﻿649 
  

  

  Rutherford 
  (A.). 
  Treatment 
  of 
  trees 
  parasitised 
  by 
  Coccids. 
  — 
  

  

  UAgron. 
  Colon., 
  Paris, 
  ii, 
  no. 
  13, 
  31st 
  July 
  1914, 
  p. 
  24. 
  

  

  In 
  a 
  letter 
  to 
  the 
  above 
  periodical, 
  a 
  formula 
  is 
  given 
  against 
  

   injurious 
  Coccids, 
  such 
  as 
  Coccus 
  (Lecanium) 
  viridis, 
  viz 
  ; 
  — 
  Resin 
  1 
  lb., 
  

   commercial 
  soda 
  crystals 
  1 
  lb., 
  soap 
  1 
  lb., 
  in 
  4 
  gallons 
  of 
  water. 
  The 
  

   resin 
  must 
  be 
  powdered 
  as 
  finely 
  as 
  possible, 
  mixed 
  with 
  the 
  soda 
  

   with 
  the 
  help 
  of 
  a 
  little 
  water 
  and 
  the 
  mixture 
  is 
  then 
  gently 
  boiled. 
  

   Water 
  is 
  added 
  from 
  time 
  to 
  time 
  and 
  stirring 
  is 
  continued 
  until 
  a 
  

   clear 
  liquid 
  is 
  obtained. 
  The 
  soap 
  is 
  scraped 
  into 
  shavings 
  and 
  then 
  

   added 
  in 
  small 
  quantities 
  to 
  the 
  boiling 
  fluid, 
  which 
  is 
  stirred 
  until 
  

   the 
  soap 
  is 
  entirely 
  dissolved. 
  The 
  solution 
  is 
  then 
  taken 
  off 
  the 
  fire 
  

   and 
  left, 
  to 
  cool. 
  After 
  this 
  it 
  is 
  diluted 
  to 
  its 
  working 
  strength 
  and 
  

   may 
  then 
  be 
  used 
  either 
  as 
  a 
  spray 
  or 
  for 
  brush 
  apphcation. 
  The 
  

   soda 
  crystals 
  may 
  be 
  replaced 
  by 
  half 
  their 
  weight 
  of 
  sodium 
  carbonate 
  

   monohydrate. 
  

  

  Dyar 
  (H. 
  G.). 
  a 
  New 
  Phycitid 
  injurious 
  to 
  Pine. 
  — 
  Insecutor 
  Inscitiae 
  

   Menstruus, 
  Washington, 
  D.C., 
  no. 
  7, 
  July 
  1914, 
  p. 
  112. 
  

  

  A 
  new 
  Phycitid 
  moth, 
  injurious 
  to 
  pine 
  trees, 
  Pinipestis 
  erytJiropasa, 
  

   sp. 
  n., 
  is 
  described. 
  It 
  may 
  ultimately 
  be 
  placed 
  in 
  the 
  genus 
  Dioryclria. 
  

  

  Heliothis 
  armiger 
  Ha 
  nOMMflopaxt 
  M 
  Thrips 
  Ha 
  XJlonKt. 
  [Cliloridm 
  

   obsoleta 
  on 
  tomatoes 
  and 
  Thrips 
  on 
  cotton-seed. 
  — 
  « 
  TypKeCTaHCKOe' 
  

   CeJlbCKOe 
  Xo8flMCTBO.» 
  [Agriculture 
  of 
  Turkestan^, 
  Tashkent, 
  

   no 
  7, 
  July, 
  1914, 
  p. 
  699. 
  

  

  Investigations 
  at 
  the 
  Entomological 
  Station 
  of 
  Turkestan 
  have 
  

   led 
  to 
  the 
  discovery 
  of 
  large 
  numbers 
  of 
  Chloridea 
  obsoleta 
  on 
  tomatoes 
  

   and 
  of 
  Thrips 
  on 
  cotton 
  seed. 
  The 
  outbreak 
  is 
  thought 
  to 
  be 
  due 
  to 
  

   the 
  absence 
  of 
  rotation 
  of 
  crops 
  in 
  the 
  local 
  methods 
  of 
  agriculture, 
  

   tomatoes 
  being 
  grown 
  on 
  the 
  same 
  ground 
  for 
  many 
  years, 
  while 
  

   plantations 
  under 
  cotton 
  are 
  not 
  changed 
  for 
  decades. 
  

  

  Hinds 
  (W. 
  E.) 
  Boll 
  weevil 
  effect 
  upon 
  cotton 
  production, 
  — 
  Alabama 
  

   Agric. 
  Expt. 
  Sta., 
  Auburn, 
  Bull. 
  no. 
  178, 
  July, 
  1914, 
  pp. 
  87-99, 
  

   1 
  map. 
  

  

  Anthonomus 
  grandis, 
  the 
  boll 
  weevil, 
  has 
  spread 
  steadily 
  since 
  1891, 
  

   when 
  it 
  entered 
  Texas 
  from 
  Mexico, 
  at 
  an 
  average 
  annual 
  rate 
  of 
  50 
  

   miles. 
  This 
  progress 
  is 
  due 
  to 
  the 
  adaptability 
  of 
  the 
  cotton-plant 
  

   to 
  a 
  more 
  northern 
  chmate 
  than 
  that 
  in 
  which 
  it 
  originated, 
  but 
  the 
  

   degree 
  of 
  damage 
  by 
  the 
  boll 
  weevil 
  will 
  not 
  be 
  uniform 
  throughout 
  

   the 
  cotton 
  area, 
  owing 
  to 
  the 
  smaller 
  number 
  of 
  generations 
  in 
  cooler 
  

   and 
  drier 
  portions 
  of 
  the 
  cotton 
  belt 
  ; 
  e.g., 
  in 
  North 
  Texas 
  (33° 
  N. 
  lat.) 
  

   there 
  is 
  one 
  generation 
  less 
  than 
  in 
  South 
  Texas 
  (29° 
  N. 
  lat.). 
  By 
  

   far 
  the 
  most 
  important 
  factors 
  in 
  natural 
  control 
  are 
  chmatic 
  conditions; 
  

   extremes 
  of 
  heat 
  and 
  drought 
  are 
  most 
  important 
  when 
  they 
  occur 
  

   at 
  the 
  beginning 
  of 
  the 
  fruiting 
  season 
  and 
  continue 
  for 
  six 
  weeks 
  or 
  

   more, 
  and 
  the 
  author 
  instances 
  the 
  extermination 
  of 
  the 
  weevil 
  in 
  

   West 
  Texas 
  and 
  South 
  Central 
  Oklahoma 
  during 
  May 
  and 
  June, 
  1911. 
  

   In 
  some 
  localities 
  the 
  temperature 
  reached 
  116° 
  F. 
  in 
  the 
  shade, 
  

  

  