﻿87 
  

  

  agricultural 
  pests 
  and 
  diseases 
  in 
  the 
  West 
  Indies. 
  An 
  easy 
  form 
  of 
  

   reference 
  is 
  provided 
  by 
  tables 
  showing 
  the 
  observations 
  of 
  their 
  

   occurrence 
  and 
  non-occurrence. 
  The 
  insect 
  pests 
  referred 
  to 
  are 
  as 
  

   folloAvs 
  : 
  — 
  

  

  Cacao 
  pests 
  : 
  — 
  Thrips 
  {Heliothrips 
  ruhrocinctus, 
  Giard), 
  noticed 
  in 
  

   Grenada, 
  St. 
  Vincent, 
  St. 
  Lucia, 
  Dominica, 
  St. 
  Kitts 
  ; 
  cacao 
  beetle 
  

   {Stirastoma 
  depression, 
  L.), 
  in 
  Grenada 
  ; 
  scale-insects 
  and 
  mealy 
  bugs 
  

   in 
  Grenada, 
  Dominica, 
  St. 
  Kitts, 
  Virgin 
  Islands 
  ; 
  the 
  greengrass 
  bug 
  

   (Nezara 
  viridula, 
  L.), 
  in 
  Grenada 
  ; 
  Aphis 
  in 
  Nevis. 
  

  

  Coconut 
  pests 
  : 
  — 
  Weevil 
  (Rhynchophonis 
  palmanim, 
  L.) 
  and 
  white 
  fly 
  

   (Aleyrodicus 
  cocois, 
  Curtis), 
  in 
  St. 
  Vincent 
  ; 
  coconut 
  snow 
  

   scale 
  (Diaspis 
  boisduvali, 
  Sign.), 
  glassy 
  star 
  scale 
  {Vinsonia 
  

   stellifera, 
  W^estw.), 
  Bourbon 
  aspidiotus 
  {Aspidiotus 
  destructor), 
  

   coconut 
  mealy 
  bug 
  (Pseudococcus 
  nipae, 
  Mask.), 
  and 
  green 
  scale 
  

   {Coccus 
  viridis, 
  Green) 
  in 
  Grenada, 
  St. 
  Vincent, 
  St. 
  Lucia, 
  Antigua, 
  

   St. 
  Kitts, 
  Nevis, 
  Virgin 
  Islands 
  ; 
  termites 
  in 
  Nevis. 
  

  

  Indian 
  corn 
  pests 
  : 
  — 
  Corn 
  ear 
  worms 
  [Chloridea 
  obsoleta, 
  F., 
  and 
  

   Laphygma 
  frugiperda, 
  S. 
  and 
  A.), 
  in 
  St. 
  Vincent, 
  Antigua, 
  St. 
  Kitts, 
  

   Nevis, 
  Virgin 
  Islands 
  ; 
  hard-back 
  grubs 
  (Lachnosterna), 
  in 
  Antigua. 
  

   The 
  ripening 
  heads 
  of 
  guinea-corn 
  were 
  attacked 
  by 
  caterpillars 
  (not 
  

   described) 
  in 
  Montserrat. 
  

  

  Cotton 
  pests 
  :— 
  The 
  cotton 
  w^orm 
  [Alabama 
  argillacea, 
  Hb.), 
  noticed 
  

   in 
  St. 
  Vincent, 
  St. 
  Lucia, 
  Montserrat, 
  Antigua, 
  St. 
  Kitts, 
  Nevis, 
  Virgin 
  

   Islands 
  ; 
  the 
  boll 
  w^orm 
  {Chloridea 
  obsoleta, 
  F.) 
  and 
  Laphygma 
  

   frugiperda, 
  S. 
  and 
  A., 
  in 
  Antigua 
  ; 
  the 
  cotton 
  stainers 
  {Dysdercus 
  

   andreae, 
  L., 
  and 
  D. 
  delauneyi, 
  Leth.), 
  in 
  Grenada, 
  St. 
  Vincent, 
  St. 
  

   Lucia, 
  Montserrat, 
  Antigua, 
  St. 
  Kitts, 
  Nevis, 
  Virgin 
  Islands. 
  Scale- 
  

   insects 
  {Saissetia 
  nigra, 
  Nietn., 
  and 
  Hemichionaspis 
  minor. 
  Mask.), 
  in 
  

   Grenada, 
  St. 
  Vincent, 
  Antigua, 
  Nevis, 
  Virgin 
  Islands 
  ; 
  the 
  flower-bud 
  

   maggot 
  {Contarinia 
  gossypii. 
  Felt), 
  in 
  Montserrat 
  and 
  Antigua 
  ; 
  the 
  

   leaf 
  -blister 
  mite 
  {Eriophyes 
  gossypii, 
  Banks), 
  in 
  St. 
  Vincent, 
  St. 
  Lucia, 
  

   Montserrat, 
  Antigua, 
  St. 
  Kitts, 
  Nevis, 
  Virgin 
  Islands 
  ; 
  a 
  hard-back 
  

   beetle 
  {Cyclocephala 
  dimidiata) 
  in 
  Grenada 
  ; 
  a 
  small 
  bronze 
  beetle 
  and 
  

   a 
  bug 
  {Edessa 
  meditabunda), 
  in 
  St. 
  Vincent 
  ; 
  cotton 
  aphis 
  {Ajjhis 
  

   gossypii, 
  Glover), 
  in 
  Montserrat, 
  Antigua 
  and 
  Nevis. 
  

  

  Pests 
  of 
  green 
  dressings 
  : 
  — 
  Pigeon 
  peas 
  were 
  attacked 
  by 
  the 
  beetles 
  

   Bruchus 
  chinensis 
  and 
  B. 
  quadrimaculatus, 
  in 
  Dominica 
  ; 
  a 
  caterpillar 
  

   (known 
  locally 
  as 
  the 
  Bengal 
  bean 
  w^orm) 
  attacked 
  horse 
  beans 
  in 
  

   Montserrat 
  and 
  cowpeas 
  in 
  Antigua 
  ; 
  a 
  weevil 
  {Exophthalmus 
  

   esuriens, 
  Boh.) 
  w^as 
  found 
  on 
  pigeon 
  peas 
  in 
  Antigua, 
  w^here 
  Barbuda 
  

   beans 
  were 
  infested 
  by 
  an 
  aphis. 
  

  

  Pests 
  of 
  limes 
  and 
  other 
  citrus 
  trees 
  : 
  — 
  Scale-insects, 
  especially 
  

   Coccus 
  viridis, 
  Green, 
  are 
  still 
  doing 
  much 
  damage 
  in 
  St. 
  Vincent 
  ; 
  

   all 
  the 
  commoner 
  kinds 
  occurred 
  in 
  St. 
  Lucia, 
  the 
  green 
  scale 
  {C. 
  viridis) 
  

   and 
  the 
  snow 
  scale 
  {Chionaspis 
  citri, 
  Comst.) 
  being 
  the 
  most 
  trouble- 
  

   some. 
  One 
  or 
  two 
  outbreaks 
  of 
  scale-insects 
  were 
  reported 
  from 
  

   Dominica 
  ; 
  the 
  purple 
  scale 
  {Lepidosaphes 
  beckii, 
  Newm.) 
  and 
  the 
  

   green 
  scale 
  were 
  noticed 
  in 
  Montserrat, 
  where 
  for 
  the 
  first 
  time 
  limes 
  

   w^ere 
  seriously 
  attacked 
  by 
  the 
  West 
  Indian 
  red 
  scale 
  {Chrysornjohalus 
  

   aurantii, 
  Mask.). 
  The 
  lantana 
  bug 
  {Orthezia 
  insignis, 
  Douglas) 
  is 
  very 
  

   scarce 
  in 
  Montserrat 
  ; 
  scales 
  w^ere 
  common 
  in 
  Antigua 
  ; 
  they 
  are 
  

   abundant 
  wherever 
  there 
  are 
  lime 
  trees 
  in 
  St. 
  Kitts; 
  green, 
  .purple 
  

   and 
  snow 
  scales 
  occurred 
  in 
  Nevis 
  ; 
  white 
  scale 
  and 
  purple 
  scale 
  in 
  

  

  