CONTENTS. 



Page. 



Introduction 1 



An associated spocies 2 



General agricultural conditions at Barstow, Tex 2 



Damage to crops previous to 1905 2 



Crops damaged in 1905 , — 3 



Alfalfa 3 



Milo maize . 5 



Cotton 6 



Peaches 



Grapes 7 



Garden vegetables 7 



Other food plants 8 



Seasonal history 8 



Natural eneniies 9 



Egg parasites 9 



Tachinid parasites 11 



Predaceous eneniies 11 



Methods of control 11 



Avoidance of injury to the seed crop of alfalfa 12 



A suggestion as to mechanical contrivances for collecting the insects. _ 12 



Preventive and protective measures 13 



Remedies when crops other than alfalfa are attacked 14 



ILLUSTRATIONS 



PLATE. 



Page. 



Plate I. Fig. 1. — Egg batch of I'ditiitoiini Ii(/(ita. showing hatched and 

 unhatched eggs. Fig. 2. — Egg batch of I'ciitatoiiia JUjata 

 parasitized by Telcnomus ashmcadi ■ lo 



TEXT FIGURES. 



Fui. 1. The conehuela {Pentatoma linata) : adult, egg mass, eggs 4 



2. Teleiiomuf< ashmeadi, an egg parasite of Pentatoma Jigata 10 



