﻿499 
  

  

  tristriatus 
  var. 
  erineum, 
  blisters 
  the 
  leaves 
  of 
  the 
  walnut 
  tree, 
  while 
  

   E. 
  tiliae 
  var. 
  leiosoma, 
  attacks 
  the 
  lime. 
  

  

  Wahl 
  (C. 
  v.) 
  Sc 
  Muller 
  (K.). 
  Bericht 
  der 
  Hauptstelle 
  ftir 
  Pflanzen- 
  

   schutz 
  in 
  Baden 
  an 
  der 
  Grossherzogl. 
  landwirtschaftl. 
  Versuch- 
  

   sanstalt 
  Augustenberg 
  fur 
  das 
  Jahr 
  1913. 
  [The 
  report 
  of 
  the 
  chief 
  

   plant-protection 
  station 
  in 
  Baden, 
  at 
  the 
  Augustenberg 
  Agricul- 
  

   tural 
  Experiment 
  Institute 
  of 
  the 
  Grand 
  Duchy 
  for 
  1913.] 
  

   Stuttgart, 
  1914, 
  70 
  pp. 
  [Received 
  19th 
  June 
  1914.] 
  

  

  Eriophyes 
  vitis 
  was 
  reported 
  to 
  be 
  common 
  on 
  vines 
  in 
  many 
  locali- 
  

   ties, 
  but 
  Phyllocoptes 
  vitis 
  was 
  not 
  noticed, 
  not 
  even 
  at 
  Wollbach, 
  

   where 
  infestation 
  had 
  been 
  particularly 
  severe 
  during 
  the 
  last 
  few 
  

   years. 
  Phylloxera 
  vastatrix 
  was 
  observed 
  near 
  Efringen 
  in 
  August, 
  

   and 
  more 
  than 
  25,000 
  stocks 
  were 
  destroyed. 
  Caterpillars 
  of 
  what 
  

   appeared 
  to 
  be 
  a 
  species 
  of 
  Agrotis 
  damaged 
  the 
  ^dne-shoots. 
  Spargano- 
  

   this 
  (Tortrix) 
  pilleriana 
  was 
  uncommon. 
  Though 
  the 
  vine 
  moth, 
  

   (Clysia 
  ambigueUa, 
  Hb.) 
  has 
  remained 
  in 
  abeyance, 
  control 
  measures 
  

   must 
  not 
  be 
  omitted 
  in 
  1914. 
  Efficient 
  results 
  are 
  obtained 
  by 
  

   thorough 
  spraying 
  with 
  nicotin, 
  applied 
  at 
  the 
  right 
  moment. 
  Poly- 
  

   chrosis 
  botrana 
  has 
  diminished 
  in 
  Baden, 
  as 
  in 
  other 
  parts 
  of 
  Germany. 
  

   In 
  the 
  island 
  of 
  Reichenau 
  61,037 
  were 
  caught 
  on 
  sticky 
  racquets 
  between 
  

   the 
  14th 
  and 
  20th 
  IV^ay. 
  Later, 
  cold 
  weather 
  stopped 
  the 
  flight 
  and 
  

   few 
  captures 
  were 
  made. 
  The 
  first 
  generation 
  was 
  not 
  generally 
  

   combated. 
  At 
  the 
  Kaiserstuhl 
  the 
  moths 
  of 
  the 
  second 
  generation 
  

   were 
  on 
  the 
  wing 
  from 
  the 
  5th 
  to 
  the 
  25th 
  of 
  July, 
  the 
  period 
  of 
  greatest 
  

   intensity 
  being 
  from 
  the 
  10th 
  to 
  the 
  19th. 
  In 
  one 
  case 
  good 
  results 
  

   were 
  obtained 
  with 
  a 
  spray 
  containing 
  11 
  lb. 
  of 
  Muth's 
  compound, 
  

   8f 
  lb. 
  nicotin 
  and 
  8f 
  lb. 
  soft 
  soap. 
  This 
  quantity 
  was 
  applied 
  to 
  a 
  

   vineyard 
  of 
  IJ 
  acres 
  in 
  which 
  each 
  stock 
  had 
  from 
  6 
  to 
  15 
  bunches. 
  

   Spraying 
  4,000 
  stocks 
  with 
  700 
  pints 
  of 
  nicotin 
  at 
  Bingelbach 
  on 
  the 
  

   22nd 
  July 
  also 
  had 
  good 
  results 
  as 
  compared 
  with 
  untreated 
  vine- 
  

   yards. 
  Apples 
  were 
  everywhere 
  attacked 
  by 
  Anthonomus 
  pomorum, 
  

   against 
  which 
  sticky-bands 
  and 
  corrugated 
  paper 
  traps 
  were 
  useful. 
  

   Many 
  Phylhhius 
  ohlongus 
  were 
  noticed, 
  and 
  in 
  Bohlsbach 
  P. 
  piri 
  and 
  

   P. 
  argenfatus 
  defohated 
  the 
  fruit 
  trees. 
  Bark-beetles 
  were 
  more 
  or 
  

   less 
  numerous, 
  apples 
  and 
  the 
  German 
  prune 
  being 
  the 
  most 
  severely 
  

   attacked. 
  

  

  Scolytus 
  rugulosus 
  and 
  S. 
  pruni 
  were 
  very 
  common. 
  Infested 
  trees 
  

   should 
  be 
  burned, 
  as 
  it 
  was 
  found 
  that 
  the 
  removal 
  and 
  burning 
  of 
  

   the 
  bark 
  is 
  not 
  sufficient 
  to 
  destroy 
  these 
  beetles. 
  Cheimatobia 
  

   brumata 
  did 
  more 
  damage 
  in 
  1913 
  than 
  for 
  many 
  years 
  past. 
  On 
  the 
  

   lake 
  of 
  Constance 
  and 
  in 
  the 
  Mosbach 
  district 
  the 
  trees 
  were 
  often 
  

   completely 
  defoliated, 
  apple-trees 
  suffering 
  most. 
  This 
  severe 
  infes- 
  

   tation 
  was 
  partly 
  due 
  to 
  the 
  early 
  flight 
  in 
  the 
  autumn 
  of 
  1912 
  and 
  

   the 
  tardy 
  and 
  only 
  partial 
  application 
  of 
  sticky 
  bands. 
  In 
  orchards 
  

   in 
  which 
  banding 
  has 
  been 
  regularly 
  carried 
  out 
  and 
  was 
  effected 
  in 
  

   good 
  time 
  in 
  1912, 
  no 
  damage 
  was 
  done. 
  In 
  dealing 
  with 
  the 
  cater- 
  

   pillars, 
  banding 
  is 
  to 
  be 
  preferred 
  to 
  spraying 
  with 
  arsenicals. 
  Hypo- 
  

   nomeuta 
  malinellus 
  was 
  noticeable 
  everywhere 
  and 
  towards 
  the 
  end 
  of 
  

   May 
  apple-trees 
  were 
  covered 
  with 
  nests, 
  both 
  leaves 
  and 
  young 
  fruit 
  

   being 
  destroyed. 
  Torches 
  were 
  used, 
  but 
  great 
  care 
  is 
  necessary, 
  

   as 
  nest-destruction 
  effected 
  by 
  this 
  method 
  in 
  1892 
  lowered 
  the 
  bearing 
  

  

  