﻿Commissioner 
  of 
  ^Agriculture. 
  563 
  

  

  One 
  orcliard 
  contained 
  several 
  trees, 
  pears 
  and 
  pliuns 
  quite 
  badly 
  

   infested 
  with 
  scurfy 
  bark 
  scale. 
  The 
  parties 
  owning 
  this 
  orchard 
  

   washed 
  these 
  trees 
  thoroughly 
  (using 
  a 
  brush) 
  with 
  a 
  solution 
  of 
  

   whale-oil 
  soap, 
  three 
  pounds 
  to 
  one 
  gallon 
  of 
  water. 
  This 
  was 
  

   applied 
  before 
  the 
  leaves 
  started 
  last 
  spring, 
  and 
  now 
  not 
  a 
  scale 
  

   is 
  to 
  be 
  found 
  on 
  those 
  trees, 
  and 
  the 
  bark 
  is 
  brighter 
  and 
  more 
  

   healthy 
  than 
  those 
  around 
  them 
  which 
  were 
  not 
  treated. 
  

  

  EECOMMENDATIONS. 
  

  

  Some 
  nurseries, 
  inspected 
  in 
  June 
  and 
  July, 
  were 
  apparently 
  

   free 
  from 
  San 
  Jose 
  scale. 
  I 
  went 
  over 
  these 
  same 
  blocks 
  again 
  

   in 
  October 
  and 
  jSTovember, 
  and 
  in 
  one 
  block 
  destroyed 
  about 
  200 
  

   trees, 
  and 
  in 
  another 
  about 
  250. 
  This 
  was 
  due 
  to 
  the 
  rapid 
  spread 
  

   of 
  this 
  scale 
  during 
  the 
  latter 
  part 
  of 
  the 
  season, 
  also 
  the 
  scales 
  

   can 
  be 
  much 
  more 
  easily 
  discovered 
  when 
  the 
  trees 
  are 
  free 
  from 
  

   leaves. 
  Hence, 
  I 
  would 
  recommend 
  two 
  inspections 
  yearly, 
  so 
  

   far 
  as 
  possible, 
  and 
  especially 
  in 
  localities 
  where 
  scale 
  is 
  known 
  to 
  

   have 
  existed. 
  

  

  I 
  also 
  think 
  it 
  would 
  be 
  advisable 
  to 
  compel 
  all 
  nurserymen 
  

   to 
  fumigate 
  their 
  stock 
  or 
  seedlings 
  before 
  being 
  planted, 
  and 
  

   also 
  all 
  trees 
  or 
  plants 
  put 
  upon 
  the 
  market, 
  using 
  hydrocyanic 
  acid 
  

   gas, 
  at 
  least 
  one 
  ounce 
  cyanide 
  potassium, 
  one 
  ounce 
  sulphuric 
  acid, 
  

   one 
  and 
  one-half 
  ounces 
  water, 
  for 
  every 
  100 
  cubic 
  feet 
  of 
  space 
  

   enclosed. 
  

  

  I 
  would 
  further 
  recommend 
  that 
  the 
  law 
  be 
  so 
  chan2:ed 
  as 
  to 
  

   compel 
  orchardists, 
  farmers 
  and 
  others 
  owning 
  land, 
  upon 
  which 
  

   trees 
  or 
  plants 
  are 
  being 
  grown, 
  to 
  destroy 
  any 
  trees 
  or 
  plants 
  

   infested 
  with 
  dangerously 
  injurious 
  insects 
  or 
  diseases; 
  also 
  be 
  

   compelled 
  to 
  destroy 
  the 
  canker 
  worm, 
  army 
  worm, 
  caterpillar, 
  

   etc., 
  which 
  appear 
  in 
  the 
  spring 
  and 
  do 
  such 
  an 
  amount 
  of 
  damage 
  

   both 
  to 
  the 
  foliage 
  and 
  to 
  the 
  crop 
  of 
  fruit. 
  

  

  I 
  feel 
  that 
  our 
  State 
  experiment 
  station 
  should 
  be 
  urged 
  to 
  

   make 
  some 
  systematic 
  experiments 
  in 
  treating 
  infested 
  trees 
  and 
  

  

  