﻿684 
  

  

  trials. 
  " 
  Speculin 
  " 
  killed 
  42*8 
  per 
  cent, 
  of 
  the 
  larvae. 
  Though 
  this 
  is 
  

   insufficient, 
  the 
  cheapness 
  of 
  this 
  product 
  indicates 
  that 
  trials 
  with 
  a 
  

   more 
  concentrated 
  solution 
  than 
  that 
  of 
  1 
  per 
  cent, 
  strength, 
  costing 
  

   about 
  Is. 
  bd. 
  per 
  20 
  gallons, 
  are 
  advisable; 
  no 
  damage 
  was 
  noticed. 
  

   Besides 
  the 
  above 
  tests, 
  a 
  number 
  of 
  vineyard 
  proprietors 
  recorded 
  

   their 
  results. 
  They 
  almost 
  exclusively 
  used 
  the 
  nico 
  tin-soap 
  mixture 
  

   of 
  the 
  Palatine 
  Vine-growers' 
  Association 
  [see 
  this 
  Review, 
  Ser. 
  A, 
  ii, 
  

   p. 
  586.] 
  In 
  four 
  plots 
  the 
  figures 
  were 
  26*9, 
  27-2, 
  46*8 
  and 
  30*5. 
  This 
  

   partial 
  success 
  was 
  probably 
  due 
  to 
  the 
  wet 
  weather. 
  It 
  is 
  concluded 
  

   that 
  even 
  the 
  best 
  remedies 
  do 
  not 
  afford 
  complete 
  protection, 
  though 
  

   bad 
  weather 
  may 
  be 
  responsible 
  in 
  some 
  measure 
  for 
  this. 
  

  

  Bekampfung 
  des 
  Frostspanners. 
  Anlegung 
  von 
  Leimringen 
  an 
  Obst- 
  

   baumen. 
  [The 
  control 
  of 
  the 
  Winter 
  Moth, 
  Cheimatobia 
  brmnata, 
  

   by 
  banding 
  fruit 
  trees.] 
  — 
  Deutsche 
  Obstbauztg., 
  Stuttgart, 
  no. 
  14, 
  

   15th 
  July 
  1914, 
  p. 
  311. 
  

  

  The 
  banding 
  of 
  fruit 
  trees 
  to 
  protect 
  them 
  against 
  Cheimatobi 
  

   brumata 
  is 
  the 
  subject 
  of 
  a 
  notice 
  issued 
  to 
  the 
  police 
  forces 
  of 
  the 
  

   district 
  by 
  the 
  local 
  agricultural 
  authority 
  at 
  Hanau. 
  The 
  bands 
  must 
  

   be 
  of 
  tenacious 
  material, 
  about 
  ^ 
  inch 
  thick 
  and 
  at 
  least 
  3J 
  inches 
  

   wide, 
  spread 
  on 
  grease-proof 
  paper. 
  About 
  80 
  yards 
  of 
  paper 
  and 
  

   from 
  11 
  to 
  15 
  lb. 
  of 
  adhesive 
  material 
  must 
  be 
  used 
  per 
  100 
  trees. 
  

   Where 
  the 
  owners 
  neglect 
  this 
  duty, 
  the 
  police 
  will 
  have 
  the 
  work 
  

   done, 
  the 
  defaulters 
  being 
  charged 
  with 
  the 
  cosfc. 
  

  

  Grassi 
  (B.). 
  Nuovi 
  contributi 
  alia 
  conoscenza 
  delle 
  Filloserine. 
  Fuori- 
  

   uscita 
  dal 
  Terreno 
  delle 
  Prime 
  Larve 
  (Neonate) 
  della 
  Fillosera 
  

   della 
  vite. 
  [Further 
  contributions 
  to 
  the 
  knowledge 
  of 
  Phylloxera. 
  

   Exit 
  from 
  the 
  soil 
  of 
  the 
  primary 
  larvae.] 
  — 
  Atti 
  R. 
  Accad. 
  dei 
  

   Lincei, 
  Rome, 
  (5) 
  xxiii, 
  semest. 
  II, 
  fasc. 
  2, 
  19th 
  July 
  1914, 
  

   pp. 
  19-30. 
  

  

  Reference 
  is 
  made 
  to 
  the 
  work 
  of 
  Faucon, 
  who, 
  in 
  1868, 
  discovered 
  

   that 
  in 
  summer 
  the 
  young 
  Phylloxera 
  leaves 
  the 
  vine 
  on 
  which 
  it 
  was 
  

   born 
  and 
  traversing 
  cracks 
  in 
  the 
  soil, 
  emerges 
  from 
  it 
  and, 
  whether 
  

   aided 
  by 
  the 
  wind 
  or 
  not, 
  reaches 
  the 
  roots 
  of 
  other 
  vines. 
  A 
  brief 
  

   resume 
  of 
  discoveries 
  in 
  this 
  connection 
  is 
  given. 
  In 
  1913, 
  G. 
  Tramoni 
  

   studied 
  the 
  question 
  near 
  Barletta 
  and 
  observed 
  the 
  new-born 
  Phyl- 
  

   loxera 
  emerging 
  from 
  the 
  soil 
  ; 
  this 
  process 
  went 
  on 
  from 
  September 
  to 
  

   the 
  end 
  of 
  December 
  and 
  was 
  limited 
  to 
  fissured 
  soils, 
  though 
  it 
  also 
  

   occurred 
  between 
  the 
  soil 
  and 
  the 
  vine 
  stock. 
  The 
  migration 
  w^as 
  

   irregularly 
  distributed 
  and 
  the 
  maximum 
  seemed 
  to 
  occur 
  about 
  the 
  

   end 
  of 
  September, 
  when 
  as 
  many 
  as 
  50 
  individuals 
  might 
  be 
  found 
  

   round 
  one 
  vinestock. 
  

  

  The 
  migration 
  falls 
  off 
  very 
  greatly 
  in 
  the 
  first 
  week 
  of 
  October 
  and 
  

   after 
  December 
  no 
  more 
  was 
  observed 
  until 
  May. 
  Near 
  Barletta 
  the 
  

   hibernating 
  Phylloxera 
  begin 
  to 
  move 
  about 
  the 
  middle 
  of 
  March, 
  

   the 
  first 
  eggs 
  are 
  found 
  about 
  11th 
  April 
  and 
  the 
  first 
  young 
  about 
  

   25th 
  April, 
  and 
  observations 
  made 
  in 
  1914 
  show 
  that 
  migration 
  begins 
  

   soon 
  after 
  the 
  hatching 
  of 
  the 
  young 
  of 
  the 
  hibernated 
  brood. 
  The 
  

   phenomenon 
  has 
  been 
  observed 
  also 
  in 
  sandy 
  soil. 
  The 
  wandering 
  

   insects 
  shelter 
  from 
  the 
  sun 
  under 
  anything 
  which 
  comes 
  in 
  their 
  way, 
  

  

  