﻿500. 
  

  

  •capacity 
  of 
  the 
  trees 
  in 
  1893 
  and 
  untreated 
  trees 
  gave 
  a 
  better 
  crop 
  

   in 
  spite 
  of 
  much 
  leaf 
  injury 
  by 
  the 
  caterpillars. 
  Clisiocampa 
  {Bomhyx) 
  

   neustria 
  and 
  Euproctis 
  {Por(hesia) 
  chrysorrhoea 
  were 
  noticed. 
  Cydia 
  

   {Carpocapsa) 
  pomonella 
  and 
  C. 
  funebiana 
  did 
  much 
  damage 
  and 
  the 
  

   fruits 
  which 
  survived 
  the 
  frosts 
  were 
  severely 
  attacked. 
  Band-traps 
  were 
  

   of 
  great 
  use. 
  In 
  the 
  Heidelberg 
  district, 
  £1,100 
  worth 
  of 
  corrugated 
  

   millboard 
  bands 
  were 
  purchased, 
  half 
  the 
  cost 
  of 
  which 
  was 
  defrayed 
  

   by 
  district 
  funds. 
  Cossus 
  cossus 
  appeared 
  in 
  the 
  flat 
  lands 
  on 
  

   the 
  Rhine 
  and 
  bisulphide 
  of 
  carbon 
  was 
  used 
  to 
  control 
  it. 
  Lyonetia 
  

   clerkella, 
  which 
  was 
  scarcely 
  to 
  be 
  found 
  after 
  the 
  hot 
  summer 
  of 
  1911, 
  

   reappeared 
  in 
  numbers 
  and 
  the 
  second 
  generation 
  in 
  autumn 
  was 
  

   particularly 
  evident 
  on 
  apple-trees 
  and 
  cherries. 
  

  

  Aphis 
  mali 
  was 
  favoured 
  by 
  the 
  warm 
  dry 
  weather 
  prevalent 
  from 
  

   mid-May 
  to 
  mid-June. 
  Solutions 
  of 
  soft 
  soap 
  and 
  nicotin 
  or 
  quassia 
  

   were 
  efficacious 
  where 
  the 
  leaves 
  had 
  not 
  curled 
  too 
  much. 
  Dipping 
  

   the 
  shoots 
  of 
  young 
  seedlings 
  is 
  specially 
  recommended. 
  ScJiizoneura 
  

   lanigera 
  was 
  widely 
  distributed 
  and, 
  contrary 
  to 
  a 
  statement 
  in 
  the 
  

   report 
  for 
  1912, 
  advices 
  from 
  Ludwigshafen 
  say 
  that 
  there 
  the 
  varieties 
  

   of 
  apples 
  known 
  as 
  Baumann's 
  rennet 
  and 
  Canada 
  rennet 
  are 
  non- 
  

   resistant. 
  Aspidiotus 
  ostreaeformis 
  and 
  Lepidosaphes 
  ulmi 
  (Mytilaspis 
  

   pomorum) 
  were 
  found 
  everywhere. 
  Painting 
  with 
  fruit-tree 
  car- 
  

   bolineum 
  lias 
  proved 
  successful. 
  Very 
  good 
  results 
  were 
  obtained 
  

   with 
  a 
  23-30 
  per 
  cent, 
  solution 
  appHed 
  to 
  the 
  trunks, 
  whilst 
  particu- 
  

   larly 
  badly 
  infested 
  trees 
  w^ere 
  also 
  sprayed 
  with 
  a 
  10-15 
  per 
  cent, 
  

   -solution. 
  Carbolineum 
  is 
  increasing 
  in 
  favour, 
  partly 
  owing 
  to 
  the 
  fact 
  

   that 
  some 
  makers 
  are 
  dehvering 
  a 
  product 
  of 
  good, 
  regular 
  quahty. 
  

   Tests 
  must 
  always 
  be 
  made 
  before 
  use. 
  Phytoptus 
  piri 
  occurred 
  in 
  

   some 
  numbers 
  and 
  Hyponomeuta 
  padellus 
  and 
  H. 
  malinellus 
  infested 
  

   prunes 
  and 
  plums. 
  Though 
  so 
  injurious 
  some 
  years 
  ago, 
  Hoplocampa 
  

   fulvicoryiis 
  again 
  remained 
  in 
  abeyance. 
  The 
  following 
  aphids 
  occurred 
  : 
  

   Myzus 
  cerasi, 
  on 
  the 
  cherry 
  ; 
  Phorodon 
  humuli 
  and 
  Hyalopterus 
  pruniy 
  

   on 
  prunes 
  and 
  plums 
  ; 
  Aphis 
  persicae, 
  on 
  apricots 
  and 
  peaches. 
  

  

  Abraxas 
  grossulariata 
  and 
  Nematus 
  were 
  comparatively 
  scarce 
  on 
  

   bush-fruits, 
  and 
  were 
  efi[ectively 
  controlled 
  with 
  tobacco 
  dust 
  and 
  basic 
  

   slag. 
  Myzus 
  ribis 
  occurred 
  on 
  the 
  red 
  currant, 
  and 
  Rhopalosiphutn 
  

   lactucae 
  on 
  the 
  leaves 
  of 
  the 
  black 
  currant, 
  while 
  Aphis 
  grossulariae, 
  

   Kalt., 
  attacked 
  the 
  shoots. 
  Schizoneura 
  grossulariae, 
  Schiile 
  

   (S.fodiens, 
  Bkt., 
  S. 
  ulmi) 
  was 
  found 
  at 
  the 
  roots 
  of 
  currant 
  bushes. 
  

  

  Trachea 
  (Hadena) 
  basilinea, 
  F., 
  caused 
  damage 
  to 
  grain 
  crops, 
  

   whilst 
  a 
  field 
  of 
  barley 
  was 
  nearly 
  destroyed 
  near 
  Mosl)ach 
  by 
  a 
  species 
  

   of 
  Ti'pula. 
  Oscinis 
  frit 
  did 
  not 
  appear 
  in 
  many 
  locahties 
  where 
  it 
  

   occurred 
  last 
  year. 
  Some 
  loss 
  was 
  occasioned 
  by 
  the 
  reddish 
  larvae 
  

   of 
  Clinodiplosis 
  equestris. 
  Cephus 
  pygmaeus 
  appeared 
  on 
  rye 
  ; 
  Tar 
  so- 
  

   nemus 
  spirifex 
  was 
  less 
  noticeable 
  than 
  before. 
  

  

  Fodder 
  and 
  sugar-beet 
  were 
  injured 
  by 
  Silpha 
  atrata, 
  against 
  which 
  

   treatment 
  of 
  the 
  seed 
  with 
  formalin 
  and 
  the 
  use 
  of 
  gypsum 
  were 
  

   tried, 
  but 
  not 
  found 
  practically 
  useful. 
  Anthomyia 
  conformis 
  damaged 
  

   from 
  10 
  to 
  40 
  per 
  cent, 
  of 
  the 
  plants 
  at 
  Scheckenbronnerhof, 
  whilst 
  

   Aphis 
  papaveris 
  occurred 
  in 
  many 
  fields. 
  

  

  Red 
  clover 
  and 
  sainfoin 
  were 
  infested 
  by 
  larvae, 
  probably 
  those 
  of 
  

   the 
  clover 
  root-beetle 
  ; 
  vetches 
  and 
  peas 
  were 
  attacked 
  by 
  Sitones 
  

   lineata 
  ; 
  Anisoplia 
  agricola, 
  Goeze 
  (villosa), 
  appeared 
  in 
  numbers 
  on 
  

   maize 
  at 
  Gremhof, 
  but 
  no 
  apparent 
  damage 
  resulted 
  ; 
  turnips 
  were 
  

  

  