﻿ii8 
  REPORT 
  OF 
  NEW 
  JERSEY 
  STATE 
  MUSEUM. 
  

  

  SIPHOCORYNE 
  Passerini. 
  

   S. 
  salicis 
  Monell. 
  Occurs 
  on 
  various 
  species 
  of 
  willow. 
  

  

  RHOPALOSIPHUM 
  Koch. 
  

   R. 
  berberidis 
  Fitch. 
  Feeds 
  on 
  barberry. 
  

   R. 
  dianthi 
  Schrank. 
  Kinkora 
  (U 
  S 
  Ag). 
  On 
  pinks, 
  carnations 
  and 
  ger- 
  

  

  man 
  ivy. 
  In 
  greebouses 
  throughout 
  the 
  State. 
  

   R. 
  rhois 
  Monell. 
  A 
  feeder 
  on 
  sumac. 
  

   R. 
  solani 
  Thos. 
  Tomato-plant 
  louse; 
  sometimes 
  does 
  serious 
  injury 
  in 
  

  

  parts 
  of 
  Salem 
  and 
  Gloucester 
  Counties 
  (Sm). 
  

   R. 
  violse 
  Pergande. 
  On 
  violets 
  in 
  greehouses 
  throughout 
  the 
  State. 
  

  

  MYZUS 
  Passerini. 
  

  

  M. 
  cerasi 
  Fabr. 
  Very 
  abundant 
  throughout 
  the 
  State 
  on 
  cherry 
  and 
  

   sometimes 
  does 
  severe 
  injury. 
  This 
  is 
  one 
  of 
  the 
  black 
  lice, 
  very 
  

   resistant 
  to 
  ordinary 
  sprays, 
  and 
  best 
  dealt 
  with 
  in 
  late 
  September 
  

   when 
  the 
  sexed 
  forms 
  appear. 
  

  

  iVl. 
  mahaleb 
  Fonsc. 
  On 
  plum, 
  and 
  a 
  great 
  variety 
  of 
  other 
  plants. 
  

  

  M. 
  persicae 
  Sulz. 
  The 
  green-peach 
  louse. 
  Throughout 
  the 
  State, 
  but 
  

   never 
  in 
  harmful 
  numbers 
  so 
  far 
  as 
  I 
  am 
  aware. 
  

  

  iVi. 
  ribis 
  Linn. 
  Occurs 
  throughout 
  the 
  State 
  on 
  currant. 
  Causes 
  a 
  dis- 
  

   tortion 
  and 
  reddish 
  discoloration 
  of 
  the 
  leaf 
  which 
  is 
  sometimes 
  quite 
  

   conspicuous 
  and 
  occasionally 
  injurious. 
  

  

  PHORODON 
  Passerini. 
  

   P. 
  humuli 
  Schrank. 
  The 
  hop-plant 
  louse. 
  Throughout 
  the 
  northern 
  part 
  

   of 
  the 
  State 
  wherever 
  hops 
  are 
  grown, 
  and 
  reported 
  also 
  at 
  Freehold 
  

   (U 
  S 
  Ag). 
  The 
  winter 
  food 
  is 
  plum 
  and 
  only 
  the 
  summer 
  forms 
  occur 
  

   on 
  hop. 
  

  

  NECTAROPHORA 
  Oestl. 
  

  

  N. 
  avenae 
  Fabr. 
  (granaria 
  Kirby.) 
  The 
  wheat-louse. 
  Occurs 
  throughout 
  

   the 
  State, 
  and, 
  in 
  the 
  southern 
  counties, 
  sometimes 
  in 
  destructive 
  

   numbers. 
  Ordinarily 
  kept 
  in 
  check 
  by 
  its 
  natural 
  nemies, 
  and 
  when 
  it 
  

   does 
  occur 
  in 
  numbers 
  insecticide 
  applications 
  are 
  generally 
  im- 
  

   practicable. 
  

  

  N. 
  cucurbitae 
  Thos. 
  On 
  squash 
  and 
  pumpkins. 
  Sometimes 
  rather 
  abund- 
  

   ant 
  late 
  in 
  the 
  season, 
  but 
  never 
  in 
  harmful 
  numbers. 
  

  

  N. 
  fragariae 
  Koch, 
  var. 
  immaculata 
  Riley. 
  On 
  leaves 
  of 
  strawberry. 
  

  

  N. 
  lactucae 
  Kalt. 
  Lettuce-plant 
  louse. 
  

  

  N. 
  pisi 
  Kalt. 
  (destructor 
  Johns.) 
  The 
  pea-louse. 
  Throughout 
  the 
  State 
  

   south 
  of 
  the 
  Piedmont 
  plain, 
  and 
  seasonally 
  common 
  and 
  destructive. 
  

   Less 
  abundant 
  in 
  the 
  more 
  northern 
  counties. 
  

  

  N. 
  rosae 
  Linn. 
  Throughout 
  the 
  State 
  on 
  rose; 
  often 
  common 
  and 
  injuri- 
  

   ous. 
  Tobacco 
  decoction 
  is, 
  on 
  the 
  whole, 
  the 
  most 
  effective 
  material 
  

   against 
  this 
  species. 
  

  

  