﻿Bui. 
  1 
  1 
  7, 
  Bureau 
  of 
  Entomology, 
  U. 
  S. 
  Dept. 
  of 
  Agriculture. 
  

  

  Plate 
  IV. 
  

  

  Fig. 
  1.— 
  Sweet 
  Peas 
  Infested 
  by 
  the 
  Red 
  Spider, 
  but 
  Protected 
  by 
  Dusting, 
  at 
  

   Intervals 
  of 
  One 
  Week, 
  with 
  Precipitated 
  Sulphur. 
  Los 
  Angeles, 
  Cal., 
  

   1910. 
  (Original.) 
  

  

  Fig. 
  2.— 
  Sweet 
  Peas, 
  Growth 
  Aborted, 
  Blossoms 
  Indifferent, 
  and 
  Vines 
  nearly 
  

   Killed 
  by 
  the 
  Red 
  Spider. 
  Los 
  Angeles, 
  Cal., 
  1910. 
  (Original.) 
  

  

  THE 
  RED 
  SPIDER 
  ON 
  SWEET 
  PEAS. 
  

  

  