  the 
  leaves 
  are 
  out. 
  The 
  spring 
  

   canker-worms, 
  attacking 
  the 
  foliage 
  of 
  the 
  elm, 
  cherry 
  and 
  prune, 
  may 
  

   cause 
  entire 
  defoliation 
  of 
  their 
  host. 
  In 
  early 
  spring 
  the 
  wingless 
  

   female 
  moth 
  crawls 
  up 
  the 
  tree 
  to 
  deposit 
  its 
  eggs 
  on 
  the 
  bark. 
  Tree 
  

   tanglefoot 
  or 
  any 
  adhesive 
  bands 
  will 
  prevent 
  the 
  ascent 
  of 
  the 
  female 
  , 
  

   and 
  the 
  eggs 
  laid 
  below 
  the 
  bands 
  can 
  be 
  readily 
  destroyed. 
  Arsenate 
  

   of 
  lead, 
  5 
  lb. 
  to 
  100 
  gals, 
  of 
  w^ater, 
  sprayed 
  on 
  the 
  foliage 
  will 
  destroy 
  

   the 
  young 
  caterpillars. 
  The 
  government 
  formula 
  for 
  spraying 
  pear 
  

   thrips 
  consists 
  of 
  3 
  per 
  cent, 
  distillate 
  emulsion 
  combined 
  with 
  " 
  Black- 
  

   leaf 
  40," 
  1 
  to 
  2,000 
  parts 
  of 
  water. 
  Among 
  the 
  citrus 
  fruit 
  insects 
  the 
  

   citrus 
  mealy 
  bug 
  is 
  discussed. 
  E. 
  0. 
  Essig 
  finds 
  that 
  a 
  carbohc 
  acid 
  

   emulsion 
  spray, 
  plentifully 
  applied 
  (10 
  to 
  15 
  gallons 
  to 
  an 
  average- 
  

   sized 
  tree), 
  is 
  the 
  best 
  remedy. 
  Sometimes 
  two 
  or 
  four 
  applications, 
  

   a 
  week 
  apart, 
  are 
  necessary 
  ; 
  mnter 
  or 
  early 
  spring 
  spraying 
  seems 
  the 
  

   best. 
  Fumigation 
  has 
  given 
  good 
  results, 
  but 
  has 
  not 
  been 
  so 
  effective 
  

   as 
  the 
  emulsion. 
  The 
  ordinary 
  black 
  scale 
  dosage 
  is 
  the 
  one 
  generally 
  

   used. 
  No 
  practical 
  remedy 
  for 
  the 
  grain 
  aphis, 
  at 
  the 
  time 
  they 
  

   appear 
  in 
  spring, 
  is 
  known. 
  The 
  asparagus 
  beetle 
  appears 
  as 
  soon 
  as 
  

   the 
  asparagus 
  shoots 
  emerge 
  from 
  the 
  ground. 
  Control 
  measures 
  used 
  

   against 
  this 
  insect 
  consist 
  of 
  cutting 
  and 
  burning 
  egg-infested 
  shoots, 
  

   and 
  after 
  the 
  crop 
  has 
  been 
  harvested, 
  spraying 
  the 
  plants 
  with 
  arseni- 
  

   cal 
  sprays, 
  using 
  1 
  lb. 
  of 
  arsenate 
  of 
  lead 
  to 
  16 
  gallons 
  of 
  w^ater. 
  

  

  Essig 
  (E. 
  0.). 
  Insect 
  Notes. 
  — 
  Mthly. 
  Bull. 
  State 
  Comm. 
  Hortic. 
  Sacra- 
  

   mento, 
  Cat., 
  iii, 
  no. 
  2, 
  Feb. 
  1914, 
  p. 
  85. 
  

  

  J. 
  P. 
  Lyons 
  reports 
  Aphis 
  avenae, 
  F., 
  doing 
  serious 
  damage 
  to 
  oats 
  

   in 
  the 
  Imperial 
  Valley. 
  The 
  maple 
  plant 
  louse 
  (Drepanaphis 
  aceri- 
  

   folii, 
  Thos.,) 
  has 
  been 
  reported 
  as 
  occurring 
  on 
  maple 
  at 
  Hanford, 
  

   Cal. 
  , 
  and 
  the 
  author 
  has 
  repeatedly 
  taken 
  it 
  at 
  Sacramento. 
  Aspidiotus 
  

   perniciosus, 
  Comst., 
  has 
  been 
  found 
  in 
  large 
  numbers 
  in 
  pear 
  orchards 
  

   in 
  Yolo 
  County, 
  near 
  Sacramento, 
  and 
  A. 
  hederae 
  has 
  been 
  found 
  on 
  

   palm 
  leaves. 
  The 
  following 
  species 
  of 
  Pseudococcus 
  have 
  been 
  taken 
  

   in 
  the 
  vicinity 
  of 
  Upland, 
  Cal. 
  : 
  — 
  P. 
  crawii 
  on 
  white 
  sage 
  ; 
  P. 
  arte- 
  

   misiae 
  on 
  Artemisia 
  californica 
  ; 
  P. 
  bakeri 
  on 
  the 
  foliage 
  and 
  fruits 
  of 
  

   oranges 
  and 
  lemons, 
  roots 
  of 
  nightshade 
  {Solanum 
  douglasii) 
  and 
  wild 
  

   sunflower, 
  also 
  upon 
  Grevillea, 
  ivy, 
  Senecio 
  and 
  other 
  ornamental 
  

  

  